Interim Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Dec. 31, 2020	15,369,745
Balance at Dec. 31, 2020	$ 153	$ 226,943	$ 563,024	$ 5,057	$ 3,083	$ 798,260
Net income	0	0	21,267	0	41	21,308
Other comprehensive loss	0	0	0	(1,922)	0	(1,922)
Stock–based compensation	$ 0	496	0	0	0	496
Shares sold – options exercised (in shares)	24,331
Shares sold – options exercised	$ 1	326	0	0	0	327
Repurchase of common shares (in shares)	(3,936)
Repurchase of common shares	$ 0	(278)	0	0	0	(278)
Dividends declared to common stockholders	$ 0	0	(8,003)	0	0	(8,003)
Balance (in shares) at Mar. 31, 2021	15,390,140
Balance at Mar. 31, 2021	$ 154	227,487	576,288	3,135	3,124	810,188
Balance (in shares) at Dec. 31, 2020	15,369,745
Balance at Dec. 31, 2020	$ 153	226,943	563,024	5,057	3,083	798,260
Net income						126,638
Other comprehensive loss						(1,769)
Balance (in shares) at Jun. 30, 2021	15,423,240
Balance at Jun. 30, 2021	$ 154	230,248	673,151	3,288	6,411	913,252
Balance (in shares) at Dec. 31, 2020	15,369,745
Balance at Dec. 31, 2020	$ 153	226,943	563,024	5,057	3,083	$ 798,260
Shares sold – options exercised (in shares)						541,736
Balance (in shares) at Dec. 31, 2021	15,452,033
Balance at Dec. 31, 2021	$ 154	232,167	669,078	1,605	5,456	$ 908,460
Balance (in shares) at Mar. 31, 2021	15,390,140
Balance at Mar. 31, 2021	$ 154	227,487	576,288	3,135	3,124	810,188
Net income	0	0	104,883	0	447	105,330
Equity contributed by noncontrolling interest	0	0	0	0	2,840	2,840
Other comprehensive loss	0	0	0	153	0	153
Stock–based compensation	$ 0	683	0	0	0	683
Shares sold – options exercised (in shares)	33,100
Shares sold – options exercised	$ 0	2,078	0	0	0	2,078
Dividends declared to common stockholders	$ 0	0	(8,020)	0	0	(8,020)
Balance (in shares) at Jun. 30, 2021	15,423,240
Balance at Jun. 30, 2021	$ 154	230,248	673,151	3,288	6,411	913,252
Balance (in shares) at Dec. 31, 2021	15,452,033
Balance at Dec. 31, 2021	$ 154	232,167	669,078	1,605	5,456	908,460
Net income	0	0	15,318	0	31	15,349
Equity contributed by noncontrolling interest	0	0	0	0	250	250
Other comprehensive loss	0	0	0	(5,060)	0	(5,060)
Stock–based compensation	$ 0	712	0	0	0	712
Shares sold – options exercised (in shares)	21,463
Shares sold – options exercised	$ 0	0	0	0	0	0
Repurchase of common shares (in shares)	(2,165)
Repurchase of common shares	$ 0	(146)	0	0	0	(146)
Dividends declared to common stockholders	$ 0	0	(8,509)	0	0	(8,509)
Balance (in shares) at Mar. 31, 2022	15,471,331
Balance at Mar. 31, 2022	$ 154	232,733	675,887	(3,455)	5,737	911,056
Balance (in shares) at Dec. 31, 2021	15,452,033
Balance at Dec. 31, 2021	$ 154	232,167	669,078	1,605	5,456	908,460
Net income						17,510
Other comprehensive loss						$ (8,588)
Shares sold – options exercised (in shares)						16,454
Balance (in shares) at Jun. 30, 2022	15,487,885
Balance at Jun. 30, 2022	$ 154	234,482	670,262	(6,983)	4,695	$ 902,610
Balance (in shares) at Mar. 31, 2022	15,471,331
Balance at Mar. 31, 2022	$ 154	232,733	675,887	(3,455)	5,737	911,056
Net income	0	0	3,203	0	(1,042)	2,161
Other comprehensive loss	0	0	0	(3,528)	0	(3,528)
Stock–based compensation	$ 0	629	0	0	0	629
Shares sold – options exercised (in shares)	16,554
Shares sold – options exercised	$ 0	1,120	0	0	0	1,120
Dividends declared to common stockholders	$ 0	0	(8,828)	0	0	(8,828)
Balance (in shares) at Jun. 30, 2022	15,487,885
Balance at Jun. 30, 2022	$ 154	$ 234,482	$ 670,262	$ (6,983)	$ 4,695	$ 902,610