Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Earnings Per Share [Abstract]
Net income	$ 4,727	$ 4,201	$ 14,082	$ 9,652
Less allocation of earnings and dividends to participating securities	7	5	24	12
Net income allocated to common shareholders	$ 4,720	$ 4,196	$ 14,058	$ 9,640
Weighted average common shares outstanding, gross (in shares)	12,951,701	13,300,463	13,157,538	11,495,650
Less average participating securities (in shares)	18,751	15,260	22,404	15,260
Weighted average number of shares outstanding used in the calculation of basic earnings per common share (in shares)	12,932,950	13,285,203	13,135,134	11,480,390
Add dilutive effect of:
Stock options (in shares)	4,195	5,462	3,966	5,661
Adjusted weighted average number of shares outstanding used in the calculation of diluted earnings per common share (in shares)	12,937,145	13,290,665	13,139,100	11,486,051
Earnings per common share:
Basic (usd per share)	$ 0.36	$ 0.32	$ 1.07	$ 0.84
Diluted (usd per share)	$ 0.36	$ 0.32	$ 1.07	$ 0.84