Financing Arrangements - Silicon Valley Bank Line of Credit (Details) (USD $)	1 Months Ended	12 Months Ended
	Sep. 30, 2012	Jun. 30, 2012	Sep. 18, 2012
Line of Credit Facility [Line Items]
Debt covenant minimum liquidity		$ 3,500,000
Debt covenant liquidity benchmark			7,500,000
Collateral monitoring fees per month		850
Line of credit, amendment and renewal fee	25,000
EX-IM Line [Member]
Line of Credit Facility [Line Items]
Debt covenant minimum liquidity			$ 5,000,000