Earnings Per Common Share (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share [Abstract]
Net earnings available to common shareholders	$ 4,927	$ 3,946	$ 6,245	$ 10,624
Dividends on Series C preferred stock	92	90	185	190
Adjusted net earnings available to common shareholders	$ 5,019	$ 4,036	$ 6,430	$ 10,814
Weighted average number of common shares outstanding used in computation of basic earnings per common share	11,324,000	11,277,000	11,321,000	11,268,000
Effect of dilutive securities:
Stock options (in shares)	17,000	89,000	23,000	81,000
Convertible preferred stock and warrants (in shares)	509,000	546,000	510,000	543,000
Weighted average number of common shares outstanding plus effect of dilutive securities - used in computation of diluted earnings per common share (in shares)	11,850,000	11,912,000	11,854,000	11,892,000
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive shares excluded from computing diluted earnings per share (in shares)	129,822	7,355	129,822	7,355