Debt - Line of Credit with FGI (Details) - USD ($)		12 Months Ended
	Oct. 15, 2014	Dec. 31, 2015	Dec. 31, 2014	Feb. 14, 2011
Line of Credit Facility [Line Items]
Debt, Long-term and Short-term, Combined Amount		$ 11,072,000	$ 10,317,000
Line of credit with FGI
Line of Credit Facility [Line Items]
Maximum borrowing capacity		$ 7,500,000
Line of credit with FGI | Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity				$ 7,500,000
Optional additional term		1 year
Termination agreement payment	$ 400,000
Threshold percentage of purchase receivables elected by issuer		80.00%
Purchased receivable reserved by borrower (as a percent)		20.00%
Advance amount of purchased accounts receivable (as a percent)		80.00%
Maximum borrowing capacity against inventory collateral		$ 1,500,000
Inventory collateral sublimit determinant percentage of aggregate purchase price for purchased receivable		50.00%
Maximum borrowing capacity against significant OEM customer inventory		$ 200,000
Line of credit facility interest rate determinant threshold percentage		6.50%
Interest rate on advances or borrowings		6.50%	6.50%
Periodic collateral fees percentage of eligible receivables		0.30%
Periodic collateral fees percentage of borrowing against inventory collateral		0.38%
Amount outstanding standby fees determination threshold		$ 2,400,000
Standby fees percentage of determinant rate		0.44%
Standby fees determinant rate		80.00%
Entry facility fee amount		$ 75,000
Amendment facility fee amount		$ 75,000
Termination fee percentage		2.00%
Termination fee waiver notification period		10 days
Notification period for termination fee waiver threshold reserve percentage		40.00%
Termination fee waiver threshold consecutive days		30 days
Gross accounts receivable pledged as collateral		$ 3,200,000
Debt, Long-term and Short-term, Combined Amount		$ 3,513,000	$ 2,841,000
Line of credit with FGI | Prime Rate | Line of Credit
Line of Credit Facility [Line Items]
Basis spread on variable rate		2.50%
Line of credit with FGI | Secured Debt | Line of Credit
Line of Credit Facility [Line Items]
Debt, Long-term and Short-term, Combined Amount		$ 1,500,000
Line of credit with FGI | Secured Debt | Line of Credit
Line of Credit Facility [Line Items]
Debt, Long-term and Short-term, Combined Amount		$ 2,000,000