Restrictions on Retained Earnings (Details Narrative) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Restrictions On Retained Earnings Details Narrative
Restricted dividends, upper threshold	$ 21,931

The upper limit on dividends that may be distributed or declared, to maintain well-capitalized regulatory status.

No definition available.

Name:	PSBQ_RestrictedDividendsUpperThreshold
Namespace Prefix:	PSBQ_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant