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RESTATEMENT OF PREVIOUSLY FILED FINANCIAL INFORMATION - STOCKHOLDERS' EQUITY - Additional Information (Details) - USD ($)
 1 Months Ended 9 Months Ended 12 Months Ended
Feb. 25, 2019
Apr. 30, 2019
Feb. 28, 2018
Jul. 31, 2017
Sep. 30, 2018
Dec. 31, 2018
Dec. 31, 2017
Class of Stock [Line Items]              
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period         103,113 153,113 133,308
Share Price         $ 11.80 $ 10.58 $ 13.18
Underwritten Public Offering              
Class of Stock [Line Items]              
Stock Issued During Period, Shares, New Issues     6,164,000 4,977,658      
Share Price     $ 14.00 $ 12.50      
Proceeds From Issuance Of Common Stock Gross     $ 86,296,000 $ 62,220,725      
Proceeds from issuance of common stock, net of offering costs     81,819,073        
Payments of Stock Issuance Costs,     $ 4,476,927        
Over-Allotment Option              
Class of Stock [Line Items]              
Stock Issued During Period, Shares, New Issues     804,000 477,658      
Wishbone Partners, LLC              
Class of Stock [Line Items]              
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares   4,581,001          
Common Stock Held in Escrow   2,538,071          
Business Acquisition, Share Price $ 6.19            
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned $ 28,331,327