CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash	$ 16,489	$ 30,393
Restricted cash	22	35
Accounts receivable, net	6,646	5,996
Inventory	9,699	9,554
Prepaid expenses and other current assets	1,828	1,450
Total current assets	34,684	47,428
Property and equipment, net	1,326	1,200
Intangible assets, net	16,768	18,466
Other assets	76	76
Total assets	52,854	67,170
Current liabilities:
Accounts payable	1,764	1,582
Accrued expenses	7,517	6,375
Payables to tissue suppliers	3,199	2,467
Current portion of long-term debt	8,059	8,059
Current portion of revenue interest obligation	7,750	2,750
Revolving line of credit	6,452	4,763
Other current liabilities	8	5
Total current liabilities	34,749	26,001
Long-term debt	7,106	10,410
Long-term revenue interest obligation	11,469	16,540
Other long-term liabilities	899	698
Total liabilities	54,223	53,649
Commitments and contingencies (Note 8)
Stockholders' equity (deficit):
Additional paid-in capital	121,256	118,599
Accumulated deficit	(122,638)	(105,091)
Total stockholders' equity (deficit)	(1,369)	13,521
Total liabilities and stockholders' equity	52,854	67,170
Class A Common stock
Stockholders' equity (deficit):
Common stock	9	9
Class B Common stock
Stockholders' equity (deficit):
Common stock	$ 4	$ 4