Quarterly report pursuant to Section 13 or 15(d)

SUBSEQUENT EVENTS (Details Textual)

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SUBSEQUENT EVENTS (Details Textual) - USD ($)
1 Months Ended 6 Months Ended
Jul. 21, 2017
Jun. 30, 2017
Jun. 30, 2016
Subsequent Event [Line Items]      
Share Price   $ 13.31  
Proceeds from Issuance of Common Stock   $ 0 $ 61,074,997
Subsequent Event [Member] | Underwritten Public Offering [Member]      
Subsequent Event [Line Items]      
Stock Issued During Period, Shares, New Issues 4,977,658    
Share Price $ 12.50    
Proceeds from Issuance of Common Stock $ 59.2    
Stock Issued During Period, Value, New Issues $ 62.2