Condensed Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets
Cash	$ 32,107	$ 37,021
Prepaid expenses and other current assets	1,167	1,959
Total Current Assets	33,274	38,980
Non-current assets
Property and equipment, net	240	97
Construction in progress	497	403
Restricted Cash	251	251
Right of use assets - financing leases	555	704
Right of use assets - operating leases	1,563	1,630
Other non-current assets	158	158
Total Non-Current Assets	3,264	3,243
Total Assets	36,538	42,223
Current liabilities
Accounts payable	553	395
Accrued expenses and other current liabilities	884	1,235
Short-term financing lease liability	325	392
Short-term operating lease liability	306	234
Total Current Liabilities	2,068	2,256
Long-term financing lease liability	201	269
Long-term operating lease liability	1,434	1,515
Total Non-Current Liabilities	1,635	1,784
Total Liabilities	3,703	4,040
Commitments and Contingencies
Stockholders' Deficit
Common stock, par value $0.0001 per share; 490,000,000 shares authorized at March 31, 2022 and December 31, 2021; 18,812,267 and 18,781,242 shares issued and outstanding at March 31, 2022 and December 31, 2021, respectively	2	2
Additional paid-in capital	71,669	70,872
Accumulated deficit	(38,836)	(32,691)
Total Stockholders' Equity	32,835	38,183
Total Liabilities and Stockholders' Equity	$ 36,538	$ 42,223