Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 6,391	$ 8,589
Accounts receivable	175
Prepaid expenses and other current assets	912	816
Total current assets	7,478	9,405
Property and equipment, net	189	297
Operating lease right-of-use asset	310	141
TOTAL ASSETS	7,977	9,843
Current liabilities:
Accounts payable	1,518	1,061
Accrued expenses	781	980
Current portion of long-term debt	74	74
Operating lease liability	164	141
Total current liabilities	2,537	2,256
Long-term debt	101	175
Operating lease liability, net of current portion	146
TOTAL LIABILITIES	2,784	2,431
Commitments and contingencies (Note 7)
Stockholders’ equity (deficit):
Common stock, par value of $0.0001 per share; 100,000,000 shares authorized as of December 31, 2022, and December 31, 2021; 49,881,613 and 30,801,962 shares issued as of December 31, 2022 and December 31, 2021, respectively; 49,880,761 and 30,801,110 shares outstanding as of December 31, 2022 and December 31, 2021, respectively	5	3
Additional paid-in capital	324,875	307,281
Treasury stock, at cost; 852 shares of common stock as of December 31, 2022 and 2021, respectively	(11)	(11)
Accumulated deficit	(319,676)	(299,861)
TOTAL STOCKHOLDERS' EQUITY	5,193	7,412
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 7,977	$ 9,843