Annual report pursuant to Section 13 and 15(d)

STOCKHOLDERS' EQUITY (Details)

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STOCKHOLDERS' EQUITY (Details)
 6 Months Ended 12 Months Ended
Nov. 23, 2016
USD ($)
$ / shares
shares
Nov. 01, 2016
$ / shares
shares
Jul. 31, 2015
USD ($)
Director
$ / shares
shares
May 11, 2015
USD ($)
$ / shares
shares
Apr. 23, 2015
USD ($)
$ / shares
shares
Dec. 24, 2014
$ / shares
shares
Jun. 30, 2015
USD ($)
$ / shares
Dec. 31, 2016
USD ($)
$ / shares
shares
Dec. 31, 2015
USD ($)
$ / shares
Class of Warrant or Right [Line Items]                  
Proceeds from Warrant Exercises | $             $ 4,635,000 $ 0 $ 4,635,000
Underwritten public offering (in shares) | shares           3,500,000      
Warrants issued price (in dollars per share) | $ / shares           $ 0.01      
Warrants Outstanding (in shares) | shares               3,736,617  
Exercise Price (in dollars per share) | $ / shares             $ 5.00 $ 5.00 $ 5.00
Common Stock [Member]                  
Class of Warrant or Right [Line Items]                  
Common stock price per share (in dollars per share) | $ / shares $ 7.00 $ 7.00              
Underwritten public offering (in shares) | shares 293,889 6,000,000              
Gross proceeds from offering | $ $ 44,057,000                
Direct Placement [Member]                  
Class of Warrant or Right [Line Items]                  
Proceed from sale of stock from private placement | $     $ 15,500,000            
Number of board of directors | Director     2            
Common stock price per share (in dollars per share) | $ / shares     $ 5.50            
Underwritten public offering (in shares) | shares     2,830,000            
Private Placement [Member]                  
Class of Warrant or Right [Line Items]                  
Proceed from sale of stock from private placement | $       $ 10,000,000 $ 7,000,000        
Common stock price per share (in dollars per share) | $ / shares       $ 8.00 $ 3.00        
Underwritten public offering (in shares) | shares       1,250,000 2,333,333        
Warrant issued (in shares) | shares       625,000          
Exercise Price (in dollars per share) | $ / shares       $ 10          
Placement Agent [Member]                  
Class of Warrant or Right [Line Items]                  
Warrant issued (in shares) | shares       50,000          
Term of warrant       5 years          
Exercise Price (in dollars per share) | $ / shares       $ 11.00          
2015 July Financing [Member]                  
Class of Warrant or Right [Line Items]                  
Warrants Outstanding (in shares) | shares [1]               20,000  
Exercise Price (in dollars per share) | $ / shares [1]               $ 6.05  
Expiration Date [1]               Jul. 31, 2020  
2015 May Financing [Member]                  
Class of Warrant or Right [Line Items]                  
Warrants Outstanding (in shares) | shares [2]               625,000  
Exercise Price (in dollars per share) | $ / shares [2]               $ 10.00  
Expiration Date [2]               Nov. 11, 2017  
2015 May Financing Agent Warrants [Member]                  
Class of Warrant or Right [Line Items]                  
Warrants Outstanding (in shares) | shares [2]               50,000  
Exercise Price (in dollars per share) | $ / shares [2]               $ 11.00  
Expiration Date [2]               May 11, 2020  
2014 December Financing [Member]                  
Class of Warrant or Right [Line Items]                  
Warrants Outstanding (in shares) | shares [3]               2,572,881  
Exercise Price (in dollars per share) | $ / shares [3]               $ 5.00  
Expiration Date [3]               Dec. 24, 2019  
2014 December Financing Agent Warrants [Member]                  
Class of Warrant or Right [Line Items]                  
Warrants Outstanding (in shares) | shares [3]               68,735  
Exercise Price (in dollars per share) | $ / shares [3]               $ 5.00  
Expiration Date [3]               Dec. 18, 2019  
2012 Series B Private Placement [Member]                  
Class of Warrant or Right [Line Items]                  
Warrants Outstanding (in shares) | shares [4]               400,001  
Exercise Price (in dollars per share) | $ / shares [4]               $ 25.00  
Expiration Date [4]               Oct. 24, 2018  
[1] In connection with the offering on July 31, 2015, the placement agent received warrants to purchase 20,000 share of common stock at $6.05 per share. The warrants are exercisable and expire on July 31. 2020.
[2] In connection with the offering on May 11, 2015, warrants to purchase 625,000 shares of common stock at $10.00 per share were issued. All of the warrants exercisable and expire November 11, 2017. Also in connection with the offering on May 11, 2015, the placement agent received warrants to purchase 50,000 share of common stock at $11.00 per share. The warrants are exercisable and expire on May 11. 2020.
[3] In connection with an offering on December 24, 2014, warrants to purchase 3,500,000 shares of common stock at $5.00 per share were purchased and issued for $0.01 per warrant. All of the warrants are exercisable immediately and expire on December 24, 2019. At December 31, 2016, 2,572,881 warrants are outstanding. Also in connection with the offering on December 24, 2014, the underwriter received warrants to purchase 68,735 shares of common stock at $5.00 per share. The warrants were exercisable on December 18, 2015 and expire on December 18, 2019.
[4] In connection with a private placement offering on October 25, 2012, warrants to purchase 400,001 shares of common stock at $25.00 per share were issued. All of the warrants are exercisable immediately and expire on October 24, 2018.