Condensed Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash	$ 13,129	$ 3,643
Accounts receivable trade, net	74	25
Prepaid expenses	381	178
Inventory	969	945
Deposits	22	28
Total current assets	14,575	4,819
Right to use asset-operating leases	589	665
Property and equipment, net	471	538
Total assets	15,635	6,022
Current liabilities:
Short-term debt	67	98
Accounts payable	219	404
Accrued expenses	426	292
Total current liabilities	712	794
Long-term debt, net		673
Operating lease liability	599	671
Total liabilities	1,311	2,138
Commitments and contingencies (See note 12)
Stockholders' equity:
Common stock, $0.001 par value, 100,000,000 shares authorized, 12,185,496 and 5,099,512 shares issued and outstanding at June 30, 2021 and December 31, 2020, respectively	12	5
Additional paid-in capital	122,073	108,119
Accumulated deficit	(107,761)	(104,240)
Total stockholders' equity	14,324	3,884
Total liabilities and stockholders' equity	$ 15,635	$ 6,022