CONSOLIDATED STATEMENTS OF MEZZANINE AND STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands	Total	Common Stock Outstanding	Additional Paid-in Capital	Retained Earnings	Noncontrolling Interest	Noncontrolling Interest Mezzanine
Equity, beginning balance at Dec. 31, 2018	$ 181,544	$ 35	$ 162,723	$ 17,788	$ 998	$ 225,117
Equity, beginning balance (in shares) at Dec. 31, 2018		34,578,040
Net (loss) income	550			140	410	(3,000)
Purchase of treasury shares	0					(40)
Purchase of treasury shares (in shares)		(93,451)
Shares issued for exercise of options and warrants	140		140			155
Shares issued for exercise of options and warrants (in shares)		17,516
Share-based compensation	143		143			202
Share-based compensation (in shares)		1,599
Dividends	0					(10,000)
Equity, ending balance at Mar. 31, 2019	182,377	$ 35	163,006	17,928	1,408	212,434
Equity, ending balance (in shares) at Mar. 31, 2019		34,503,704
Equity, beginning balance at Dec. 31, 2019	192,335	$ 36	159,608	31,905	786	168,725
Equity, beginning balance (in shares) at Dec. 31, 2019		35,908,057
Net (loss) income	4,147			4,052	95	(1,161)
Purchase of treasury shares	(301)
Purchase of treasury shares (in shares)		(16,897)
Purchase of noncontrolling interest	0					(125)
Shares issued for exercise of options and warrants	722		722
Shares issued for exercise of options and warrants (in shares)		151,601
Share-based compensation	1,058		1,058
Dividends	0					(10,000)
Equity, ending balance at Mar. 31, 2020	$ 197,961	$ 36	$ 161,087	$ 35,957	$ 881	$ 157,439
Equity, ending balance (in shares) at Mar. 31, 2020		36,042,761