Condensed Parent Company Only Financial Statements (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012	Dec. 31, 2011
Assets
Cash and due from banks	$ 18,073	$ 13,800
Other assets	3,897	3,901
TOTAL ASSETS	734,367	711,541
Liabilities and Stockholders' Equity
Other borrowings	10,324	20,441
Senior subordinated notes	4,000	4,000
Junior subordinated debentures	7,732	7,732
Total stockholders' equity	61,461	56,753	56,012	54,447	50,362
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	734,367	711,541
Parent Company [Member]
Assets
Cash and due from banks	3,826	3,502
Investment in Peoples State Bank	70,161	66,801
Other assets	747	840
TOTAL ASSETS	74,734	71,143
Liabilities and Stockholders' Equity
Accrued dividends payable	652	644
Other borrowings	500	1,500
Senior subordinated notes	4,000	4,000
Junior subordinated debentures	7,732	7,732
Other liabilities	389	514
Total stockholders' equity	61,461	56,753
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 74,734	$ 71,143