Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Subsequent Events (Narrative) (Details) - shares	Aug. 06, 2015	Dec. 31, 1997
Subsequent Event [Line Items]
Number of shares authorized to repurchase (up to 1,000,000)		1,000,000
Subsequent Event
Subsequent Event [Line Items]
Date authorization to repurchase shares was revoked by the Board of Directors	Aug. 06, 2015