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, shares in Thousands, $ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended
Dec. 31, 2015
USD ($)
$ / shares
shares
Jun. 30, 2016
USD ($)
shares
Jun. 30, 2015
shares
Jun. 30, 2016
USD ($)
shares
Class of Stock [Line Items]        
Common Stock, Shares Authorized 71,429 71,429   71,429
Preferred Stock, Shares Authorized 10,000 10,000   10,000
Common Stock, Shares, Issued 15,027 16,383   16,383
Preferred Stock, Shares Issued 13 4   4
Preferred Stock, Shares Outstanding 13 4   4
Stock Issued During Period, Shares, New Issues 15      
Fair Value Adjustment of Warrants | $   $ 1,665   $ 4,650
Warrants Not Settleable in Cash, Fair Value Disclosure | $ $ 9,195      
Conversion of Stock, Shares Converted   5   9
Conversion of Stock, Shares Issued     763 1,329
Unamortized Warrant Discount | $   $ 3,016   $ 3,016
Warrant [Member]        
Class of Stock [Line Items]        
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 2,122      
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares $ 8.75      
Warrants Term 5 years      
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      
Gross Proceeds from Preferred Stock and Warrants | $ $ 15,000      
Preferred Stock Convertible Conversion Price   7.07   7.07
Convertible Preferred Stock [Member]        
Class of Stock [Line Items]        
Amortization of Financing Costs and Discounts, Total | $   $ 4,205   $ 7,329