Earnings Per Share (Calculation of Earnings Per Common Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share [Abstract]
Net income	$ 4,391	$ 2,352	$ 8,449	$ 5,152
Weighted average shares outstanding - Basic (in shares)	12,744,000	12,681,000	12,730,000	12,676,000
Dilutive effect of common stock equivalents-options	13,000	21,000	13,000	21,000
Dilutive effect of common stock equivalents-restricted stock units		33,000		33,000
Weighted average shares outstanding - Diluted (in shares)	12,757,000	12,735,000	12,743,000	12,730,000
Earnings per common share - Basic (in dollars per share)	$ 0.34	$ 0.19	$ 0.66	$ 0.41
Earnings per common share - Diluted (in dollars per share)	$ 0.34	$ 0.19	$ 0.66	$ 0.41
Weighted average common stock excluded from calculation of diluted EPS	0	0	0	0