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Debt (Narrative) (Details) - USD ($)
1 Months Ended 3 Months Ended 36 Months Ended
Apr. 30, 2016
Mar. 31, 2016
Mar. 31, 2015
Aug. 15, 2018
May. 09, 2016
Dec. 31, 2015
Mar. 01, 2015
Debt Instrument [Line Items]              
Long-term debt, gross   $ 11,006,000       $ 10,988,000  
Amortization of financing costs   18,000 $ 22,000        
Prepaid Expenses and Other Current Assets              
Debt Instrument [Line Items]              
Unamortized debt issuance expense   179,000       197,000  
Comerica Term Loan | August 15, 2015 to August 15, 2018 | Forecast              
Debt Instrument [Line Items]              
Debt instrument, principal payment as percentage of excess cash flow (percent)       50.00%      
Promissory Note with Stockholder Representative | Promissory Note              
Debt Instrument [Line Items]              
Long-term debt, gross   $ 1,785,000       1,785,000  
Stated interest rate (percent)             15.00%
Debt Instrument, Covenant, Cash Balance Repayment Threshold (greater than)   200.00%          
SRS Note   $ 1,785,000       1,785,000  
Interest payable   315,000          
Promissory Note with Stockholder Representative | February 15, 2014 to April 15, 2015 | Promissory Note              
Debt Instrument [Line Items]              
Debt instrument, periodic principal payment   $ 50,000          
Debt instrument, additional periodic payment, principal, earnings benchmark, measurement period   3 months          
Debt instrument, additional periodic payment, principal, reduction to calculated payment   $ 1,500,000          
Promissory Note with Stockholder Representative | August 15, 2015 to August 15, 2018 | Promissory Note              
Debt Instrument [Line Items]              
Debt instrument, additional periodic payment, principal, earnings benchmark, measurement period   6 months          
Debt instrument, additional periodic payment, principal, reduction to calculated payment   $ 3,000,000          
Debt instrument, additional periodic payment, principal, percent of earnings benchmark (percent)   40.00%          
Term Loan              
Debt Instrument [Line Items]              
Stated interest rate (percent)   12.00%          
Revolving Credit Facility              
Debt Instrument [Line Items]              
Stated interest rate (percent)   8.00%          
Main Street Capital Corporation | Term Loan              
Debt Instrument [Line Items]              
Revolving loan facility, maximum borrowing capacity   $ 11,000,000          
Main Street Term Loan, net of unamortized debt discount based on an imputed interest rate of 12%; $179 at March 31, 2016 and $197 at December 31, 2015, respectively.   9,000,000          
Long-term debt, gross   8,821,000       $ 8,803,000  
Revolving loan facility, unused borrowing capacity   $ 2,000,000          
Debt Instrument, imputed interest rate, percentage   12.00%       12.00%  
Debt instrument, unamortized discount   $ 179,000       $ 197,000  
Main Street Capital Corporation | Revolving Credit Facility              
Debt Instrument [Line Items]              
Revolving loan facility, maximum borrowing capacity   2,000,000          
Long-term debt, gross   400,000       $ 400,000  
Revolving loan facility, unused borrowing capacity   $ 1,395,000          
Subsequent Event | Main Street Capital Corporation | Term Loan              
Debt Instrument [Line Items]              
Main Street Term Loan, net of unamortized debt discount based on an imputed interest rate of 12%; $179 at March 31, 2016 and $197 at December 31, 2015, respectively.         $ 0    
Subsequent Event | Main Street Capital Corporation | Revolving Credit Facility              
Debt Instrument [Line Items]              
Line of Credit Facility, Periodic Payment, Principal $ 400,000            
Debt Instrument, Principal Payment, Excess Cash Flow $ 244,000