Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Numerator for basic and diluted earnings per common share - Net income	$ 6,696	$ 7,069	$ 19,860	$ 17,937
Denominator:
Denominator for basic earnings per common share - weighted average common shares, including participating securities	9,238	9,445	9,247	9,577
Effect of warrants	0	350	99	347
Effect of employee stock options and restricted share activity	84	108	84	107
Denominator for diluted earnings per common share	9,322	9,903	9,430	10,031
Basic earnings per common share	$ 0.72	$ 0.75	$ 2.15	$ 1.87
Diluted earnings per common share	$ 0.72	$ 0.71	$ 2.11	$ 1.79