Earnings Per Share (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Calculation of basic and diluted earnings per common share
Weighted average number of common shares used for basic earnings per share	26,654,518	26,454,390	26,621,662	26,423,456
Effect of potential dilutive shares	370,843	0	0	0
Weighted average number of common shares and potential dilutive shares used for diluted earnings per share	27,025,361	26,454,390	26,621,662	26,423,456
Anti-dilutive shares outstanding at period-end excluded from the above reconciliation.	4,246,924	4,461,537	4,487,876	4,414,623
Weighted average shares of non-vested restricted stock excluded from basic earnings per share	235,981	238,168	234,660	238,513