Quarterly report pursuant to Section 13 or 15(d)

EMPLOYEE STOCK OPTIONS AND RESTRICTED STOCK AWARD PLAN - Additional Information (Details)

v3.20.1
EMPLOYEE STOCK OPTIONS AND RESTRICTED STOCK AWARD PLAN - Additional Information (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2013
Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation Expenses Charged Against Income For Share Based Awards Included In General And Administrative Expenses $ 673,795 $ 834,465    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized       2,500,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized     5,000,000  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 31,355      
Stock options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Per Share Weighted Average Price of Shares Purchased $ 0.66 $ 5.87    
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options $ 575,402      
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition 1 year 3 months 18 days      
Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options $ 3,905,640      
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition 1 year 7 months 6 days