CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Current assets
Cash	$ 37,800	$ 58,514
Prepaid expenses and other current assets	6,164	3,168
Total current assets	43,964	61,682
Property and equipment, net	15,989	16,554
Restricted cash	309	307
Other assets	4,198	3,899
Total assets	64,460	82,442
Current liabilities
Accounts payable	3,224	4,243
Accrued expenses and other current liabilities	12,926	15,500
Operating lease obligations	736	519
Current portion of long-term debt	0	1,326
Total current liabilities	16,886	21,588
Non-current liabilities
Operating lease obligations, less current portion	3,418	3,313
Long term debt, net	27,669	27,345
Other non-current liabilities	573	564
Total non-current liabilities	31,660	31,222
Total liabilities	48,546	52,810
Commitments and contingencies (Note 13)
Stockholders' equity
Preferred stock; $0.01 par value; 10,000,000 shares authorized, zero shares issued and outstanding at March 31, 2025 and December 31, 2024
Common stock; $0.01 par value; 390,000,000 shares authorized, 292,149,975 and 291,489,058 shares issued, and 292,028,475 and 291,367,558 shares outstanding at March 31, 2025 and December 31, 2024, respectively	2,922	2,915
Treasury stock, at cost, 121,500 shares at March 31, 2025 and December 31, 2024	(48)	(48)
Additional paid-in capital	368,571	366,938
Accumulated other comprehensive income	40	48
Accumulated deficit	(355,571)	(340,221)
Total stockholders' equity	15,914	29,632
Total liabilities and stockholders' equity	$ 64,460	$ 82,442