Employee Stock Puchase Plan (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Employee Stock Puchase Plan [Abstract]
Purchase price of common stock - percentage of its fair market value	85.00%
Limitation of employee's eligible compensation	10.00%
Period shares purchased must be held before selling	1 year
Shares reserved for future issuance	67,888
Non-cash stock based compensation expense	$ 6,653	$ 22,000	$ 25,000
Common shares purchased	7,626	19,534	16,213
Average purchase price per share	$ 4.22	$ 3.05	$ 2.83