Repurchases Of Company Common Stock (Details)	Jun. 30, 2012	Jan. 22, 2008
Repurchases Of Company Common Stock [Abstract]
Percentage of common shares included in repurchase program		5.00%
Shares authorized for stock repurchase program		168,498
Shares remaining to be purchased under stock repurchase program	156,612

The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

No definition available.

Name:	us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant