Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Assets
Collateral pledged	$ 1,305	$ 1,365
State Tax Credits Held For Sale, Fair Value Disclosure	0	400
Debt issuance costs	$ 1,005	$ 1,136
Shareholders' equity:
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	23,938,994	23,781,112
Treasury stock, shares	1,127,105	691,673