Shareholders' Equity Stock Option Activity (Details) (USD $)
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3 Months Ended |
12 Months Ended |
Feb. 01, 2014
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Jan. 31, 2015
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Feb. 02, 2013
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Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward] |
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Granted, weighted average grant date fair value |
$ 3.96us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
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$ 3.92us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
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$ 1.03us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
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2011 Omnibus Incentive Plan [Member] |
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Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] |
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Balance outstanding at beginning of period |
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3,083,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = evlv_A2011OmnibusIncentivePlanMember
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Granted |
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232,000evlv_ShareBasedCompensationArrangementOptionsGrantsInPeriodGross / us-gaap_PlanNameAxis = evlv_A2011OmnibusIncentivePlanMember
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Exercised |
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(222,000)us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_PlanNameAxis = evlv_A2011OmnibusIncentivePlanMember
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Forfeited or canceled |
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(630,000)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod / us-gaap_PlanNameAxis = evlv_A2011OmnibusIncentivePlanMember
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Balance outstanding at end of period |
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2,463,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = evlv_A2011OmnibusIncentivePlanMember
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Options exercisable |
1,229,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = evlv_A2011OmnibusIncentivePlanMember
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1,322,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = evlv_A2011OmnibusIncentivePlanMember
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50,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = evlv_A2011OmnibusIncentivePlanMember
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Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward] |
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Balance outstanding at beginning of period, weighted average exercise price |
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$ 4.03us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_PlanNameAxis = evlv_A2011OmnibusIncentivePlanMember
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Granted, weighted average grant date fair value |
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$ 4.65us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_PlanNameAxis = evlv_A2011OmnibusIncentivePlanMember
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Exercised, weighted average exercise price |
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$ 2.89us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice / us-gaap_PlanNameAxis = evlv_A2011OmnibusIncentivePlanMember
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Forfeited or canceled, weighted average grant date fair value |
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$ 4.43us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue / us-gaap_PlanNameAxis = evlv_A2011OmnibusIncentivePlanMember
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Balance outstanding at end of period, weighted average exercise price |
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$ 4.09us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_PlanNameAxis = evlv_A2011OmnibusIncentivePlanMember
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Options exercisable, weighted average exercise price |
$ 3.78us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = evlv_A2011OmnibusIncentivePlanMember
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$ 4.05us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = evlv_A2011OmnibusIncentivePlanMember
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$ 2.29us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = evlv_A2011OmnibusIncentivePlanMember
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2004 Omnibus Incentive Stock Plan [Member] |
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Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] |
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Balance outstanding at beginning of period |
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2,104,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = evlv_A2004OmnibusIncentiveStockPlanMember
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Granted |
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107,000evlv_ShareBasedCompensationArrangementOptionsGrantsInPeriodGross / us-gaap_PlanNameAxis = evlv_A2004OmnibusIncentiveStockPlanMember
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Exercised |
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(665,000)us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_PlanNameAxis = evlv_A2004OmnibusIncentiveStockPlanMember
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Forfeited or canceled |
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(340,000)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod / us-gaap_PlanNameAxis = evlv_A2004OmnibusIncentiveStockPlanMember
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Balance outstanding at end of period |
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1,206,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = evlv_A2004OmnibusIncentiveStockPlanMember
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Options exercisable |
2,037,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = evlv_A2004OmnibusIncentiveStockPlanMember
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1,179,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = evlv_A2004OmnibusIncentiveStockPlanMember
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1,965,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = evlv_A2004OmnibusIncentiveStockPlanMember
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Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward] |
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Balance outstanding at beginning of period, weighted average exercise price |
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$ 6.25us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_PlanNameAxis = evlv_A2004OmnibusIncentiveStockPlanMember
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Granted, weighted average grant date fair value |
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$ 5.66us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_PlanNameAxis = evlv_A2004OmnibusIncentiveStockPlanMember
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Exercised, weighted average exercise price |
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$ 2.50us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice / us-gaap_PlanNameAxis = evlv_A2004OmnibusIncentiveStockPlanMember
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Forfeited or canceled, weighted average grant date fair value |
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$ 11.76us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue / us-gaap_PlanNameAxis = evlv_A2004OmnibusIncentiveStockPlanMember
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Balance outstanding at end of period, weighted average exercise price |
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$ 6.71us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_PlanNameAxis = evlv_A2004OmnibusIncentiveStockPlanMember
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Options exercisable, weighted average exercise price |
$ 6.21us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = evlv_A2004OmnibusIncentiveStockPlanMember
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$ 6.76us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = evlv_A2004OmnibusIncentiveStockPlanMember
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$ 6.14us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = evlv_A2004OmnibusIncentiveStockPlanMember
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2001 Omnibus Stock Plan [Member] |
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Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] |
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Balance outstanding at beginning of period |
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1,121,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = evlv_A2001OmnibusStockPlanMember
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Granted |
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0evlv_ShareBasedCompensationArrangementOptionsGrantsInPeriodGross / us-gaap_PlanNameAxis = evlv_A2001OmnibusStockPlanMember
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Exercised |
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(260,000)us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_PlanNameAxis = evlv_A2001OmnibusStockPlanMember
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Forfeited or canceled |
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(35,000)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod / us-gaap_PlanNameAxis = evlv_A2001OmnibusStockPlanMember
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Balance outstanding at end of period |
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826,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = evlv_A2001OmnibusStockPlanMember
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Options exercisable |
1,121,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = evlv_A2001OmnibusStockPlanMember
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826,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = evlv_A2001OmnibusStockPlanMember
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1,151,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = evlv_A2001OmnibusStockPlanMember
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Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward] |
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Balance outstanding at beginning of period, weighted average exercise price |
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$ 6.05us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_PlanNameAxis = evlv_A2001OmnibusStockPlanMember
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Granted, weighted average grant date fair value |
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$ 0.00us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_PlanNameAxis = evlv_A2001OmnibusStockPlanMember
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Exercised, weighted average exercise price |
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$ 2.34us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice / us-gaap_PlanNameAxis = evlv_A2001OmnibusStockPlanMember
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Forfeited or canceled, weighted average grant date fair value |
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$ 13.67us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue / us-gaap_PlanNameAxis = evlv_A2001OmnibusStockPlanMember
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Balance outstanding at end of period, weighted average exercise price |
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$ 6.89us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_PlanNameAxis = evlv_A2001OmnibusStockPlanMember
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Options exercisable, weighted average exercise price |
$ 6.05us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = evlv_A2001OmnibusStockPlanMember
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$ 6.89us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = evlv_A2001OmnibusStockPlanMember
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$ 5.69us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = evlv_A2001OmnibusStockPlanMember
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Stock Option [Member] |
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Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] |
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Balance outstanding at beginning of period |
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500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = us-gaap_StockOptionMember
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Granted |
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0evlv_ShareBasedCompensationArrangementOptionsGrantsInPeriodGross / us-gaap_PlanNameAxis = us-gaap_StockOptionMember
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Exercised |
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(50,000)us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_PlanNameAxis = us-gaap_StockOptionMember
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Forfeited or canceled |
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0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod / us-gaap_PlanNameAxis = us-gaap_StockOptionMember
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Balance outstanding at end of period |
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450,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = us-gaap_StockOptionMember
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Options exercisable |
397,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = us-gaap_StockOptionMember
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380,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = us-gaap_StockOptionMember
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363,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = us-gaap_StockOptionMember
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Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward] |
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Balance outstanding at beginning of period, weighted average exercise price |
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$ 4.24us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_PlanNameAxis = us-gaap_StockOptionMember
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Granted, weighted average grant date fair value |
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$ 0.00us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_PlanNameAxis = us-gaap_StockOptionMember
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Exercised, weighted average exercise price |
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$ 1.82us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice / us-gaap_PlanNameAxis = us-gaap_StockOptionMember
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Forfeited or canceled, weighted average grant date fair value |
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$ 0.00us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue / us-gaap_PlanNameAxis = us-gaap_StockOptionMember
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Balance outstanding at end of period, weighted average exercise price |
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$ 4.51us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_PlanNameAxis = us-gaap_StockOptionMember
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Options exercisable, weighted average exercise price |
$ 4.11us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = us-gaap_StockOptionMember
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$ 4.60us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = us-gaap_StockOptionMember
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$ 3.90us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = us-gaap_StockOptionMember
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