Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	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 (in shares) at Dec. 31, 2021			96,774,000
Balance at Dec. 31, 2021			$ 10			$ 617,489			$ (64,436)			$ 553,063
Dividends declared ($0.025 per share)			0			0			(2,434)			(2,434)
Dividend equivalents declared on outstanding stock options ($0.025 per share)			$ 0			0			(250)			(250)
Exercise of warrants (in shares)			69,000
Exercise of warrants			$ 0			779			0			779
Shares issued upon options being exercised (in shares)			8,000
Shares issued upon options being exercised			$ 0			75			0			75
Compensation costs included in net income			0			2,614			0			2,614
Net income			0			0			(16,510)			(16,510)
Dividends declared ($0.025 per share)			(0)			(0)			2,434			2,434
Dividend equivalents declared on outstanding stock options ($0.025 per share)			(0)			(0)			250			250
Stock issuance costs			$ (0)			55			(0)			55
Stock issued for acquisition (in shares)			6,960,000
Stock issued for acquisition			$ 0			156,599			0			156,599
Stock issuance costs			$ 0			(55)			0			(55)
Balance (in shares) at Mar. 31, 2022			103,811,000
Balance at Mar. 31, 2022			$ 10			777,501			(83,630)			693,881
Balance (in shares) at Dec. 31, 2021			96,774,000
Balance at Dec. 31, 2021			$ 10			617,489			(64,436)			$ 553,063
Shares issued upon options being exercised (in shares)												12,000
Net income												$ 168,955
Balance (in shares) at Sep. 30, 2022			113,163,000
Balance at Sep. 30, 2022			$ 11			1,004,778			95,956			1,100,745
Balance (in shares) at Dec. 31, 2021			96,774,000
Balance at Dec. 31, 2021			$ 10			617,489			(64,436)			$ 553,063
Shares issued upon options being exercised (in shares)												12,000
Balance (in shares) at Dec. 31, 2022			113,165,000
Balance at Dec. 31, 2022			$ 11			1,008,896			160,740			$ 1,169,647
Balance (in shares) at Mar. 31, 2022			103,811,000
Balance at Mar. 31, 2022			$ 10			777,501			(83,630)			693,881
Dividends declared ($0.025 per share)			0			0			(2,630)			(2,630)
Dividend equivalents declared on outstanding stock options ($0.025 per share)			$ 0			0			(249)			(249)
Exercise of warrants (in shares)			897,000
Exercise of warrants			$ 0			6,971			0			6,971
Shares issued upon options being exercised (in shares)			4,000
Shares issued upon options being exercised			$ 0			45			0			45
Compensation costs included in net income			0			16,429			0			16,429
Net income			0			0			77,561			77,561
Restricted shares issued (in shares)	21,000	600,000
Restricted shares issued	$ 0	$ 0		$ 0	$ 0		$ 0	$ 0		$ 0	$ 0
Dividends declared ($0.025 per share)			(0)			(0)			2,630			2,630
Dividend equivalents declared on outstanding stock options ($0.025 per share)			(0)			(0)			249			249
Stock issuance costs			$ (0)			3			(0)			3
Stock issued for acquisition (in shares)			3,894,000
Stock issued for acquisition			$ 1			108,382			0			108,383
Stock issuance costs			$ 0			(3)			0			(3)
Balance (in shares) at Jun. 30, 2022			109,227,000
Balance at Jun. 30, 2022			$ 11			909,325			(8,948)			900,388
Dividends declared ($0.025 per share)			0			0			(2,730)			(2,730)
Dividend equivalents declared on outstanding stock options ($0.025 per share)			$ 0			0			270			270
Exercise of warrants (in shares)			3,000
Exercise of warrants			$ 0			30			0			30
Compensation costs included in net income						10,655			0			10,655
Net income									107,904			107,904
Dividends declared ($0.025 per share)			0			0			2,730			2,730
Dividend equivalents declared on outstanding stock options ($0.025 per share)			$ 0			0			(270)			(270)
Stock issued in public offering (in shares)			3,933,000
Stock issued in public offering			$ 0			85,000						85,000
Stock issuance costs			0			232			0			232
Stock issuance costs			$ 0			(232)			0			(232)
Balance (in shares) at Sep. 30, 2022			113,163,000
Balance at Sep. 30, 2022			$ 11			1,004,778			95,956			1,100,745
Balance (in shares) at Dec. 31, 2022			113,165,000
Balance at Dec. 31, 2022			$ 11			1,008,896			160,740			1,169,647
Dividends declared ($0.025 per share)			0			0			(2,829)			(2,829)
Dividend equivalents declared on outstanding stock options ($0.025 per share)			$ 0			0			(288)			(288)
Exercise of warrants (in shares)			0
Exercise of warrants			$ 0			2			0			2
Shares issued upon options being exercised (in shares)			12,000
Shares issued upon options being exercised			$ 0			148			0			148
Compensation costs included in net income			0			4,054			0			4,054
Net income			0			0			50,257			50,257
Dividends declared ($0.025 per share)			(0)			(0)			2,829			2,829
Dividend equivalents declared on outstanding stock options ($0.025 per share)			$ (0)			(0)			288			288
Balance (in shares) at Mar. 31, 2023			113,177,000
Balance at Mar. 31, 2023			$ 11			1,013,100			207,880			1,220,991
Balance (in shares) at Dec. 31, 2022			113,165,000
Balance at Dec. 31, 2022			$ 11			1,008,896			160,740			$ 1,169,647
Shares issued upon options being exercised (in shares)												11,834
Net income												$ 120,862
Balance (in shares) at Sep. 30, 2023			128,221,000
Balance at Sep. 30, 2023			$ 13			1,183,262			271,827			1,455,102
Balance (in shares) at Mar. 31, 2023			113,177,000
Balance at Mar. 31, 2023			$ 11			1,013,100			207,880			1,220,991
Dividends declared ($0.025 per share)			0			0			(2,830)			(2,830)
Dividend equivalents declared on outstanding stock options ($0.025 per share)			$ 0			0			(287)			(287)
Exercise of warrants (in shares)			150,000
Exercise of warrants			$ 0			1,726			0			1,726
Compensation costs included in net income			0			3,984			0			3,984
Net income			0			0			31,826			31,826
Restricted shares issued (in shares)	59,000
Restricted shares issued	$ 0			$ 0			$ 0			$ 0
Dividends declared ($0.025 per share)			(0)			(0)			2,830			2,830
Dividend equivalents declared on outstanding stock options ($0.025 per share)			$ (0)			(0)			287			287
Balance (in shares) at Jun. 30, 2023			113,386,000
Balance at Jun. 30, 2023			$ 11			1,018,810			236,589			1,255,410
Dividends declared ($0.025 per share)			0			0			(3,205)			(3,205)
Dividend equivalents declared on outstanding stock options ($0.025 per share)			0			0			(336)			(336)
Compensation costs included in net income			0			14,057			0			14,057
Net income			0			0			38,779			38,779
Dividends declared ($0.025 per share)			0			0			3,205			3,205
Dividend equivalents declared on outstanding stock options ($0.025 per share)			$ 0			0			336			336
Stock issued in public offering (in shares)			14,835,000
Stock issued in public offering			$ 2			155,766			0			155,768
Stock issuance costs			0			5,371			0			5,371
Stock issuance costs			$ 0			(5,371)			0			(5,371)
Balance (in shares) at Sep. 30, 2023			128,221,000
Balance at Sep. 30, 2023			$ 13			$ 1,183,262			$ 271,827			$ 1,455,102