Condensed Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash	$ 11,083	$ 3,643
Accounts receivable trade, net	79	25
Prepaid expenses	581	178
Inventory	1,007	945
Deposits	22	28
Total current assets	12,772	4,819
Right to use asset-operating leases	551	665
Property and equipment, net	397	538
Total assets	13,720	6,022
Current liabilities:
Short-term debt	49	98
Accounts payable	267	404
Accrued expenses	550	292
Total current liabilities	866	794
Long-term debt, net		673
Operating lease liability	562	671
Total liabilities	1,428	2,138
Commitments and contingencies (See note 12)
Stockholders’ equity:
Common stock, $0.001 par value, 100,000,000 shares authorized, 12,191,112 and 5,099,512 shares issued and outstanding at September 30, 2021 and December 31, 2020, respectively	12	5
Additional paid-in capital	122,294	108,119
Accumulated deficit	(110,014)	(104,240)
Total stockholders’ equity	12,292	3,884
Total liabilities and stockholders’ equity	$ 13,720	$ 6,022