Condensed Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash	$ 4,718	$ 1,936
Accounts receivable trade, net	45	26
Accounts receivable-other		123
Prepaid expenses	284	257
Inventory	1,135	1,180
Deposits	18	20
Total current assets	6,200	3,542
Right to use asset-operating leases	573	699
Property and equipment, net	564	738
Total assets	7,337	4,979
Current liabilities:
Short-term debt	114	123
Accounts payable	640	265
Accrued expenses	399	1,193
Total current liabilities	1,153	1,581
Long-term debt, net	714	137
Operating lease liability	577	694
Total liabilities	2,444	2,412
Commitments and contingencies (See note 12)
Stockholders' equity:
Common stock, $0.001 par value, 100,000,000 shares authorized, 3,398,832 and 1,414,671 shares issued and outstanding at June 30, 2020 and December 31, 2019, respectively	3	1
Additional paid-in capital	105,117	98,433
Accumulated deficit	(100,227)	(95,867)
Total stockholders' equity	4,893	2,567
Total liabilities and stockholders' equity	$ 7,337	$ 4,979