Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Net cash flows from operating activities:
Net income (loss)	$ 5,412	$ (16,914)
Adjustments to reconcile net income (loss) to net cash from operating activities:
Depreciation and amortization	11,800	11,501
Non-cash compensation	7,730	7,279
Non-cash lease expense	3,897	3,631
Loss on extinguishment of debt	3,669	0
Write-down of inventories and deferred preservation costs	1,508	2,021
Deferred income taxes	994	(8,073)
Fair value adjustment of long-term loan	0	5,000
Gain from sale of non-financial assets	0	(14,250)
Change in fair value of contingent consideration	(15,680)	15,700
Other	1,178	1,836
Changes in operating assets and liabilities:
Inventories and deferred preservation costs	(2,165)	(6,921)
Prepaid expenses and other assets	(5,224)	(2,317)
Accounts payable, accrued expenses, and other liabilities	(6,031)	1,607
Receivables	(6,446)	655
Net cash flows provided by operating activities	642	755
Net cash flows from investing activities:
Proceeds from sale of non-financial assets, net	0	14,250
Payments for Endospan Agreement	0	(5,000)
Capital expenditures	(6,124)	(5,015)
Net cash flows (used in) provided by investing activities	(6,124)	4,235
Net cash flows from financing activities:
Proceeds from issuance of debt	190,000	0
Proceeds from revolving credit facility	30,000	0
Proceeds from exercise of stock options and issuance of common stock	3,587	2,581
Proceeds from financing insurance premiums	0	3,558
Principal payments on short-term notes payable	(1,027)	(529)
Payment of debt issuance costs	(10,044)	0
Repayment of debt	(211,688)	(1,381)
Other	(272)	(825)
Net cash flows provided by financing activities	556	3,404
Effect of exchange rate changes on cash and cash equivalents	1,005	1,030
(Decrease) increase in cash and cash equivalents	(3,921)	9,424
Cash and cash equivalents beginning of period	58,940	39,351
Cash and cash equivalents end of period	$ 55,019	$ 48,775