Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenue:
Product	$ 41	$ 34	$ 81	$ 73
Maintenance	186	192	344	367
Total revenue	227	226	425	440
Cost of sales:
Product	1	2	2	5
Maintenance	17	11	33	19
Research and development	181	238	352	466
Sales and marketing	27	42	53	61
General and administrative	190	153	395	328
Total operating costs and expenses	416	446	835	879
Loss from operations	(189)	(220)	(410)	(439)
Other income (expense), net	15	(44)	14	(44)
Interest expense:
Related party	(14)	(8)	(27)	(16)
Other	(49)	(34)	(96)	(64)
Amortization of debt discount:
Related party	(3)	(8)	(6)	(14)
Other	(7)	(20)	(14)	(38)
Loss before income tax expense	(247)	(334)	(539)	(615)
Income tax expense	(1)		(1)	(2)
Net loss	$ (248)	$ (334)	$ (540)	$ (617)
Basic and diluted net loss per common share	$ (0.04)	$ (0.06)	$ (0.09)	$ (0.11)
Weighted average common shares outstanding, basic and diluted	5,762	5,762	5,762	5,762