CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY AND COMPREHENSIVE INCOME (USD $) In Thousands, except Share data	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total	Comprehensive Income [Member]
Balance, December 31, 2008 - Total Shareholders' Equity at Dec. 31, 2008	$ 1,299	$ 11,504	$ 18,220	$ (1,274)	$ 29,749
Balance (in shares) at Dec. 31, 2008	12,992,376
Employee Stock Plans	4	1,101			1,105
Employee Stock Plans (in shares)	36,864
Directors Stock Plans	3	101			104
Directors Stock Plans (in shares)	33,121
Dividend Reinvestment Plan	4	269			273
Dividend Reinvestment Plan (in shares)	38,207
Net Income			12,102		12,102	12,102
Dividends Paid			(6,785)		(6,785)
Other Comprehensive Loss, Net of Income Taxes				(2,002)	(2,002)	(2,002)
Total Comprehensive Income						10,100
Balance at Dec. 31, 2009	1,310	12,975	23,537	(3,276)	34,546
Balance (in shares) at Dec. 31, 2009	13,100,568
Employee Stock Plans	14	851			865
Employee Stock Plans (in shares)	136,249
Directors Stock Plans	3	259			262
Directors Stock Plans (in shares)	31,855
Dividend Reinvestment Plan	3	243			246
Dividend Reinvestment Plan (in shares)	29,954
Net Income			12,592		12,592	12,592
Dividends Paid			(6,940)		(6,940)
Other Comprehensive Loss, Net of Income Taxes				(267)	(267)	(267)
Total Comprehensive Income						12,325
Balance at Dec. 31, 2010	1,330	14,328	29,189	(3,543)	41,304
Balance (in shares) at Dec. 31, 2010	13,298,626				13,298,626
Employee Stock Plans	8	1,154			1,162
Employee Stock Plans (in shares)	80,775
Directors Stock Plans	2	250			252
Directors Stock Plans (in shares)	24,834
Dividend Reinvestment Plan	3	273			276
Dividend Reinvestment Plan (in shares)	28,189
Stock Repurchase	(3)	(322)			(325)
Stock Repurchase (in shares)	(36,248)
Net Income			8,401		8,401	8,401
Dividends Paid			(7,281)		(7,281)
Other Comprehensive Loss, Net of Income Taxes				(592)	(592)	(592)
Total Comprehensive Income						7,809
Balance at Dec. 31, 2011	$ 1,340	$ 15,683	$ 30,309	$ (4,135)	$ 43,197
Balance (in shares) at Dec. 31, 2011	13,396,176				13,396,176