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Shareholders' Equity, Restricted Shares (Details) - Restricted Stock [Member] - USD ($)
6 Months Ended 12 Months Ended
Jun. 30, 2017
Dec. 31, 2016
Restricted shares and warrants, number of shares [Roll Forward]    
Balance, beginning of period (in shares) 992,548  
Shares granted (in shares) 0  
Shares vested (in shares) (402,147)  
Shares surrendered (in shares) 0  
Balance, end of period (in shares) 590,401 992,548
Restricted shares, weighted average grant date fair value [Roll Forward]    
Balance, beginning of period (in dollars per share) $ 1.30  
Shares granted (in dollars per share) 0  
Shares vested (in dollars per share) 1.10  
Shares surrendered (in dollars per share) 0  
Balance, end of period (in dollars per share) $ 1.44 $ 1.30
Restricted shares and warrants, additional disclosures [Abstract]    
Weighted average remaining life in years, Balance 1 year 7 months 17 days 1 year 4 months 6 days
Aggregate intrinsic value, Balance $ 1,995,021  
Shares vested, Aggregate intrinsic value 723,865  
Aggregate intrinsic value, Balance 1,062,722 $ 1,995,021
Unrecognized share-based compensation expense $ 1,020,000  
Unrecognized compensation expense, weighted average period of recognition 1 year 7 months 2 days  
Minimum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period 6 months  
Maximum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period 1 year