Earnings Per Share ("EPS") - Schedule of computation of basic and diluted earnings per share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Basic EPS:
Net income (loss)	$ 1,905	$ (2,360)	$ 2,728	$ 882	$ (455)	$ 3,610
Net income allocable to common shareholders	1,905		2,728		(455)	3,610
Less earnings allocated to participating securities	17		102		0	191
Earnings allocated to common shareholders	$ 1,888		$ 2,626		$ (455)	$ 3,419
Weighted average common shares outstanding (in shares)	23,502,400		22,619,993		23,488,721	22,224,376
Basic earnings (loss) per common share (in dollars per share)	$ 0.08		$ 0.12		$ (0.02)	$ 0.15
Diluted EPS:
Earnings allocated to common shareholders	$ 1,905		$ 2,728		$ (455)	$ 3,610
Add dilutive effects for assumed conversion of Series A preferred stock (in shares)	0		710,000		0	1,086,000
Weighted average diluted common shares outstanding (in shares)	23,713,486		23,615,958		23,488,721	23,581,106
Diluted earnings (loss) per common share (in dollars per share)	$ 0.08		$ 0.12		$ (0.02)	$ 0.15
Restricted stock
Diluted EPS:
Add dilutive effects of restricted stock grants and stock options (in shares)	111,000		170,000		0	154,000
Stock units
Diluted EPS:
Add dilutive effects of restricted stock grants and stock options (in shares)	100,000		0		0	0
Stock options
Diluted EPS:
Add dilutive effects of restricted stock grants and stock options (in shares)	0		116,000		0	117,000