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Equity (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Apr. 29, 2016
Aug. 13, 2015
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Fair value of options granted         $ 0.11  
Stock based compensation expense     $ 9 $ 146 $ 243 $ 523
Cash settlement price per share     $ 0.30   $ 0.30  
Antidilutive securities excluded from computation of diluted net income per share     5,012,000 5,035,000 4,936,000 5,003,000
Leap Tide Capital Partners LLC [Member]            
Vested share rights earned by date of repayment         1,531,396  
Vested shares converted to common stock         1,531,396  
Loan and Security Agreement [Member] | Leap Tide Capital Partners LLC [Member]            
Borrowings   $ 2,000        
Repayment of principal $ 2,000          
Number of common stock shares issued   850,000        
Vested share right per month   179,167        
Warrants [Member]            
Fair value of warrants granted price per share         $ 0.08  
Selling General and Administrative Expense [Member]            
Stock based compensation expense     $ 9 $ 146 $ 243 $ 523
Discontinued Operations [Member] | U.S. Seismic Systems, Inc [Member]            
Stock based compensation expense       $ 0   $ 6