Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash	$ 2,727	$ 350
Trade accounts receivable, less allowances of $7 and $28, respectively	2,518	2,337
Inventories, net	5,900	6,168
Prepaid and other current assets	677	479
Total current assets	11,822	9,334
Property and equipment, net	415	389
Operating lease right-of-use assets	1,051	1,289
Restructured lease right-of-use assets	214	322
Other assets	405	405
Total assets	13,907	11,739
Current liabilities:
Accounts payable	2,617	1,340
Accrued liabilities	57	186
Accrued legal and professional fees	307	215
Accrued payroll and related benefits	585	360
Accrued sales commissions	50	32
Accrued restructuring	25	24
Accrued warranty reserve	215	195
Deferred revenue	61	18
Operating lease liabilities	577	550
Restructured lease liabilities	331	319
Finance lease liabilities	3	3
Warrant liability	4,011	0
Convertible notes	0	1,700
PPP loan	263	0
Iliad note, net of discount and loan origination fees	603	885
Credit line borrowings, net of loan origination fees	1,331	715
Total current liabilities	11,036	6,542
Other liabilities	0	14
Operating lease liabilities, net of current portion	623	906
Restructured lease liabilities, net of current portion	0	168
Finance lease liabilities, net of current portion	2	4
PPP loan, net of current maturities	532	0
Iliad note, net of current maturities	0	109
Total liabilities	12,193	7,743
STOCKHOLDERS' EQUITY
Issued and outstanding: 2,597,470 at June 30, 2020 and no shares outstanding at December 31, 2019	0	0
Issued and outstanding: 3,216,345 at June 30, 2020 and 2,485,684 at December 31, 2019	0	0
Additional paid-in capital	131,472	128,873
Accumulated other comprehensive loss	(3)	(3)
Accumulated deficit	(129,755)	(124,874)
Total stockholders' equity	1,714	3,996
Total liabilities and stockholders' equity	$ 13,907	$ 11,739