Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Income [Abstract]
Net income before preferred stock dividends	$ 4,528	$ 2,636
Less: preferred stock dividends	(399)	(399)
Net income applicable to common shareholders	$ 4,129	$ 2,237
Shares [Abstract]
Weighted average shares outstanding (in shares)	20,431	20,445
Per Share Amount [Abstract]
Net income applicable to common shareholders (in dollars per share)	$ 0.20	$ 0.11