Fair Value Measurement (Details) (USD $)	0 Months Ended		3 Months Ended
	Sep. 16, 2013	May 10, 2012	Sep. 30, 2013	Sep. 30, 2012	Jun. 30, 2013	Mar. 11, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of warrants issued (in warrants)		1,709,091
Sale price of warrants (in dollars per warrant)		5.50
Warrant conversion ratio		1
Exercise price of warrants (in dollars per warrant)		8
Exercise period for warrants	5 years	3 years
Mark-to-market gain recorded on warrants			$ 68,000	$ 3,102,000
Conversion dilution percentage, maximum			33.00%
Fair value of derivative embedded within convertible debt	3,854,000		0		3,870,000	6,662,000
Gain on derivative			16,000
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of outstanding warrants		5,281,000	283,000		443,000
Secured Convertible Notes | Secured Convertible 8% Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Line of credit, amount outstanding						20,782,000
Debt issue amount						$ 50,082,000
Interest rate						8.00%
Conversion price (in dollars per share)			$ 1.25
Warrant
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Conversion of stock, shares converted (in warrants)	545,455
Common stock, shares outstanding (in warrants)			1,163,636