Stock Based Compensation Schedule of Other Stock Option Plan Information (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Granted, in shares	55,590	75,518	10,404
Fair Value of Options Granted, Weighted Average Grant Date, in dollars per share	$ 5.67	$ 5.80	$ 5.25
Dividend Yield	3.90%	3.97%	4.20%
Expected Volatility	33.55%	35.30%	36.57%
Risk Free Interest Rate	1.57%	2.19%	1.31%
Expected Life, in years	7 years 7 months 28 days	6 years 10 months 6 days	6 years 8 months 15 days
Stock-Based Compensation Expense	$ 308	$ 360	$ 372
Compensation Costs for Non-vested Awards Not Yet Recognized	$ 500	$ 478	$ 420
Weighted Average Expected Vesting Period, In Years	2 years 1 month 15 days	1 year 8 months 5 days	1 year 5 months 13 days
Proceeds From Stock Options Exercised	$ 917	$ 1,454	$ 1,254
Tax Benefit for Disposition of Stock Options	59	25	23
Intrinsic Value of Stock Options Exercised	$ 250	$ 170	$ 267