Loans (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance for loan losses:
Allowance for loan losses, Beginning Balance	$ 6,783	$ 7,431	$ 7,941
Provision (credit)	560us-gaap_ProvisionForLoanAndLeaseLosses	4,015us-gaap_ProvisionForLoanAndLeaseLosses	785us-gaap_ProvisionForLoanAndLeaseLosses
Recoveries	35	80	37
Charge offs	(969)	(4,743)	(1,332)
Allowance for loan losses, Ending balance	6,409	6,783	7,431
Individually evaluated for impairment	2,258	2,108	2,434
Collectively evaluated for impairment	4,151	4,675	4,997
Loans receivable (gross):
Individually evaluated for impairment	19,148	15,775	12,439
Collectively evaluated for impairment	519,687	507,468	479,791
Commercial [Member]
Allowance for loan losses:
Allowance for loan losses, Beginning Balance	2,828	3,014	3,406
Provision (credit)	(716)	3,435	(270)
Recoveries	4	29	6
Charge offs	(215)	(3,650)	(128)
Allowance for loan losses, Ending balance	1,901	2,828	3,014
Individually evaluated for impairment	976	1,167	1,327
Collectively evaluated for impairment	925	1,661	1,687
Loans receivable (gross):
Individually evaluated for impairment	10,542	8,102	5,263
Collectively evaluated for impairment	124,226	122,118	127,370
Commercial Real Estate [Member]
Allowance for loan losses:
Allowance for loan losses, Beginning Balance	2,653	2,803	3,175
Provision (credit)	(321)	(9)	142
Recoveries	3	33	4
Charge offs	(41)	(174)	(518)
Allowance for loan losses, Ending balance	2,294	2,653	2,803
Individually evaluated for impairment	511	695	674
Collectively evaluated for impairment	1,783	1,958	2,129
Loans receivable (gross):
Individually evaluated for impairment	5,378	5,527	4,204
Collectively evaluated for impairment	229,487	220,995	208,096
Residential Real Estate [Member]
Allowance for loan losses:
Allowance for loan losses, Beginning Balance	1,223	1,511	1,242
Provision (credit)	1,564	556	877
Recoveries	19	6	21
Charge offs	(694)	(850)	(629)
Allowance for loan losses, Ending balance	2,112	1,223	1,511
Individually evaluated for impairment	746	228	407
Collectively evaluated for impairment	1,366	995	1,104
Loans receivable (gross):
Individually evaluated for impairment	3,203	2,129	2,946
Collectively evaluated for impairment	162,372	160,805	139,636
Consumer [Member]
Allowance for loan losses:
Allowance for loan losses, Beginning Balance	79	103	118
Provision (credit)	33	33	36
Recoveries	9	12	6
Charge offs	(19)	(69)	(57)
Allowance for loan losses, Ending balance	102	79	103
Individually evaluated for impairment	25	18	26
Collectively evaluated for impairment	77	61	77
Loans receivable (gross):
Individually evaluated for impairment	25	17	26
Collectively evaluated for impairment	3,602	3,550	4,689
Unallocated [Member]
Allowance for loan losses:
Allowance for loan losses, Beginning Balance		0	0
Provision (credit)		0	0
Recoveries		0	0
Charge offs		0	0
Allowance for loan losses, Ending balance			0
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		0	0
Loans receivable (gross):
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		$ 0	$ 0

PSB HOLDINGS INC /WI/ 10-K