Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash	$ 2,574	$ 350
Trade accounts receivable, less allowances of $10 and $28, respectively	3,366	2,337
Inventories, net	5,259	6,168
Prepaid and other current assets	1,361	479
Total current assets	12,560	9,334
Property and equipment, net	420	389
Operating lease right-of-use assets	923	1,289
Restructured lease right-of-use assets	161	322
Other assets	3	405
Total assets	14,067	11,739
Current liabilities:
Accounts payable	3,089	1,340
Accrued liabilities	257	186
Accrued legal and professional fees	237	215
Accrued payroll and related benefits	662	360
Accrued sales commissions	76	32
Accrued restructuring	18	24
Accrued warranty reserve	230	195
Deferred revenue	105	18
Operating lease liabilities	588	550
Restructured lease liabilities	250	319
Finance lease liabilities	3	3
Warrant liability	2,928	0
Convertible notes	0	1,700
Iliad Note, net of discount and loan origination fees	192	885
PPP loan		0
Credit line borrowings, net of loan origination fees	2,025	715
Total current liabilities	11,022	6,542
Other liabilities	0	14
Operating lease liabilities, net of current portion	472	906
Restructured lease liabilities, net of current portion	0	168
Finance lease liabilities, net of current portion	1	4
PPP loan, net of current maturities		0
Iliad Note, net of current maturities	0	109
Total liabilities	11,928	7,743
STOCKHOLDERS' EQUITY
Issued and outstanding: 2,597,470 at September 30, 2020 and no shares outstanding at December 31, 2019	0	0
Issued and outstanding: 3,428,268 at September 30, 2020 and 2,485,684 at December 31, 2019	0	0
Additional paid-in capital	133,062	128,873
Accumulated other comprehensive loss	(3)	(3)
Accumulated deficit	(130,920)	(124,874)
Total stockholders' equity	2,139	3,996
Total liabilities and stockholders' equity	$ 14,067	$ 11,739