Restatement of Unaudited Quarterly Results (Unaudited) - Condensed Consolidated Statement of Cash Flow (Details) - USD ($) $ in Thousands	3 Months Ended						6 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net loss	$ (4,054)	$ (7,438)	$ (10,545)	$ (9,805)	$ (10,809)	$ (6,454)	$ (17,983)	$ (17,263)	$ (22,037)	$ (27,068)	$ (36,666)	$ (40,472)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization			29,677			32,740	60,891	62,438	92,334	89,093	126,533	116,835
Net book value of property held for lease buyouts			6,747			10,020	13,296	19,040	19,365	24,783	25,784	30,576
Impairment on property held for lease expense			5,258			3,224	10,600	7,490	15,494	11,928	22,019	17,575
Change in fair value of warrants liability	(382)	(257)	(132)	(381)	(2,323)	(3,089)	(389)	(5,412)	(771)	(5,793)	(807)	(6,439)
Stock-based compensation			2,090			1,089	4,303	2,946	5,678	4,753	7,034	6,439
Loss on partial extinguishment of debt	0	0	2,391				2,391		2,391		2,391	0
Amortization of debt discount			1,093			1,018	1,592	2,107	2,147	3,278	2,760	4,541
Amortization of debt issuance costs, net			81			91	145	181	211	271	277	361
Accrued PIK Interest			530			388	864	785	1,208	1,508	1,555	2,121
Amortization of right-of-use assets			98			89	198	179	274	271	355	367
Change in operating assets and liabilities:
Property held for lease			(43,299)			(36,398)	(87,422)	(72,844)	(128,464)	(105,741)	(183,695)	(151,345)
Prepaid expenses and other current assets			3,109			1,970	2,858	(276)	3,125	(261)	3,610	(3,730)
Litigation insurance reimbursement receivable							0				(5,000)	0
Accounts payable			252			401	(290)	(277)	(529)	872	(361)	(765)
Accrued liabilities			(594)			(1,150)	186	(140)	1,594	1,514	4,419	3,968
Lease liabilities			(112)			(99)	(227)	(201)	(312)	(306)	(387)	(413)
Unearned revenues			450			(99)	436	(512)	572	(638)	765	(467)
Net cash used in operating activities			(2,906)			3,741	(8,551)	(1,759)	(7,720)	(1,536)	(17,414)	(20,848)
Cash flows from investing activities:
Purchases of property and equipment			(4)			(139)		(153)	(10)	(164)	(20)	(168)
Additions to capitalized software			(297)			(472)	(519)	(845)	(753)	(1,203)	(954)	(1,337)
Net cash used in investing activities			(301)			(611)	(519)	(998)	(763)	(1,367)	(974)	(1,505)
Cash flows from financing activities:
Proceeds from revolving line of credit			4,350				9,380	9,935	10,916	9,935	14,297	18,517
Principal repayments on revolving line of credit			(872)			(13,224)	(3,311)	(16,171)	(8,054)	(21,661)	(11,551)	(22,477)
Principal repayment on term loan			(25,000)				(25,000)		(25,000)		(25,000)	0
Payments of deferred financing costs							22		34		34	0
Repurchases of restricted stock			(163)			(195)	(247)	(244)	(317)	(293)	(355)	(344)
Proceeds from exercise of stock options						60		60		65	1	67
Net cash used in financing activities			(21,685)			(13,359)	(19,200)	(6,420)	(22,489)	(11,954)	(22,642)	(4,237)
Net decrease in cash, cash equivalents and restricted cash			(24,892)			(10,229)	(28,270)	(9,177)	(30,972)	(14,857)	(41,030)	(26,590)
Cash, cash equivalents and restricted cash at beginning of period	41,571	44,949	69,841	87,254	86,202	96,431	69,841	96,431	69,841	96,431	69,841	96,431
Cash, cash equivalents and restricted cash at end of period	38,869	41,571	44,949	81,574	87,254	86,202	41,571	87,254	38,869	81,574	28,811	69,841
As Previously Reported
Cash flows from operating activities:
Net loss	(2,914)	(6,410)	(9,114)	(8,153)	(9,733)	(5,558)	(15,524)	(15,291)	(18,438)	(23,444)		(37,871)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization			29,012			32,740	59,646	62,438	90,439	89,093		116,329
Net book value of property held for lease buyouts			6,452			10,020	12,921	19,040	18,909	24,783		30,505
Impairment on property held for lease expense			5,223			3,224	10,515	7,490	15,356	11,928		17,216
Change in fair value of warrants liability	(382)	(257)	(132)	(381)	(2,323)	(3,089)	(389)	(5,412)	(771)	(5,793)
Stock-based compensation			2,090			1,089	4,303	2,946	5,678	4,753
Loss on partial extinguishment of debt	0	0	2,391				2,391		2,391
Amortization of debt discount			1,093			537	1,592	1,015	2,147	1,130		5,275
Amortization of debt issuance costs, net			81			91	145	181	211	271
Accrued PIK Interest			530			388	864	785	1,208	1,508
Amortization of right-of-use assets			98			89	198	179	274	271
Change in operating assets and liabilities:
Property held for lease			(43,013)			(36,398)	(86,725)	(72,844)	(127,327)	(105,741)		(151,843)
Prepaid expenses and other current assets			2,778			1,849	2,030	(397)	1,738	(382)		(4,266)
Litigation insurance reimbursement receivable							0
Accounts payable			252			401	(290)	(277)	(529)	872
Accrued liabilities			(985)			(1,444)	(437)	(899)	734	159		2,719
Lease liabilities			(112)			(99)	(227)	(201)	(312)	(306)
Unearned revenues			450			(99)	436	(512)	572	(638)		(583)
Net cash used in operating activities			(2,906)			3,741	(8,551)	(1,759)	(7,720)	(1,536)		(20,848)
Cash flows from investing activities:
Purchases of property and equipment			(4)			(139)		(153)	(10)	(164)
Additions to capitalized software			(297)			(472)	(519)	(845)	(753)	(1,203)
Net cash used in investing activities			(301)			(611)	(519)	(998)	(763)	(1,367)
Cash flows from financing activities:
Proceeds from revolving line of credit			4,350				9,380	9,935	10,916	9,935
Principal repayments on revolving line of credit			(872)			(13,224)	(3,311)	(16,171)	(8,054)	(21,661)
Principal repayment on term loan			(25,000)				(25,000)		(25,000)
Payments of deferred financing costs							22		34
Repurchases of restricted stock			(163)			(195)	(247)	(244)	(317)	(293)
Proceeds from exercise of stock options						60		60		65
Net cash used in financing activities			(21,685)			(13,359)	(19,200)	(6,420)	(22,489)	(11,954)
Net decrease in cash, cash equivalents and restricted cash			(24,892)			(10,229)	(28,270)	(9,177)	(30,972)	(14,857)
Cash, cash equivalents and restricted cash at beginning of period	41,571	44,949	69,841	87,254	86,202	96,431	69,841	96,431	69,841	96,431	69,841	96,431
Cash, cash equivalents and restricted cash at end of period	38,869	41,571	44,949	81,574	87,254	86,202	41,571	87,254	38,869	81,574		69,841
Restatement Adjustments
Cash flows from operating activities:
Net loss	(1,140)	(1,028)	(1,431)	(1,652)	(1,076)	(896)	(2,459)	(1,972)	(3,599)	(3,624)		(2,601)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization			665			0	1,245	0	1,895	0		506
Net book value of property held for lease buyouts			295			0	375	0	456	0		71
Impairment on property held for lease expense			35			0	85	0	138	0		359
Change in fair value of warrants liability	0	0	0	0	0	0	0	0	0	0
Stock-based compensation			0			0	0	0	0	0
Loss on partial extinguishment of debt	0	0	0				0		0
Amortization of debt discount			0			481	0	1,092	0	2,148		(734)
Amortization of debt issuance costs, net			0			0	0	0	0	0
Accrued PIK Interest			0			0	0	0	0	0
Amortization of right-of-use assets			0			0	0	0	0	0
Change in operating assets and liabilities:
Property held for lease			(286)			0	(697)	0	(1,137)	0		498
Prepaid expenses and other current assets			331			121	828	121	1,387	121		536
Litigation insurance reimbursement receivable							0
Accounts payable			0			0		0		0
Accrued liabilities			391			294	623	759	860	1,355		1,249
Lease liabilities			0			0	0	0	0	0
Unearned revenues			0			0	0	0	0	0		116
Net cash used in operating activities			0			0	0	0	0	0		0
Cash flows from investing activities:
Purchases of property and equipment			0			0		0	0	0
Additions to capitalized software			0			0	0	0	0	0
Net cash used in investing activities			0			0	0	0	0	0
Cash flows from financing activities:
Proceeds from revolving line of credit			0				0	0	0	0
Principal repayments on revolving line of credit			0			0	0	0	0	0
Principal repayment on term loan			0				0		0
Payments of deferred financing costs							0		0
Repurchases of restricted stock			0			0	0	0	0	0
Proceeds from exercise of stock options						0		0		0
Net cash used in financing activities			0			0	0	0	0	0
Net decrease in cash, cash equivalents and restricted cash			0			0	0	0	0	0
Cash, cash equivalents and restricted cash at beginning of period	0	0	0	0	0	0	0	0	0	0	$ 0	0
Cash, cash equivalents and restricted cash at end of period	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0		$ 0