Share-based Compensation (Schedule of Information About Equity Plans) (Details)	Jun. 30, 2011
Shares outstanding	9,655,198
1995 Plan [Member]
Shares authorized for issuance	4,500,000
Shares outstanding	4,500,000
Shares available for grant
2001 Plan [Member]
Shares authorized for issuance	500,000
Shares outstanding	439,666
Shares available for grant	60,334
2005 Plan [Member]
Shares authorized for issuance	12,850,000
Shares outstanding	8,651,485
Shares available for grant	4,198,515
Combined [Member]
Shares authorized for issuance	17,850,000
Shares outstanding	13,591,151
Shares available for grant	4,258,849