Restrictions on Retained Earnings (Details Narrative) (USD $)	Dec. 31, 2012
Restrictions On Retained Earnings Details Narrative
Restricted dividends, upper threshold	$ 21,567

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