Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 7,875	$ 2,917
Short-term investments	8,141	4,404
Accounts receivable	75	76
Inventory	628	188
Prepaid expenses	139	87
Total current assets	16,858	7,672
Fixed assets - net	241	101
Deposits	51	41
Operating lease right-of-use asset	981	1,084
Deferred offering costs	0	374
TOTAL ASSETS	18,131	9,272
Current liabilities:
Accounts payable	345	478
Accrued expenses	1,657	1,088
Current portion of operating lease liability	234	202
Convertible notes payable and accrued interest, net of debt discount of $0 and $31 at June 30, 2022 and December 31, 2021, respectively	0	12,857
Convertible notes payable and accrued interest due to related parties, net of debt discount of $0 and $2 at June 30, 2022 and December 31, 2021, respectively	0	649
Total current liabilities	2,236	15,274
Operating lease liability, net of current portion	782	911
Total liabilities	3,018	16,185
Commitments and contingencies (Notes 6 and 9)
Stockholders' equity (deficit):
Common stock, $0.001 par value; 130,000,000 and 10,487,904 shares authorized at June 30, 2022 and December 31, 2021, respectively; 11,236,801 and 989,954 shares issued and outstanding at June 30, 2022 and December 31, 2021, respectively	11	1
Additional paid-in capital	43,657	113
Accumulated deficit	(28,416)	(20,575)
Accumulated other comprehensive income (loss)	(139)	(91)
Total stockholders' equity (deficit)	15,113	(20,552)
TOTAL LIABILITIES, CONVERTIBLE PREFERRED STOCK, AND STOCKHOLDERS' EQUITY (DEFICIT)	18,131	9,272
Series A Convertible Preferred Stock [Member]
Convertible preferred stock
Convertible Preferred Stock	0	12,367
Series B Convertible Preferred Stock [Member]
Convertible preferred stock
Convertible Preferred Stock	$ 0	$ 1,272