Condensed Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 22,386	$ 40,608
Restricted cash, current	7,807	7,283
Accounts receivable, net	7,017	7,292
Inventory	16,928	15,682
Prepaid expenses and other current assets	3,139	4,139
Total current assets	57,277	75,004
Restricted cash, net of current portion		524
Intangible asset, net	30,916	34,970
Property and equipment, net	5,179	4,594
Operating lease right-of-use asset	586
Total assets	93,958	115,092
Current Liabilities:
Accounts payable	3,273	3,629
Accrued compensation	3,467	3,518
Accrued liabilities	11,386	10,662
Contingent consideration liability, current	5,000	5,000
Operating lease liability	774
Total current liabilities	23,900	22,809
Long-term debt	39,208	39,085
Contingent consideration liability, net of current portion		9,094
Total liabilities	63,108	70,988
Commitments and contingencies (Note 8)
Stockholders’ deficit:
Preferred stock, $0.001 par value, 5,000,000 shares authorized as of June 30, 2022 and December 31, 2021; no shares issued and outstanding as of June 30, 2022 and December 31, 2021
Common stock, $0.001 par value, 100,000,000 shares authorized as of June 30, 2022 and December 31, 2021; 28,856,324 shares and 28,822,283 shares issued and outstanding as of June 30, 2022 and December 31, 2021, respectively	28	28
Additional paid-in capital	296,905	293,621
Accumulated other comprehensive income	11	11
Accumulated deficit	(266,094)	(249,556)
Total stockholders' equity	30,850	44,104
Total liabilities and stockholders equity	$ 93,958	$ 115,092