Condensed Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 42,219	$ 26,284
Accounts receivable, net of allowance for credit losses of $238 and $65	10,128	7,679
Other current assets	5,232	5,720
Total current assets	57,579	39,683
Non‑current assets
Property and equipment, net	28,019	27,867
Intangible assets, net	6,884	7,911
Operating lease right-of-use assets	1,767	1,745
Goodwill	15,031	15,031
Other long-term assets	6,561	6,859
Total non‑current assets	58,262	59,413
Total assets	115,841	99,096
Current liabilities
Accounts payable	2,220	2,929
Accrued liabilities	8,324	7,710
Deferred revenue	447	324
Current portion of operating lease liabilities	300	252
Current portion of contingent consideration	5,838	21,857
Current portion of notes payable	37	51
Other current liabilities	386	293
Total current liabilities	17,552	33,416
Non‑current liabilities
Long‑term notes payable, net of current portion	35,807	35,225
Long-term operating lease liabilities	25,478	25,163
Other long-term liabilities	744	712
Total non‑current liabilities	62,029	61,100
Total liabilities	79,581	94,516
Commitments and contingencies
Stockholders' equity
Preferred stock, $0.001 par value, 5,000,000 authorized; 0 (2024 and 2023) issued and outstanding
Common stock, $0.001 par value, 200,000,000 authorized; 145,149,630 (2024) and 96,235,883 (2023) shares issued and outstanding	145	96
Additional paid‑in capital	480,103	424,050
Accumulated deficit	(443,988)	(419,566)
Total stockholders' equity	36,260	4,580
Total liabilities and stockholders' equity	$ 115,841	$ 99,096