Revolving Loan Facility Narrative (Details) (USD $)	3 Months Ended		9 Months Ended				1 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 Minimum [Member] M	Sep. 30, 2012 Maximum [Member] M	Jun. 30, 2012 Revolving Credit Facility [Member] Silicon Valley Bank [Member]	Sep. 30, 2012 Revolving Credit Facility [Member] Silicon Valley Bank [Member]	Jun. 12, 2012 Revolving Credit Facility [Member] Silicon Valley Bank [Member]	Sep. 30, 2012 Other Assets [Member] Revolving Credit Facility [Member]
Revolving Loan Facility Limit								$ 5,000,000	$ 5,000,000
Unused Revolving Loan Facility									2,662,000
Debt Instrument, Description of Variable Rate Basis							Prime Rate as announced by Wall Street Journal ("WSJ") plus one and a quarter percent
Debt Instrument, Basis Spread on Variable Rate									1.25%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage								0.35%
Prime Rate								3.25%
Line of Credit Facility, Amount Outstanding								750,000
Eligible AR that can be borrowed									80.00%
Revolving Loan Facility Unamortized financing costs										29,000
Line of Credit Facility, Amortization of Financing Costs, Term					12	24
Amortization of deferred financing costs	$ 4,000	$ 15,000	$ 33,000	$ 46,000