Consolidated Statement Of Shareholder's Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Earnings [Member]	Non-controlling Interests [Member]	Total
Beginning balance at Dec. 31, 2019	$ 744	$ 269,534	$ 145,847	$ 49,534	$ 465,659
Beginning balance, shares at Dec. 31, 2019	74,362,693
Net income			201	736	937
Dividends to shareholders			(9,667)		(9,667)
Stock repurchase, value	$ (19)	(11,722)			(11,741)
Stock repurchase, shares	(1,878,400)
Ending balance at Mar. 31, 2020	$ 725	257,812	136,381	50,270	445,188
Ending balance, shares at Mar. 31, 2020	72,484,293
Beginning balance at Dec. 31, 2020	$ 725	257,812	58,149	52,026	$ 368,712
Beginning balance, shares at Dec. 31, 2020					72,484,293
Net income			5,057	2,166	$ 7,223
Ending balance at Mar. 31, 2021	$ 725	$ 257,812	$ 63,206	$ 54,192	$ 375,935
Ending balance, shares at Mar. 31, 2021	72,484,293