Bank Line of Credit (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2011
Bank Line of Credit 2011 [Member]
Line of Credit Facility, Current Borrowing Capacity	$ 2,000,000
Line of Credit Facility, Percentage of Borrowings Against Eligible Accounts Receivable	80.00%
Line of Credit Facility, Loan Modification Fee	8,000
Line of Credit Facility, Interest Rate Description	The annual interest rate remained unchanged at prime plus 1.0%.
Line of Credit Facility, Expiration Date	Nov. 15, 2012
Bank Line of Credit 2011 [Member] | Minimum [Member]
Line of Credit Facility, Current Borrowing Capacity	2,000,000
Bank Line of Credit 2011 [Member] | Maximum [Member]
Line of Credit Facility, Current Borrowing Capacity	3,000,000
Bank Line of Credit 2012 [Member]
Line of Credit Facility, Percentage of Borrowings Against Eligible Accounts Receivable	25.00%
Line of Credit Facility, Percentage of Borrowings Against Eligible Inventory	25.00%
Line of Credit Facility, Loan Modification Fee	8,000
Line of Credit Facility, Expiration Date	Nov. 15, 2013
Debt Instrument, Unused Borrowing Capacity, Amount	$ 1,746,000