Term Note Payable and Revolving Credit Line - Narrative (Details) (USD $)	9 Months Ended
	Sep. 30, 2013	Mar. 01, 2012 Bridge Bank – Term Note Payable - February 10, 2016 Term Note Payable Bridge Bank, N.A.	Sep. 30, 2013 Bridge Bank – Revolving Credit Line - March 29, 2015 Line of Credit Bridge Bank, N.A. Revolving Credit Facility	Sep. 30, 2013 Third Business Financing Modification Agreement with Bridge Bank Bridge Bank, N.A.
Debt Instrument [Line Items]
Debt instrument, face amount		$ 5,000,000
Line of credit facility, maximum borrowing capacity			10,000,000
Percentage of accounts receivable			80.00%
Covenant, accounts receivable amount			$ 1,000,000
Maximum period accounts receivable past due	90 days
Asset coverage ratio, February 2013 through May 2013				0.70
Asset coverage ratio, June 2013 through September 2013				0.80
Asset coverage ratio, October 2013 through November 2013				1.15
Asset coverage ratio, December 2013 and after				1.25
Debt service coverage ratio				1.75