CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 47,747	$ 56,984
Short-term investments	39,225	57,195
Accounts receivable, net	12,921	17,730
Inventory and other deferred costs	9,164	10,474
Prepaid expenses and other current assets	4,046	4,361
Total current assets	113,103	146,744
Property and equipment, net	52,662	57,366
Operating lease right-of-use assets	17,166	17,852
Other long-term assets	2,571	3,137
Total assets	185,502	225,099
Current liabilities
Accounts payable	9,936	14,920
Accrued and other current liabilities	19,248	23,941
Contract liabilities	4,174	3,288
Short-term warrant liability	775	5,085
Total current liabilities	34,133	47,234
Long-term operating lease liabilities	36,524	38,321
Long-term warrant liability	1,513	4,942
Other long-term liabilities	1,060	5,161
Total liabilities	73,230	95,658
Commitments and contingencies
Stockholders’ equity
Common stock, $0.0001 par value - 200,000,000 shares authorized; 53,052,847 and 50,480,694 shares issued and outstanding, respectively	5	5
Additional paid-in capital	606,863	598,364
Accumulated other comprehensive loss	(120)	(222)
Accumulated deficit	(494,476)	(468,706)
Total stockholders’ equity	112,272	129,441
Total liabilities and stockholders’ equity	$ 185,502	$ 225,099