Earnings Per Share (Details Narrative)	12 Months Ended
Dec. 31, 2012
Earnings Per Share Details Narrative
Stock Dividend - percentage of shares	5.00%

Percentage of shares that are to be paid in kind for dividends as shares.

No definition available.

Name:	PSBQ_StockDividendPercentage
Namespace Prefix:	PSBQ_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration