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Debt - Long-term and Short-term, Combined (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Jun. 30, 2013
Jul. 27, 2012
Dec. 30, 2010
Debt, long-term and short-term, combined amount          
Total debt $ 11,072 $ 10,317      
Less current portion (3,513) (2,841)      
Long-term debt, net of current portion 7,559 7,476      
Unamortized debt discount $ 100 200      
Line of credit with FGI | Line of Credit          
Debt, long-term and short-term, combined amount          
Interest rate (as a percent) 6.50%        
Total debt $ 3,513 2,841      
Unsecured Debt | 1.5 million 8% shareholder note due 2018          
Debt, long-term and short-term, combined amount          
Face amount of debt $ 1,500 $ 1,500     $ 1,500
Interest rate (as a percent) 8.00% 8.00% 8.00%   6.00%
Total debt $ 1,623 $ 1,598      
Convertible Subordinated Debt | 3.0 million 8% subordinated convertible shareholder notes due 2018          
Debt, long-term and short-term, combined amount          
Face amount of debt $ 3,000 $ 3,000      
Interest rate (as a percent) 8.00% 8.00%      
Total debt $ 2,972 $ 2,947      
Notes Payable, Other Payables | 3.0 million 8% shareholder note due 2018          
Debt, long-term and short-term, combined amount          
Face amount of debt $ 3,000 $ 3,000   $ 3,000  
Interest rate (as a percent) 8.00% 8.00%   8.00%  
Total debt $ 2,964 $ 2,931