Securities (Details 3) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Expected amortization of the remaining unrealized gain
2014	$ 335
2015	274
2016	194
2017	115
2018	68
Thereafter	44
Total	$ 1,030

The amount of unrealized gain on debt securities to be recognized through amortization in following years.

No definition available.

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

- Definition

The amount of unrealized gain on debt securities to be recognized through amortization during the next twelve months.

+ References

No definition available.

+ Details

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

- Definition

The amount of unrealized gain on debt securities to be recognized through amortization after the fifth year following the end of the closest fiscal year.

+ References

No definition available.

+ Details

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

- Definition

The amount of unrealized gain on debt securities to be recognized through amortization in the fifth year following the end of the closest fiscal year.

+ References

No definition available.

+ Details

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

- Definition

The amount of unrealized gain on debt securities to be recognized through amortization in the fourth year following the end of the closest fiscal year.

+ References

No definition available.

+ Details

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

- Definition

The amount of unrealized gain on debt securities to be recognized through amortization in the third year following the end of the closest fiscal year.

+ References

No definition available.

+ Details

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

- Definition

The amount of unrealized gain on debt securities to be recognized through amortization in the second year following the end of the closest fiscal year.

+ References

No definition available.

+ Details

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

- Details

Name:	PSBQ_ExpectedAmortizationOfRemainingUnrealizedGainAbstract
Namespace Prefix:	PSBQ_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration