Common Stock Warrants (Details Textual) (USD $)	12 Months Ended					12 Months Ended		12 Months Ended		12 Months Ended					12 Months Ended				12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2012 Silicon Valley Bank [Member]	Dec. 27, 2011 Silicon Valley Bank [Member]	Jun. 30, 2012 Silicon Valley Bank [Member] Loan and Security Agreement [Member]	Dec. 27, 2011 Silicon Valley Bank [Member] Loan and Security Agreement [Member]	Jun. 30, 2012 Silicon Valley Bank [Member] Restated Loan Agreement [Member]	Jun. 29, 2012 Silicon Valley Bank [Member] Restated Loan Agreement [Member]	Jun. 30, 2010 Silicon Valley Bank [Member] Loan and Security Agreement with Partners for Growth Three [Member]	Jun. 30, 2012 Partners for Growth [Member]	Jun. 30, 2012 Partners for Growth [Member] Loan and Security Agreement [Member]	Dec. 27, 2011 Partners for Growth [Member] Loan and Security Agreement [Member]	Dec. 27, 2011 Partners for Growth [Member] Restated Loan Agreement [Member]	Jun. 30, 2012 Partners for Growth [Member] Loan and Security Agreement with Partners for Growth Three [Member]	Jun. 30, 2010 Partners for Growth [Member] Loan and Security Agreement with Partners for Growth Three [Member]	Jun. 30, 2012 PFG Equity Investors LLC [Member]	Dec. 27, 2011 PFG Equity Investors LLC [Member]	Jun. 30, 2010 PFG Equity Investors LLC [Member] Loan and Security Agreement with Partners for Growth Three [Member]
Common stock warrants (Textual) [Abstract]
Purchase of common stock	82,856		147,330	12,760		24,900		18,649		71,307		23,151			66,299		3,396		9,724
Exercise price per share					9.796		9.33		9.652				9.33	9.652				9.33
Fair value of warrants				$ 91,000		$ 136,000		$ 125,000			$ 145,000
Warrants issued, price range	$ 9.65		$ 5.43							$ 5.43						$ 5.43
Weighted average fair value of warrants	6,000	0
Value of exercisable warrants		97,000
Value of warrants vested		216,000
Aggregate intrinsic value	$ 2,167,000	$ 15,267,000	$ 0