Condensed Statements of Stockholders' Equity (unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balances (in shares)	35,399
Balances (in shares) at Dec. 31, 2021	35,399
Balances at Dec. 31, 2021	$ 354	$ 850,497	$ (82,754)	$ 768,097
Net income (loss)	0	0	(148,727)	(148,727)
Cash dividends declared	$ 0	(27,492)	0	(27,492)
Stock based awards and amortization (in shares)	25
Stock based awards and amortization	$ 0	540	0	540
Balances (in shares) at Mar. 31, 2022	35,424
Balances at Mar. 31, 2022	$ 354	823,545	(231,481)	592,418
Balances (in shares) at Dec. 31, 2021	35,399
Balances at Dec. 31, 2021	$ 354	850,497	(82,754)	768,097
Net income (loss)				$ (208,866)
Balances (in shares) at Jun. 30, 2022	35,251			35,250
Balances at Jun. 30, 2022	$ 352	797,630	(291,620)	$ 506,362
Balances (in shares) at Dec. 31, 2021	35,399
Balances at Dec. 31, 2021	$ 354	850,497	(82,754)	$ 768,097
Issuance of common stock pursuant to public offerings, net (in shares)				3,885,048
Issuance of common stock pursuant to public offerings, net				$ 40,580
Balances (in shares) at Dec. 31, 2022	36,765
Balances at Dec. 31, 2022	$ 368	779,602	(341,207)	438,763
Balances (in shares)	35,424
Balances (in shares) at Mar. 31, 2022	35,424
Balances at Mar. 31, 2022	$ 354	823,545	(231,481)	592,418
Net income (loss)	0	0	(60,139)	(60,139)
Cash dividends declared	$ 0	(23,936)	0	(23,936)
Stock based awards and amortization (in shares)	2
Stock based awards and amortization	$ 0	237	0	237
Shares repurchased and retired (in shares)	(175)
Shares repurchased and retired	$ (2)	(2,216)	0	$ (2,218)
Balances (in shares) at Jun. 30, 2022	35,251			35,250
Balances at Jun. 30, 2022	$ 352	797,630	(291,620)	$ 506,362
Balances (in shares)	35,251			35,250
Balances (in shares)	36,765
Balances (in shares) at Dec. 31, 2022	36,765
Balances at Dec. 31, 2022	$ 368	779,602	(341,207)	$ 438,763
Net income (loss)	0	0	3,530	3,530
Cash dividends declared	$ 0	(18,807)	0	(18,807)
Stock based awards and amortization (in shares)	4
Stock based awards and amortization	$ 0	181	0	181
Issuance of common stock pursuant to public offerings, net (in shares)	2,690
Issuance of common stock pursuant to public offerings, net	$ 26	31,631	0	31,657
Shares repurchased and retired (in shares)	(373)
Shares repurchased and retired	$ (3)	(3,960)	0	(3,963)
Balances (in shares) at Mar. 31, 2023	39,086
Balances at Mar. 31, 2023	$ 391	788,647	(337,677)	451,361
Balances (in shares) at Dec. 31, 2022	36,765
Balances at Dec. 31, 2022	$ 368	779,602	(341,207)	438,763
Net income (loss)				$ 13,779
Issuance of common stock pursuant to public offerings, net (in shares)				7,447,953
Issuance of common stock pursuant to public offerings, net				$ 79,012
Balances (in shares) at Jun. 30, 2023	43,897			43,897
Balances at Jun. 30, 2023	$ 439	817,074	(327,428)	$ 490,085
Balances (in shares)	39,086
Balances (in shares) at Mar. 31, 2023	39,086
Balances at Mar. 31, 2023	$ 391	788,647	(337,677)	451,361
Net income (loss)	0	0	10,249	10,249
Cash dividends declared	$ 0	(19,671)	0	(19,671)
Stock based awards and amortization (in shares)	53
Stock based awards and amortization	$ 1	790	0	791
Issuance of common stock pursuant to public offerings, net (in shares)	4,758
Issuance of common stock pursuant to public offerings, net	$ 47	47,308	0	47,355
Shares repurchased and retired (in shares)	0
Shares repurchased and retired	$ 0	0	0	$ 0
Balances (in shares) at Jun. 30, 2023	43,897			43,897
Balances at Jun. 30, 2023	$ 439	$ 817,074	$ (327,428)	$ 490,085
Balances (in shares)	43,897			43,897