Annual report pursuant to Section 13 and 15(d)

Shareholders' Equity - Market Based Restricted Stock (Details)

v3.7.0.1
Shareholders' Equity - Market Based Restricted Stock (Details) - USD ($)
3 Months Ended 12 Months Ended
Aug. 18, 2016
Nov. 17, 2014
Oct. 29, 2016
Apr. 30, 2016
May 02, 2015
Jan. 28, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted, shares           1,546,000
Total grant date fair value $ 1,800,000          
Granted, weighted average grant date fair value per share           $ 1.51
Restricted Stock - Total Shareholder Return [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted, shares     231,799 179,156 106,963  
Total grant date fair value   $ 1,373,000 $ 422,000 $ 223,571 $ 776,865  
Granted, weighted average grant date fair value per share   $ 4.91 $ 1.82   $ 7.26  
Award Vesting Period   3 years 3 years 3 years 3 years  
Fair Value Assumptions and Methodology [Abstract]            
Risk Free Interest Rate   1.03% 0.76%   0.90%  
Implied volatility rate   60.00% 77.00%      
Less than 33% [Member] | Restricted Stock - Total Shareholder Return [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Restricted Stock, Vesting Criteria, Total Shareholder Return     0.00% 0.00% 0.00%  
Greater than 33% [Member] | Restricted Stock - Total Shareholder Return [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Restricted Stock, Vesting Criteria, Total Shareholder Return     50.00% 50.00% 50.00%  
Greater than 50% [Member] | Restricted Stock - Total Shareholder Return [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Restricted Stock, Vesting Criteria, Total Shareholder Return     100.00% 100.00% 100.00%  
Greater than 100% [Member] | Restricted Stock - Total Shareholder Return [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Restricted Stock, Vesting Criteria, Total Shareholder Return     150.00% 150.00% 150.00%  
Market Based Stock Restricted Stock Awards [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted, shares 625,000          
Total grant date fair value $ 958,000          
Expected Term 1 year 2 months 12 days          
Fair Value Assumptions and Methodology [Abstract]            
Risk Free Interest Rate 1.50%          
Implied volatility rate 86.00%          
Tranche 1 (immediate) [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted, weighted average grant date fair value per share $ 1.60          
Expected Term 0 years          
Award vesting rights, Percentage 33.30%          
Tranche 2 ($4.00/share) [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted, weighted average grant date fair value per share $ 1.52          
Number of consecutive trading days 20 days          
Average closing price for 20 consecutive trading days, Lower range limit for vesting $ 4.00          
Continuous employment requisite period 1 year          
Vesting expiration period from date of grant 10 years          
Expected Term 1 year 5 months 15 days          
Award vesting rights, Percentage 33.30%          
Tranche 3 ($6.00/share) [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted, weighted average grant date fair value per share $ 1.48          
Number of consecutive trading days 20 days          
Average closing price for 20 consecutive trading days, Lower range limit for vesting $ 6.00          
Continuous employment requisite period 2 years          
Vesting expiration period from date of grant 10 years          
Expected Term 2 years 2 months 19 days          
Award vesting rights, Percentage 33.30%          
Below 25 Percent [Member] | Restricted Stock - Total Shareholder Return [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Restricted Stock, Vesting Criteria, Total Shareholder Return   0.00%        
25% - 32% [Member] | Restricted Stock - Total Shareholder Return [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Restricted Stock, Vesting Criteria, Total Shareholder Return   25.00%        
33% - 39% [Member] | Restricted Stock - Total Shareholder Return [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Restricted Stock, Vesting Criteria, Total Shareholder Return   50.00%        
40% - 49% [Member] | Restricted Stock - Total Shareholder Return [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Restricted Stock, Vesting Criteria, Total Shareholder Return   75.00%        
50% or Above [Member] | Restricted Stock - Total Shareholder Return [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Restricted Stock, Vesting Criteria, Total Shareholder Return   100.00%        
Minimum [Member] | Restricted Stock - Total Shareholder Return [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted, weighted average grant date fair value per share       $ 0.98    
Fair Value Assumptions and Methodology [Abstract]            
Risk Free Interest Rate       0.90%    
Implied volatility rate       71.00% 54.00%  
Maximum [Member] | Restricted Stock - Total Shareholder Return [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted, weighted average grant date fair value per share       $ 1.72    
Fair Value Assumptions and Methodology [Abstract]            
Risk Free Interest Rate       1.00%    
Implied volatility rate       73.00% 55.00%  
Chief Executive Officer [Member] | Restricted Stock - Total Shareholder Return [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted, shares   199,790        
Chief Strategy Officer [Member] | Restricted Stock - Total Shareholder Return [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted, shares   79,916