Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings (Accumulated Deficit)
Beginning Balance at Dec. 31, 2018	$ 274,827	$ 118	$ 286,281	$ (1,870)	$ (9,702)
Purchase of treasury shares	(260)	0	0	(260)	0
Issuance of restricted stock	0	0	0	0	0
Amortization of share-based compensation	1,849	0	1,849	0	0
Net Income (Loss)	16,053	0	0	0	16,053
Ending Balance at Mar. 31, 2019	292,469	118	288,130	(2,130)	6,351
Beginning Balance at Dec. 31, 2019	395,707	119	292,916	(2,282)	104,954
Purchase of treasury shares	(83)	0	0	(83)	0
Issuance of restricted stock	0	1	(1)	0	0
Amortization of share-based compensation	1,335	0	1,335	0	0
Net Income (Loss)	(5,858)	0	0	0	(5,858)
Ending Balance at Mar. 31, 2020	$ 391,101	$ 120	$ 294,250	$ (2,365)	$ 99,096