Earnings Per Common Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Earnings Per Common Share [Abstract]
Net earnings available to common shareholders	$ 3,136	$ 2,486
Dividends on Series C convertible preferred stock	100	0
Net earnings available to common shareholders -diluted	$ 3,236	$ 2,486
Weighted average number of common shares outstanding used in computation of basic earnings per common share (in shares)	11,238,000	10,465,000
Effect of dilutive securities [Abstract]
Stock options (in shares)	50,000	8,000
Restricted stock (in shares)	13,000	7,000
Convertible preferred stock and warrants	565,000	0
Weighted average number of common shares outstanding plus effect of dilutive securities used in computation of diluted earnings per common share (in shares)	11,866,000	10,480,000
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)	18,331	18,331
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive shares excluded from computing diluted earnings per share (in shares)		104,384