Stockholders' Equity Transactions (Detail) (USD $)			9 Months Ended
	Mar. 31, 2013	Jun. 30, 2012	Mar. 31, 2013 Common Stock [Member]	Mar. 31, 2013 Additional Paid-in Capital [Member]	Mar. 31, 2013 Treasury Stock [Member]
Beginning balance (in shares)			20,095,713		1,000,000
Beginning balance	$ 37,214,000	$ 37,723,000	$ 201,000	$ 14,080,000	$ (5,615,000)
Options exercised, shares			729,000
Options exercised			7,000	1,364,000
Shares surrendered and cancelled under option exercise			(27,900)
Shares surrendered and held in Treasury under option exercise					371,890
Shares surrendered and held in Treasury under option exercise					(1,257,000)
Shares repurchased and held in Treasury					(435,000)
Shares repurchased and held in Treasury					128,588
Ending balance (in shares)			20,796,813		1,500,478
Ending balance	$ 37,214,000	$ 37,723,000	$ 208,000	$ 15,444,000	$ (7,307,000)