Earnings Per Common Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Common Share [Abstract]
Net earnings available to common shareholders	$ 4,298	$ 3,072	$ 14,922	$ 9,479
Dividends on Series C preferred stock	94	100	284	300
Adjusted net earnings available to common shareholders	$ 4,392	$ 3,172	$ 15,206	$ 9,779
Weighted average number of common shares outstanding used in computation of basic earnings per common share (in shares)	11,314,000	11,253,000	11,283,000	11,243,000
Effect of dilutive securities [Abstract]
Stock options (in shares)	92,000	51,000	77,000	47,000
Convertible preferred stock (in shares)	549,000	565,000	544,000	563,000
Weighted average number of common shares outstanding plus effect of dilutive securities - used in computation of diluted earnings per common share (in shares)	11,955,000	11,869,000	11,904,000	11,853,000
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)	7,355	134,611	24,855	134,611