Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Numerator for basic and diluted earnings per common share - Net income	$ 7,045	$ 6,696	$ 21,478	$ 19,860
Denominator:
Denominator for basic earnings per common share - weighted average common shares, including participating securities	8,976	9,238	8,980	9,247
Effect of warrants	0	0	0	99
Effect of employee stock options and restricted share activity	74	84	70	84
Denominator for diluted earnings per common share share	9,050	9,322	9,050	9,430
Basic earnings per common share	$ 0.78	$ 0.72	$ 2.39	$ 2.15
Diluted earnings per common share	$ 0.78	$ 0.72	$ 2.37	$ 2.11