Loan and Security Agreement (Detail Textuals) (Silicon Valley Bank, USD $)	12 Months Ended
	Dec. 31, 2012 Loan Agreement	Dec. 31, 2012 Line of Credit	Sep. 30, 2011 Line of Credit
Line of Credit Facility [Line Items]
Maximum access of financing under Loan and security agreement	$ 15,000,000	$ 15,000,000
Loan Agreement, covenant terms	Advances under the Loan Agreement could not exceed a borrowing base limit calculated using an advanced rate of 80% on our eligible accounts receivable, subject to certain reserves established by SVB and other adjustments.
Advanced rate on eligible accounts receivables	80.00%
Loan agreement, interest rate description	Interest on advances of credit under the Loan Agreement for financed accounts receivables were equal to SVB's prime rate, which was 3.25% per annum at December 31, 2012, plus 3.0% per annum or, if we maintained at all times during any month an adjusted quick ratio of 2.0 to 1.0, then SVB's prime rate plus 1.50% per annum. The minimum monthly interest charge was $6,000 per month.
Financed accounts receivables interest rate description	Silicon Valley Bank's Prime Rate
Silicon Valley Bank's prime rate for accounts receivables	3.25%
Addition to prime rate for accounts receivable	3.00%
Maximum adjusted quick ratio for financing accounts receivable	2.0
Minimum adjusted quick ratio for financing accounts receivable	1.0
Addition to prime rate for inventory	1.50%
Financed inventory interest rate description	Silicon Valley Bank's Prime Rate
Minimum monthly interest charge	6,000
Maximum adjusted quick ratio for financing	1.25
Minimum adjusted quick ratio for financing	1.0
Amount subject to judgments, claims or liabilities individually or in aggregate	150,000
Outstanding amount under loan agreement	3,400,000
Letter of credit, face amount			$ 525,000