Consolidated Statements Of Shareholders Equity And Comprehensive Income (Parenthetical) (USD $)	3 Months Ended										12 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Jun. 30, 2012	Jun. 30, 2011
Dividends, per share	$ 0.075	$ 0.075	$ 0.025	$ 0.025	$ 0.000	$ 0.000	$ 0.000	$ 0.000	$ 0.000	$ 0.000	$ 0.30	$ 0.10
Common Stock [Member]
Dividends, per share											$ 0.00	$ 0.00