Quarterly report pursuant to Section 13 or 15(d)

STOCKHOLDERS' EQUITY (Details Textual)

v3.8.0.1
STOCKHOLDERS' EQUITY (Details Textual) - USD ($)
 1 Months Ended 3 Months Ended
Feb. 18, 2018
Mar. 31, 2018
Mar. 31, 2017
Class of Stock [Line Items]      
Proceeds from issuance of common stock   $ 81,822,066 $ 0
Exercise Price 2.00 [Member]      
Class of Stock [Line Items]      
Stock Issued During Period Shares Stock Options Cashless Exercised     4,100
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price     $ 2.00
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period     3,491
Underwritten Public Offering [Member]      
Class of Stock [Line Items]      
Stock Issued During Period, Shares, New Issues 6,164,000    
Share Price $ 14.00    
Proceeds from issuance of common stock $ 81,822,066    
Payments of Stock Issuance Costs 4,473,934    
Proceeds From Issuance Of Common Stock Gross $ 86,296,000    
Over-Allotment Option [Member]      
Class of Stock [Line Items]      
Stock Issued During Period, Shares, New Issues 804,000    
Common Stock [Member]      
Class of Stock [Line Items]      
Share Price     $ 13.47
Stock Issued During Period Value, Issued For Consideration     $ 8,200
Stock Issued During Period Shares, Issued For Consideration     609