This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

No definition available.

+ Details

Name:	PSBQ_LoansReceivableImpairedFairValueDisclosure
Namespace Prefix:	PSBQ_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

+ References

No definition available.

+ Details

Name:	us-gaap_AssetsFairValueDisclosureNonrecurring
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Carrying amount as of the balance sheet date of all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings or defeasance; includes real and personal property; equity interests in corporations, partnerships, and joint ventures; and beneficial interests in trusts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 45

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4437-111522

+ Details

Name:	us-gaap_ForeclosedAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 860

-SubTopic 50

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122625-111746

+ Details

Name:	us-gaap_ServicingAssetAtFairValueAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

FAIR VALUE MEASUREMENTS (Details 3) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011
Foreclosed Assets	$ 1,336	$ 1,822	$ 1,774	$ 2,642	$ 3,108	$ 2,939
Mortgage servicing rights	1,604		1,233
Nonrecurring \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Impaired loans
Foreclosed Assets
Mortgage servicing rights
Total assets
Nonrecurring \| Siginficant Other Observable Inputs (Level 2)
Impaired loans	916		328
Foreclosed Assets	628		752
Mortgage servicing rights
Total assets	1,544		1,080
Nonrecurring \| Significant Unobservable Inputs (Level 3)
Impaired loans	2,042		2,645
Foreclosed Assets	708		1,022
Mortgage servicing rights	1,604		1,233
Total assets	4,354		4,900
Nonrecurring \| Estimate of Fair Value, Fair Value Disclosure
Impaired loans	2,958		2,973
Foreclosed Assets	1,336		1,774
Mortgage servicing rights	1,604		1,233
Total assets	$ 5,898		$ 5,980