Condensed Parent Company Only Financial Statements (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended												12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Expenses:
Interest expense on senior subordinated notes													$ 150	$ 184	$ 578
Recognition of income tax benefit													2,906	1,663	2,535
Net income	1,805	1,782	1,403	1,450	1,561	13	1,561	1,609	1,685	1,226	1,918	1,180	6,440	4,744	6,009
Parent Company [Member]
Income:
Dividends from Peoples State Bank													3,900	4,000	7,700
Dividends from other investments													6	6	5
Interest													6	5	10
Total income													3,912	4,011	7,715
Expenses:
Interest on other borrowings													27	54	0
Interest expense on senior subordinated notes													150	184	578
Transfer agent and shareholder communication													52	47	68
Other													85	136	348
Total expenses													654	762	1,336
Income before income taxes and equity in undistributed net income of Peoples State Bank													3,258	3,249	6,379
Recognition of income tax benefit													(251)	(293)	(431)
Net income before equity in undistributed net income of Peoples State Bank													3,509	3,542	6,810
Equity in undistributed net income of Peoples State Bank													2,931	1,202	(801)
Net income													$ 6,440	$ 4,744	$ 6,009