Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating activities
Net loss	$ (28,521,000)	$ (14,653,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	147,000	89,000
Non- cash Stock-based compensation	3,467,000	2,195,000
Amortization of financing lease right-of-use assets	461,000	537,000
Amortization of operating lease right-of-use assets	495,000	162,000
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	(2,093,000)	(1,876,000)
Other non-current assets	(97,000)	(159,000)
Accounts payable	1,510,000	(319,000)
Accrued expenses and other current liabilities	924,000	554,000
Short-term operating lease liabilities	112,000	158,000
Long-term operating lease liabilities	(526,000)	(197,000)
Net cash used in operating activities	(24,121,000)	(13,509,000)
Investing activities
Purchases of property and equipment	(3,689,000)	0
Construction in progress	(16,000)	(309,000)
Net cash used in investing activities	(3,705,000)	(309,000)
Financing activities
Proceeds from exercise of common stock options	61,000	30,000
Proceeds from issuance of common stock after deducting underwriting discounts.	9,542,000	36,327,000
Principal payments on financing leases	(615,000)	(535,000)
Repayment of loan payable	0	(174,000)
Payment of deferred offering costs	0	(2,693,000)
Net cash provided by financing activities	8,988,000	32,955,000
Net (decrease) increase in cash and restricted cash	(18,838,000)	19,137,000
Cash and restricted cash at beginning of period	37,272,000	18,135,000
Cash and restricted cash at end of period	18,434,000	37,272,000
Supplemental disclosure of non-cash operating, financing and investing information
Construction in progress in accounts payable	13,000	94,000
Property and equipment in accounts payable	356,000	0
Transfer of construction in progress to property and equipment	403,000	0
Conversion of preferred stock - Series A into common stock	0	34,900,000
Right-of-use assets obtained in exchange for financing lease	0	309,000
Right-of-use assets obtained in exchange for operating lease	0	969,000
Initial measurement of financing lease right-of-use assets	1,448,000	0
Initial measurement of operating lease right-of-use assets	3,046,000	1,693,000
Initial measurement Of Lease Liabilities	4,286,000	1,728,000
Cash, end of year	18,182,000	37,021,000
Long-term restricted cash, end of year	252,000	251,000
Cash and restricted cash, end of year	$ 18,434,000	$ 37,272,000