CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Cash flows from operating activities:
Net loss	$ (9,157)	$ (12,867)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	296	699
Amortization of right-of-use assets under operating leases	410	472
Amortization of intangible assets	1,270	1,280
PIK accrual	2,102	0
Share-based compensation expense	2,213	1,445
Bad debt expense	558	40
Amortization of debt discount	942	904
Amortization of debt issuance costs	607	627
Deferred income taxes	(30)	(155)
Loss on disposal of fixed assets	0	23
Change in fair value of warrant liability	0	(694)
Changes in operating assets and liabilities:
Accounts receivable	(2,501)	(1,308)
Prepaid expenses and other current assets	2,986	10,506
Other assets	49	(2,044)
Accounts payable and accrued expenses	(1,623)	(478)
Current and non-current operating lease liabilities	(420)	(465)
Other current and non-current liabilities	61	(1,043)
Net cash used in operating activities	(2,237)	(3,058)
Cash flows from financing activities:
Proceeds from issuance of common stock, net of issuance costs	0	20,461
Exercise of Warrants, net of costs	(90)	0
Debt issuance and amendment costs	0	(4,786)
Repayments of long-term debt	0	(20,000)
Distributions to non-controlling interests	(19)	(102)
Payments of tax withholding on issuance of restricted share units and restricted shares	(590)	(460)
Net cash used in financing activities	(699)	(4,887)
Net decrease in cash, cash equivalents and restricted cash	(2,936)	(7,945)
Cash, cash equivalents and restricted cash at the beginning of the period	35,416	54,273	$ 54,273
Cash, cash equivalents and restricted cash at the end of the period	32,480	46,328	35,416
Supplemental cash flow information:
Interest paid	5,853	5,221
Income taxes paid (refunded), net	229	(4,663)
Acquisition of right-of-use assets with operating lease liabilities	14	258
Non-cash investing and financing activities:
Warrants issued in connection with Amended Credit Agreement	0	8,096
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	29,599	43,113	32,522
Restricted cash	2,881	3,215	2,894
Total cash, cash equivalents and restricted cash reported in the statements of cash flows	$ 32,480	$ 46,328	$ 35,416