Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 7,054	$ 10,761
Trade accounts receivable, less allowances of $27 and $42, respectively	2,962	3,595
Inventories, net	6,434	5,718
Prepaid and other current assets	1,255	596
Assets held for sale	0	225
Total current assets	17,705	20,895
Property and equipment, net	713	1,097
Other assets	147	159
Total assets	18,565	22,151
Current liabilities:
Accounts payable	3,002	1,630
Accrued liabilities	125	53
Accrued Professional Fees, Current	196	77
Accrued payroll and related benefits	476	394
Accrued sales commissions	134	124
Accrued Severance Costs	274	0
Accrued restructuring	95	170
Accrued warranty reserve	260	174
Deferred revenue	9	5
Total current liabilities	4,571	2,627
Other liabilities	152	232
Total liabilities	4,723	2,859
STOCKHOLDERS' EQUITY
Preferred stock, par value $0.0001 per share: Authorized: 2,000,000 shares in 2017 and 2016, Issued and outstanding: no shares in 2016 and 2015	0	0
Common stock, par value $0.0001 per share: Authorized: 30,000,000 shares in 2017 and 2016, Issued and outstanding: 11,690,030 at September 30, 2016 and 11,648,978 at December 31, 2015	1	1
Additional paid-in capital	128,160	127,493
Accumulated other comprehensive income	(1)	2
Accumulated deficit	(114,318)	(108,204)
Total stockholders' equity	13,842	19,292
Total liabilities and stockholders' equity	$ 18,565	$ 22,151