Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data	Sep. 30, 2011	Jun. 30, 2011
Consolidated Balance Sheets [Abstract]
Allowance for doubtful accounts receivable	$ 1,354	$ 766
Preferred stock, par value	$ 0	$ 0
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	69,200,592	69,077,492
Treasury stock, shares	6,492,211	6,393,659