Consolidated Statements of Stockholders' Equity (USD $) In Thousands	Total	Common Stock	Additional Paid in Capital	Retained Earnings	Unallocated ESOP Shares	Accumulated Other Comprensive Income (Loss)	Treasury Stock
Beginning Balance at Dec. 31, 2010	$ 152,259	$ 15,626	$ 191,068	$ 24,577	$ (2,876)	$ (6,423)	$ (69,713)
Net Income	5,281	0	0	5,281	0	0	0
Other Comprehensive (Loss) Income	984	0	0	0	0	984	0
Cash Dividends Paid	(2,838)	0	0	(2,838)	0	0	0
Stock Options Exercised	314	0	183	0	0	0	131
Shares Issued Under the Employee Stock Purchase Plan	115	0	74	0	0	0	41
Treasury Shares Issued for Dividend Reinvestment Plans	450	0	281	0	0	0	169
Stock-Based Compensation Expense	82	0	82	0	0	0	0
Purchases of Treasury Stock	(752)	0	0	0	0	0	(752)
Acquisition of Subsidiary	3,060	0	1,988	0	0	0	1,072
Allocation of ESOP Stock	233	0	57	0	176	0	0
Ending Balance at Mar. 31, 2011	159,188	15,626	193,733	27,020	(2,700)	(5,439)	(69,052)
Beginning Balance at Dec. 31, 2011	166,385	16,094	207,600	23,947	(2,500)	(6,695)	(72,061)
Net Income	5,288	0	0	5,288	0	0	0
Other Comprehensive (Loss) Income	(177)	0	0	0	0	(177)	0
Cash Dividends Paid	(2,944)	0	0	(2,944)	0	0	0
Stock Options Exercised	1,149	0	627	0	0	0	522
Shares Issued Under the Employee Stock Purchase Plan	107	0	62	0	0	0	45
Treasury Shares Issued for Dividend Reinvestment Plans	464	0	275	0	0	0	189
Stock-Based Compensation Expense	99	0	99	0	0	0	0
Tax Benefit for Disposition of Stock Options	53	0	53	0	0	0	0
Purchases of Treasury Stock	(2,237)	0	0	0	0	0	(2,237)
Acquisition of Subsidiary	91	0	54	0	0	0	37
Allocation of ESOP Stock	188	0	38	0	150	0	0
Ending Balance at Mar. 31, 2012	$ 168,466	$ 16,094	$ 208,808	$ 26,291	$ (2,350)	$ (6,872)	$ (73,505)