Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation - Narrative (Details)

v3.19.1
Stock-Based Compensation - Narrative (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Compensation Expense    
Stock based compensation $ 915,469 $ 1,279,807
Compensation cost related to non vested awards not yet recognized $ 944,426  
Average remaining expense recognition period 1 year 7 months  
Award Information and Activity    
Number of options outstanding (in shares) 264,246 264,246
Number of options exercisable (in shares) 264,246  
Intrinsic value of options exercisable $ 0  
Weighted average exercise price (in usd per share) $ 2.84  
Weighted average remaining contractual term 2 years 1 month 5 days  
Granted in period 0 0
Expected dividend yield 0.00%  
Options    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Option and restricted stock unit vesting period 3 years  
Award Information and Activity    
Expected forfeiture rate 0.00%