Consolidated Statement of Changes in Stockholders' Equity (USD $) In Thousands		Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Unearned ESOP Shares [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income, Net of Tax [Member]	Noncontrolling Interest [Member]
Beginning balance at Dec. 31, 2012		$ 194,800	$ 163	$ 103,346	$ (18,847)	$ (3,132)	$ 89,065	$ 25,103	$ (898)
Net income		12,027					11,561		466
Other comprehensive results, net		(16,411)						(16,411)
Cash dividends at $0.28 per share	[1]	(4,915)					(4,915)
Six for five stock split, payment in lieu of fractional shares		(5)	29	(34)
Purchase of treasury stock, at cost (44,828 shares)		(615)			(615)
Reissuance of treasury stock for stock option exercises (111,077 shares)		1,186			1,258		(72)
Compensation expense ESOP and MRP		1,166		404		762
Additional ESOP shares purchased		(300)		(300)
Tax effect of compensatory stock options		40		40
Capital disbursement for noncontrolling interest		(649)							(649)
Ending balance at Sep. 30, 2013		$ 186,324	$ 192	$ 103,456	$ (18,204)	$ (2,370)	$ 95,639	$ 8,692	$ (1,081)

[1] Outstanding shares and per share data have been adjusted to reflect the six-for-five stock split declared April 16, 2013.