Earnings Per Common Share (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Earnings Per Share [Abstract]
Net earnings available to common shareholders	$ 2,417	$ 4,298	$ 8,662	$ 14,922
Dividends on Series C preferred stock	92	94	277	284
Adjusted net earnings available to common shareholders	$ 2,509	$ 4,392	$ 8,939	$ 15,206
Weighted average number of common shares outstanding used in computation of basic earnings per common share	11,312,000	11,314,000	11,321,000	11,283,000
Effect of dilutive securities:
Stock options (in shares)	12,000	92,000	20,000	77,000
Convertible preferred stock and warrants (in shares)	507,000	549,000	507,000	544,000
Weighted average number of common shares outstanding plus effect of dilutive securities - used in computation of diluted earnings per common share (in shares)	11,831,000	11,955,000	11,848,000	11,904,000
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive shares excluded from computing diluted earnings per share (in shares)	234,206	7,355	11,250	24,855