Debt (Details) - Revolving Credit Facility [Member] - Wells Fargo Bank [Member]	12 Months Ended
	Dec. 31, 2016 USD ($)
Debt (Details) [Line Items]
Line of Credit Facility, Current Borrowing Capacity	$ 6,000,000
Line of Credit Facility Excess Availability Requirement	2,000,000
Line of Credit Facility, Maximum Borrowing Capacity	$ 4,000,000
Line of Credit Facility, Description	The credit facility matures in October 2018 and is secured by our accounts receivable, inventory and certain other assets.
Line of Credit Facility, Interest Rate Description	Borrowings under the credit facility bear interest at a variable per annum rate equal to the daily three month London Bank Interbank Offered Rate plus 3.5%.
Debt Instrument, Basis Spread on Variable Rate	3.50%
Line of Credit Facility, Covenant Terms	maintain a minimum fixed charge ratio of not less than 1.1 to 1.0 for the trailing twelve months with an initial compliance date at December 31, 2017.
Long-term Line of Credit	$ 0