Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Cash Flows from Operating Activities:
Net loss	$ (33,017)	$ (24,774)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense	2,795	1,694
Depreciation and amortization expense	699	524
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	(158)	(161)
Accounts payable and accrued expenses	4,595	1,195
Other revenue deferred – current liability	(998)	998
Long-term license revenue deferred	35,000
Operating lease liabilities	(272)	(342)
Net Cash Provided By/Used In Operating Activities	8,644	(20,866)
Cash Flows Used in Investing Activities:
Purchase of property and equipment	(366)	(133)
Net Cash Used In Investing Activities	(366)	(133)
Cash Flows from Financing Activities:
Payments on finance leases	(49)	(85)
Proceeds from sales of shares of common stock, net of offering costs	23,158	35,300
Proceeds from the exercise of stock options		6
Net Cash Provided By Financing Activities	23,109	35,221
Net change in cash, cash equivalents and restricted cash	31,387	14,222
Cash, cash equivalents and restricted cash at beginning of year	78,221	63,999
Cash, cash equivalents and restricted cash at end of year	109,608	78,221
Supplemental disclosures of cash flow information:
Cash paid for interest
Cash paid for taxes
Supplemental disclosure of non-cash investing and financing activities:
Right-of-use assets obtained in exchange for lease liabilities	2,605
Equipment obtained in exchange for security deposit	$ 50