Consolidated Statements of Changes in Equity (USD $) In Thousands, unless otherwise specified	Total	Common Stock	Additional Paid in Capital	Treasury Stock	Common Stock Acquired by Benefit Plans	Retained Earnings	Accumulated Other Comprehensive Income, net
BALANCE at Dec. 31, 2011	$ 188,192	$ 146	$ 134,871	$ (19,822)	$ (11,541)	$ 77,971	$ 6,567
Increase (Decrease) in Stockholders' Equity
Purchase of treasury stock, net	(3,765)			(3,765)
Stock based compensation expense	279		279
Unallocated ESOP shares committed to employees	206		50		156
Issuance of stock for vested equity awards			(69)		76	(7)
Common stock issued for exercise of vested stock options	117		117
Tax benefit from exercise of stock options and vesting of restricted stock	29		29
Dividends paid ($0.06 and $0.04 per share for the three months ended March 31, 2013 and 2012, respectively)	(487)					(487)
Net income	1,187					1,187
Other comprehensive loss	(135)						(135)
BALANCE at Mar. 31, 2012	185,623	146	135,277	(23,587)	(11,309)	78,664	6,432
BALANCE at Dec. 31, 2012	181,465	146	136,132	(29,733)	(10,228)	80,608	4,540
Increase (Decrease) in Stockholders' Equity
Purchase of treasury stock, net	(1,729)			(1,729)
Stock based compensation expense	203		203
Unallocated ESOP shares committed to employees	273		118		155
Issuance of stock for vested equity awards			(68)		75	(7)
Common stock issued for exercise of vested stock options	51		51
Tax benefit from exercise of stock options and vesting of restricted stock	17		17
Dividends paid ($0.06 and $0.04 per share for the three months ended March 31, 2013 and 2012, respectively)	(704)					(704)
Net income	1,827					1,827
Other comprehensive loss	(1,984)						(1,984)
BALANCE at Mar. 31, 2013	$ 179,419	$ 146	$ 136,453	$ (31,462)	$ (9,998)	$ 81,724	$ 2,556