Stock Options and Restricted Stock Awards (Details Textual) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended				12 Months Ended						12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2009	Jun. 30, 2012 Restricted Stock Awards [Member] Maximum [Member]	Jun. 30, 2012 Restricted Stock Awards [Member] Minimum [Member]	Jun. 30, 2012 2007 Equity Incentive Plan [Member]	Feb. 28, 2009 2007 Equity Incentive Plan [Member]	Jun. 30, 2012 1991 Stock Option Plan [Member]	Jun. 30, 2012 2003 Stock Option Plan [Member]	Jun. 30, 2012 2006 Equity Incentive Plan [Member]	Jun. 30, 2012 Employee Stock Purchase Plan [Member]	Jun. 30, 2013 Employee Stock Purchase Plan [Member]
Stock options and restricted stock awards (Textual) [Abstract]
Increase in number of shares available for grant							450,000
Common stock approved								2,509,969	485,250	2,458,600	794,641
Shares of common stock granted	613,301	50,723	110,173	84,838			1,941,000						180,709
Expiration period of options or shares							10 years				10 years
Vesting period					3 years	1 year	3 years				4 years
Increase in number of shares							970,500
Percentage of common shares increased							5.00%					1.00%
Vested options granted to employees after termination											90 days
Stock purchased period												6 months
Purchase price of stock in percentage												85.00%
Increase in number of shares												180,000
Number of shares purchased by employee												170,000
Average price of share purchased by employee												$ 8.34
Number of Shares added to plan												180,000
Stock options and restricted stock wards (Additional Textual) [Abstract]
Percentage of outstanding shares	2.20%
Options granted	0	1,092,500
Aggregate intrinsic value for vested and outstanding options	$ 1,624	$ 12,712	$ 0
Total aggregate intrinsic value of options exercised	770	736	30
Forfeiture rate	11.60%	10.70%	9.40%
Total compensation cost for non-vested awards not yet recognized	$ 7,767	$ 5,128	$ 4,226
Weighted-average period of compensation cost	2 years 5 months 9 days	2 years 3 months 7 days	1 year 7 days
Maximum period for payment on Restricted stock unit	30 days