UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Cumulative Effect, Period of Adoption, Adjustment
Beginning balance (in shares) at Dec. 31, 2022		12,843,157
Beginning balance at Dec. 31, 2022	$ 279,929	$ 12	$ 4,430,922	$ (4,151,005)	$ (9,683)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	35		35
Issuance of common stock upon vesting of restricted stock (in shares)		16,008
Repurchases of common stock in open market (in shares)		(28,766)
Repurchases of common stock in open market	(531)		(531)
Net income	4,635			4,635
Ending balance at Mar. 31, 2023	274,385	$ 12	4,430,426	(4,156,053)
Ending balance (in shares) at Mar. 31, 2023		12,830,399
Beginning balance (in shares) at Dec. 31, 2022		12,843,157
Beginning balance at Dec. 31, 2022	279,929	$ 12	4,430,922	(4,151,005)	$ (9,683)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net settlement for employee taxes on stock options	0
Net income	13,043
Ending balance at Sep. 30, 2023	277,565	$ 12	4,425,198	(4,147,645)
Ending balance (in shares) at Sep. 30, 2023		12,510,776
Beginning balance (in shares) at Mar. 31, 2023		12,830,399
Beginning balance at Mar. 31, 2023	274,385	$ 12	4,430,426	(4,156,053)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	164		164
Issuance of common stock upon vesting of restricted stock (in shares)		8,612
Repurchases of common stock in open market (in shares)		(272,492)
Repurchases of common stock in open market	(4,599)		(4,599)
Net income	3,934			3,934
Ending balance at Jun. 30, 2023	273,884	$ 12	4,425,991	(4,152,119)
Ending balance (in shares) at Jun. 30, 2023		12,566,519
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	170		170
Issuance of common stock upon vesting of restricted stock (in shares)		4,592
Repurchases of common stock in open market (in shares)		(60,335)
Repurchases of common stock in open market	(963)		(963)
Net income	4,474			4,474
Ending balance at Sep. 30, 2023	$ 277,565	$ 12	4,425,198	(4,147,645)
Ending balance (in shares) at Sep. 30, 2023		12,510,776
Beginning balance (in shares) at Dec. 31, 2023	12,497,770	12,497,770
Beginning balance at Dec. 31, 2023	$ 280,315	$ 12	4,425,104	(4,144,801)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	111		111
Forfeiture of unvested restricted stock (in shares)		(6,446)
Issuance of common stock upon vesting of restricted stock (in shares)		48,918
Repurchases of common stock in open market (in shares)		(58,298)
Repurchases of common stock in open market	(999)		(999)
Net income	468			468
Ending balance at Mar. 31, 2024	$ 279,895	$ 12	4,424,216	(4,144,333)
Ending balance (in shares) at Mar. 31, 2024		12,481,944
Beginning balance (in shares) at Dec. 31, 2023	12,497,770	12,497,770
Beginning balance at Dec. 31, 2023	$ 280,315	$ 12	4,425,104	(4,144,801)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	4,148
Ending balance at Jun. 30, 2024	$ 282,831	$ 12	4,423,472	(4,140,653)
Ending balance (in shares) at Jun. 30, 2024		12,447,195
Beginning balance (in shares) at Dec. 31, 2023	12,497,770	12,497,770
Beginning balance at Dec. 31, 2023	$ 280,315	$ 12	4,425,104	(4,144,801)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net settlement for employee taxes on stock options	43
Net income	7,616
Ending balance at Sep. 30, 2024	$ 283,431	$ 12	4,420,604	(4,137,185)
Ending balance (in shares) at Sep. 30, 2024	12,263,982	12,263,982
Beginning balance (in shares) at Mar. 31, 2024		12,481,944
Beginning balance at Mar. 31, 2024	$ 279,895	$ 12	4,424,216	(4,144,333)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	249		249
Issuance of common stock upon vesting of restricted stock (in shares)		17,323
Repurchases of common stock in open market (in shares)		(54,667)
Repurchases of common stock in open market	(950)		(950)
Net settlement for employee taxes on stock options	(43)		(43)
Stock options exercised, net		2,595
Net income	3,680			3,680
Ending balance at Jun. 30, 2024	282,831	$ 12	4,423,472	(4,140,653)
Ending balance (in shares) at Jun. 30, 2024		12,447,195
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	348		348
Issuance of common stock upon vesting of restricted stock (in shares)		7,123
Repurchases of common stock in open market (in shares)		(190,336)
Repurchases of common stock in open market	(3,216)		(3,216)
Net income	3,468			3,468
Ending balance at Sep. 30, 2024	$ 283,431	$ 12	$ 4,420,604	$ (4,137,185)
Ending balance (in shares) at Sep. 30, 2024	12,263,982	12,263,982