PSB HOLDINGS, INC. ACQUISITION OF MARATHON STATE BANK (Details Narrative) (Marathon State Bank, USD $) In Thousands, unless otherwise specified	0 Months Ended
Jun. 14, 2012	Jun. 01, 2012
Marathon State Bank
Total fair value of assets acquired		$ 107,364
Accounting date	Jun. 01, 2012
Marathon State Bank book equity ratio as percent of assets prior to acquisition		6.00%
Percentage of tangible net book value	100.00%
Credit Markdown on Acquired Loan Portfolio	490
Credit Markdown on Acquired Loan Portfolio, percentage	2.05%
Purchased Impaired Loan Balance		310
Write-down, impaired loans	$ 21

The book equity ratio to a percentage of total assets.

No definition available.

Name:	PSBQ_BookEquityRatioAsPercentOfAssetsPriorToAcquisition
Namespace Prefix:	PSBQ_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Credit markdown recorded to write down acquired loans on purchase date.

+ References

No definition available.

+ Details

Name:	PSBQ_CreditMarkdownAcquiredLoans
Namespace Prefix:	PSBQ_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Credit markdown recorded to write down acquired loans on purchase date. Specifically, the percentage of the markdown against loan principal.

+ References

No definition available.

+ Details

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

- Definition

The percentage of tangible net book value paid in an acquisition.

+ References

No definition available.

+ Details

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

- Definition

The amount of purchased impaired loans written down.

+ References

No definition available.

+ Details

Name:	PSBQ_WritedownImpairedLoans
Namespace Prefix:	PSBQ_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 25

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=21917927&loc=d3e845-128460

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Acquisition Date

-URI http://asc.fasb.org/extlink&oid=6919109

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 25

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=21917927&loc=d3e848-128460

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

+ Details

Name:	us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of assets acquired at the acquisition date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472

+ Details

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

- Definition

Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (a)(4)

-URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5212-111524

+ Details

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