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Debt (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Mar. 01, 2015
Feb. 27, 2015
Oct. 31, 2013
Debt Instrument [Line Items]          
Deferred financing costs   $ 276,000      
Amortization of financing costs $ 87,000 89,000      
Current portion of long-term debt 400,000 400,000      
Prepaid Expenses and Other Current Assets          
Debt Instrument [Line Items]          
Deferred financing costs 72,000        
Other Assets          
Debt Instrument [Line Items]          
Deferred financing costs $ 125,000        
Comerica Term Loan | Principal payment terms, period 1          
Debt Instrument [Line Items]          
Excess cash flow (percent) 50.00%        
Note with SRS | Promissory Note          
Debt Instrument [Line Items]          
Stated interest rate percentage     15.00% 10.00%  
Note payable, total of periodic principal payments $ 0 100,000      
Interest payable, current and noncurrent 238,000        
Note payable, face value 1,785,000 1,785,000      
Note with SRS | Principal payment terms, period 1 | Promissory Note          
Debt Instrument [Line Items]          
Debt instrument, periodic payment, principal $ 50,000        
Debt instrument, additional periodic payment, principal, earnings benchmark, measurement period 3 months        
Debt covenant, additional principal payments, adjusted base EBITDA $ 1,500,000        
Note with SRS | Principal payment terms, period 2 | Promissory Note          
Debt Instrument [Line Items]          
Debt instrument, additional periodic payment, principal, earnings benchmark, measurement period 6 months        
Debt covenant, additional principal payments, adjusted base EBITDA $ 3,000,000        
Debt covenant, additional principal payments, adjusted base EBITDA (percent) 40.00%        
Term Loan          
Debt Instrument [Line Items]          
Stated interest rate percentage 12.00%        
Revolving Credit Facility          
Debt Instrument [Line Items]          
Stated interest rate percentage 8.00%        
Main Street Capital Corporation | Term Loan Facility | Senior Loans          
Debt Instrument [Line Items]          
Note payable, face value         $ 11,000,000
Debt Instrument, Unused Borrowing Capacity, Amount $ 1,370,000        
Main Street Capital Corporation | Term Loan          
Debt Instrument [Line Items]          
Revolving loan facility, maximum borrowing capacity         11,000,000
Proceeds from credit facility 9,000,000        
Note payable, total of periodic principal payments 0        
Main Street Capital Corporation | Revolving Credit Facility          
Debt Instrument [Line Items]          
Revolving loan facility, maximum borrowing capacity         2,000,000
Proceeds from credit facility 400,000        
Note payable, total of periodic principal payments 613,000 249,000      
Proceeds from revolving credit facility 613,000 $ 249,000      
Main Street Capital Corporation | Revolving Loan Facility | Senior Loans          
Debt Instrument [Line Items]          
Note payable, face value         $ 2,000,000
Line of Credit Facility, Remaining Borrowing Capacity $ 2,000,000