Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands		Total		Common Stock [Member]	Additional Paid-In Capital	Retained Earnings	Unallocated ESOP Shares	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Stockholders' Equity, Beginning Balance at Dec. 31, 2014		$ 200,926		$ 17,079	$ 239,721	$ 29,458	$ (1,450)	$ (7,166)	$ (76,716)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		5,855		0	0	5,855	0	0	0
Other Comprehensive Income		910	[1]	0	0	0	0	910	0
Cash Dividends Paid	[2]	(3,156)		0	0	(3,156)	0	0	0
Stock Options Exercised, Net		70		0	40	0	0	0	30
Shares Issued Under the Directors' Stock Plan		11		0	7	0	0	0	4
Shares Issued Under the Employee Stock Purchase Plan		111		0	68	0	0	0	43
Stock-Based Compensation Expense		82		0	82	0	0	0	0
Purchases of Treasury Stock		(57)		0	0	0	0	0	(57)
Allocation of ESOP Stock		213		0	(63)	0	(150)	0	0
Stockholders' Equity, Ending Balance at Mar. 31, 2015		204,965		17,079	239,981	32,157	(1,300)	(6,256)	(76,696)
Stockholders' Equity, Beginning Balance at Dec. 31, 2015		213,971		17,421	250,680	32,139	(1,100)	(7,972)	(77,197)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		6,549		0	0	6,549	0	0	0
Other Comprehensive Income		2,536	[1]	0	0	0	0	2,536	0
Cash Dividends Paid	[3]	(3,239)		0	0	(3,239)	0	0	0
Stock Options Exercised, Net		547		0	320	0	0	0	227
Shares Issued Under the Employee Stock Purchase Plan		112		0	69	0	0	0	43
Shares Issued for Dividend Reinvestment Plans		438		0	275	0	0	0	163
Stock-Based Compensation Expense		74		0	74	0	0	0	0
Tax Benefit for Disposition of Stock Options		21		0	21	0	0	0	0
Purchases of Treasury Stock		(527)		0	0	0	0	0	(527)
Allocation of ESOP Stock		221		0	(71)	0	(150)	0	0
Stockholders' Equity, Ending Balance at Mar. 31, 2016		$ 220,703		$ 17,421	$ 251,510	$ 35,449	$ (950)	$ (5,436)	$ (77,291)

[1] All amounts are net of tax. Amounts in parentheses indicate debits.

[2] Share and Per Share Amounts have been restated for the September 2015 2% stock dividend.

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