PSB HOLDINGS, INC. ACQUISITION OF MARATHON STATE BANK (Details1) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Pro Forma with Marathon State Bank
Net Interest Income	$ 5,422	$ 5,163	$ 15,940	$ 15,534
Noninterest Income	1,411	1,444	4,349	5,027
Net Income	13	1,226	3,183	4,370
Earnings Per Share	$ 0.01	$ 0.74	$ 1.93	$ 2.63
PSB Holdings, Inc.
Pro Forma with Marathon State Bank
Net Interest Income		4,813		14,376
Noninterest Income		1,436		4,147
Net Income		1,358		3,902
Earnings Per Share		$ 0.82		$ 2.35
Marathon State Bank
Pro Forma with Marathon State Bank
Net Interest Income		350		1,158
Noninterest Income		8		880
Net Income		$ (132)		$ 468
Earnings Per Share		$ (0.08)		$ 0.28