Quarterly report pursuant to Section 13 or 15(d)

Capitalization and Equity Structure (Details Textual)

v3.5.0.2
Capitalization and Equity Structure (Details Textual)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Oct. 30, 2016
USD ($)
$ / shares
shares
Aug. 31, 2016
shares
Aug. 12, 2016
USD ($)
$ / shares
shares
Sep. 30, 2016
USD ($)
shares
Sep. 30, 2016
USD ($)
shares
Sep. 30, 2015
USD ($)
Dec. 31, 2015
USD ($)
$ / shares
shares
Class of Stock [Line Items]              
Common Stock, Shares Authorized       71,429,000 71,429,000   71,429,000
Preferred Stock, Shares Authorized       10,000,000 10,000,000   10,000,000
Common Stock, Shares, Issued       21,393,000 21,393,000   15,027,000
Preferred Stock, Shares Outstanding   3,000   0 0   13,000
Stock Issued During Period, Shares, New Issues             15,000
Fair Value Adjustment of Warrants | $       $ 1,620 $ 3,030    
Warrants Not Settleable in Cash, Fair Value Disclosure | $             $ 9,195
Conversion of Stock, Shares Converted   921,000   1,000 10,000    
Conversion of Stock, Shares Issued   267   60,000 1,389,000    
Preferred Stock Convertible Conversion Price       7.07 7.07    
Proceeds from Issuance of Common Stock | $         $ 14,694 $ 0  
Stockholders' Equity, Reverse Stock Split         1-for-7 reverse split    
Subsequent Event [Member]              
Class of Stock [Line Items]              
Stock Issued During Period, Shares, New Issues 488,000            
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares $ 3.74            
Proceeds from Issuance of Common Stock | $ $ 1,825            
Class of Warrant or Right, Number Of Warrants Exercised 488,000            
Over-Allotment Option [Member]              
Class of Stock [Line Items]              
Stock Issued During Period, Shares, New Issues     267,000        
Proceeds from Issuance of Common Stock | $     $ 998        
2016 Equity Offering [Member]              
Class of Stock [Line Items]              
Conversion of Stock, Shares Issued     267       141
2016 Equity Offering [Member] | Common Stock [Member]              
Class of Stock [Line Items]              
Stock Issued During Period, Shares, New Issues     3,750,000        
Sale of Stock, Price Per Share | $ / shares     $ 4.00        
Proceeds from Issuance of Common Stock | $     $ 13,696        
Warrant [Member]              
Class of Stock [Line Items]              
Class of Warrant or Right, Number of Securities Called by Warrants or Rights             2,122,000
Warrants Term             5 years
Warrant [Member] | Minimum [Member]              
Class of Stock [Line Items]              
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares             $ 3.74
Warrant [Member] | Maximum [Member]              
Class of Stock [Line Items]              
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares             $ 8.75
Series A Preferred Stock [Member]              
Class of Stock [Line Items]              
Class of Warrant or Right, Number of Securities Called by Warrants or Rights             2,122,000
Gross Proceeds from Preferred Stock and Warrants | $             $ 15,000
Conversion of Stock, Shares Converted       3,000 3,000    
Conversion of Stock, Shares Issued       921,000 921,000    
Preferred Stock Convertible Conversion Price       3.74 3.74    
Series A Preferred Stock [Member] | Minimum [Member]              
Class of Stock [Line Items]              
Preferred Stock Convertible Conversion Price   3.74          
Series A Preferred Stock [Member] | Maximum [Member]              
Class of Stock [Line Items]              
Preferred Stock Convertible Conversion Price   7.07          
Convertible Preferred Stock [Member]              
Class of Stock [Line Items]              
Amortization of Financing Costs and Discounts, Total | $       $ 3,016 $ 10,345