Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)	Common Stock [Member] Outside Directors [Member]	Common Stock [Member] Employee Directors [Member]	Common Stock [Member]	Additional Paid-in Capital [Member] Outside Directors [Member]	Additional Paid-in Capital [Member] Employee Directors [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member] Outside Directors [Member]	Retained Earnings [Member] Employee Directors [Member]	Retained Earnings [Member]	Outside Directors [Member]	Employee Directors [Member]	Total
Balance, December 31, 2021 (in shares) at Dec. 31, 2020			91,968,000
Balance, December 31, 2021 at Dec. 31, 2020			$ 9,000			$ 581,426,000			$ (107,209,000)			$ 474,226,000
Exercise of warrants (in shares)			554,000
Exercise of warrants			$ 0			5,466,000			0			5,466,000
Shares issued upon options being exercised (in shares)			154,000
Shares issued upon options being exercised			$ 0			1,574,000			0			1,574,000
Compensation costs included in net income			0			966,000			0			966,000
Net income			$ 0			0			4,744,000			4,744,000
Balance (in shares) at Mar. 31, 2021			92,676,000
Balance at Mar. 31, 2021			$ 9,000			589,432,000			(102,465,000)			486,976,000
Balance, December 31, 2021 (in shares) at Dec. 31, 2020			91,968,000
Balance, December 31, 2021 at Dec. 31, 2020			$ 9,000			581,426,000			(107,209,000)			474,226,000
Net income												18,534,000
Balance (in shares) at Sep. 30, 2021			92,744,000
Balance at Sep. 30, 2021			$ 9,000			591,360,000			(101,461,000)			489,908,000
Balance, December 31, 2021 (in shares) at Dec. 31, 2020			91,968,000
Balance, December 31, 2021 at Dec. 31, 2020			$ 9,000			581,426,000			(107,209,000)			$ 474,226,000
Shares issued upon options being exercised (in shares)												154,268
Balance (in shares) at Dec. 31, 2021			96,774,000
Balance at Dec. 31, 2021			$ 10,000			617,489,000			(64,436,000)			$ 553,063,000
Balance, December 31, 2021 (in shares) at Mar. 31, 2021			92,676,000
Balance, December 31, 2021 at Mar. 31, 2021			$ 9,000			589,432,000			(102,465,000)			486,976,000
Compensation costs included in net income			0			1,023,000			0			1,023,000
Net income			$ 0			0			5,743,000			5,743,000
Restricted shares issued to outside directors (in shares)	53,000
Restricted shares issued to outside directors	$ 0			$ 0			$ 0			$ 0
Balance (in shares) at Jun. 30, 2021			92,729,000
Balance at Jun. 30, 2021			$ 9,000			590,455,000			(96,722,000)			493,742,000
Dividends declared ($0.025 per share)			0						(11,593,000)			(11,593,000)
Dividend equivalents declared on outstanding stock options ($0.025 per share)			$ 0						(1,193,000)			(1,193,000)
Compensation costs included in net income						905,000						905,000
Net income									8,047,000			8,047,000
Restricted shares issued to outside directors (in shares)	15,000
Balance (in shares) at Sep. 30, 2021			92,744,000
Balance at Sep. 30, 2021			$ 9,000			591,360,000			(101,461,000)			489,908,000
Balance, December 31, 2021 (in shares) at Dec. 31, 2021			96,774,000
Balance, December 31, 2021 at Dec. 31, 2021			$ 10,000			617,489,000			(64,436,000)			553,063,000
Exercise of warrants (in shares)			69,000
Dividends declared ($0.025 per share)			$ 0			0			(2,434,000)			(2,434,000)
Exercise of warrants			0			779,000			0			779,000
Dividend equivalents declared on outstanding stock options ($0.025 per share)			$ 0			0			(250,000)			(250,000)
Shares issued upon options being exercised (in shares)			8,000
Shares issued upon options being exercised			$ 0			75,000			0			75,000
Stock issued for acquisition (in shares)			6,960,000
Stock issued for acquisition			$ 0			156,599,000			0			156,599,000
Compensation costs included in net income			0			2,614,000			0			2,614,000
Stock issuance costs			0			(55,000)			0			(55,000)
Net income			$ 0			0			(16,510,000)			(16,510,000)
Balance (in shares) at Mar. 31, 2022			103,811,000
Balance at Mar. 31, 2022			$ 10,000			777,501,000			(83,630,000)			693,881,000
Balance, December 31, 2021 (in shares) at Dec. 31, 2021			96,774,000
Balance, December 31, 2021 at Dec. 31, 2021			$ 10,000			617,489,000			(64,436,000)			$ 553,063,000
Shares issued upon options being exercised (in shares)												12,000
Net income												$ 168,955,000
Balance (in shares) at Sep. 30, 2022			113,163,000
Balance at Sep. 30, 2022			$ 11,000			1,004,778,000			95,956,000			1,100,745,000
Balance, December 31, 2021 (in shares) at Mar. 31, 2022			103,811,000
Balance, December 31, 2021 at Mar. 31, 2022			$ 10,000			777,501,000			(83,630,000)			693,881,000
Exercise of warrants (in shares)			897,000
Dividends declared ($0.025 per share)			$ 0			0			(2,630,000)			(2,630,000)
Exercise of warrants			0			6,971,000			0			6,971,000
Dividend equivalents declared on outstanding stock options ($0.025 per share)			$ 0			0			(249,000)			(249,000)
Shares issued upon options being exercised (in shares)			4,000
Shares issued upon options being exercised			$ 0			45,000			0			45,000
Stock issued for acquisition (in shares)			3,894,000
Stock issued for acquisition			$ 1,000			108,382,000			0			108,383,000
Compensation costs included in net income			0			16,429,000			0			16,429,000
Stock issuance costs			0			(3,000)			0			(3,000)
Net income			$ 0			0			77,561,000			77,561,000
Restricted shares issued to outside directors (in shares)	21,000	600,000
Restricted shares issued to outside directors	$ 0	$ 0		$ 0	$ 0		$ 0	$ 0		$ 0	$ 0
Balance (in shares) at Jun. 30, 2022			109,227,000
Balance at Jun. 30, 2022			$ 11,000			909,325,000			(8,948,000)			900,388,000
Exercise of warrants (in shares)			3,000
Dividends declared ($0.025 per share)			$ 0			0			(2,730,000)			(2,730,000)
Exercise of warrants			0			30,000			0			30,000
Dividend equivalents declared on outstanding stock options ($0.025 per share)			$ 0			0			(270,000)			(270,000)
Shares issued upon options being exercised (in shares)			0
Shares issued upon options being exercised			$ 0			0			0			0
Compensation costs included in net income			0			10,655,000			0			10,655,000
Stock issuance costs			0			(232,000)			0			(232,000)
Net income			$ 0			0			107,904,000			107,904,000
Balance (in shares) at Sep. 30, 2022			113,163,000
Balance at Sep. 30, 2022			$ 11,000			1,004,778,000			$ 95,956,000			1,100,745,000
Stock issued in private placement (in shares)			3,933,000
Stock Issued During Period, Value, New Issues			$ 0			$ 85,000						$ 85,000,000