CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Contributed Capital	Retained Earnings
Beginning balance at Dec. 31, 2016	$ 151,312	$ 422	$ 11,693	$ 139,197
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (losses) earnings	(482)			(482)
Dividends declared:
Common stock	(3,711)			(3,711)
Ending balance at Dec. 31, 2017	147,119	422	11,693	135,004
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (losses) earnings	2,945			2,945
Stock-based compensation expense	255		255
Dividends declared:
Common stock	(3,711)			(3,711)
Awards under LTIP	(10)			(10)
Ending balance at Dec. 31, 2018	146,598	422	11,948	134,228
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (losses) earnings	8,207			8,207
Stock-based compensation expense	478		478
Issuance of common shares for acquisition	392	1	391
Cancellation of shares withheld to cover taxes upon vesting of restricted awards	(39)		(39)
Dividends declared:
Common stock	(3,976)			(3,976)
Awards under LTIP	(19)			(19)
Ending balance at Dec. 31, 2019	$ 151,641	$ 423	$ 12,778	$ 138,440