Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2017		Mar. 31, 2016		Sep. 29, 2016
Earnings Per Share [Abstract]
Stock dividend, percent						3.00%
Net Income		$ 6,631		$ 6,549
Basic, in shares		13,484	[1]	13,343	[2]
Basic Earnings, in dollars per share		$ 0.49	[1]	$ 0.49	[2]
Dilutive Average Shares Attributable to Stock Options	[1]	110		36
Diluted, in shares	[2]	13,594	[1]	13,379
Diluted Earnings, in dollars per share		$ 0.49	[1]	$ 0.49	[2]

[1] Cash dividends paid per share have been adjusted for the September 29, 2016 3.0% stock dividend.

[2] Share and Per Share Amounts have been restated for the September 29, 2016 3% stock dividend.