Consolidated Statements of Changes in Stockholders' Equity (USD $) In Thousands	Total	Employee Stock Ownership Plan [Member]	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Gain (Loss) [Member]	Treasury Stock [Member]	Common Stock Acquired by Deferred Compensation Plan [Member]	Deferred Compensation Plan Liability [Member]
Beginning Balance at Dec. 31, 2012	$ 219,792	$ (3,904)		$ 336	$ 262,704	$ 198,109	$ 49	$ (237,502)	$ (647)	$ 647
Net income	4,436					4,436
Other comprehensive income, net of tax	780						780
Stock awards	157				157
Treasury stock allocated to restricted stock plan					(274)	11		263
Purchased 254,340, 88,000 shares of common stock in 2013, 2014 respectively	(3,642)							(3,642)
Allocation of ESOP stock	120	72			48
Cash dividend $0.12 per share for 2013 and 2014 respectively	(2,089)					(2,089)
Purchase of stock for the deferred compensation plan									(4)	4
Ending Balance at Mar. 31, 2013	219,554	(3,832)		336	262,635	200,467	829	(240,881)	(651)	651
Beginning Balance at Dec. 31, 2013	214,350	(3,616)		336	263,319	206,201	(6,619)	(245,271)	(665)	665
Net income	4,707					4,707
Other comprehensive income, net of tax	44						44
Tax benefit of stock plans	50				50
Stock awards	180				180
Treasury stock allocated to restricted stock plan					661	(97)		(564)
Purchased 254,340, 88,000 shares of common stock in 2013, 2014 respectively	(1,522)							(1,522)
Allocation of ESOP stock	151	72			79
Cash dividend $0.12 per share for 2013 and 2014 respectively	(2,035)					(2,035)
Exercise of stock options	265					(44)		309
Sale of stock for the deferred compensation plan									341	(341)
Ending Balance at Mar. 31, 2014	$ 216,190	$ (3,544)		$ 336	$ 264,289	$ 208,732	$ (6,575)	$ (247,048)	$ (324)	$ 324