Quarterly report pursuant to Section 13 or 15(d)

Note 1 - Description of Business - Additional Information (Detail)

v3.7.0.1
Note 1 - Description of Business - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Mar. 31, 2016
Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]        
Accumulated deficit $ (154,143) $ (150,994)    
Maximum amount of secured borrowing arrangement 10,000      
Cash 3,016 4,943 $ 9,054 $ 7,081
Working capital deficit 11,500      
Cash received on account of sale of accounts 4,400      
Repayments on secrued borrowing arrangement 5,100      
Convertible notes with a related party, net of discount 16,618 $ 16,465    
Total liabilities $ 38,525