CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenue:
Product	$ 1,182	$ 407	$ 1,279	$ 680
Maintenance	703	653	1,322	1,309
Revenues	1,885	1,060	2,601	1,989
Cost of revenue:
Product	139	36	165	90
Maintenance	167	214	390	423
Gross profit	1,579	810	2,046	1,476
Operating expense:
General and administrative	987	965	2,190	1,934
Sales and marketing	816	702	1,680	1,463
Research and development	1,865	1,556	3,664	3,096
Depreciation and amortization	11	17	24	38
Total	3,679	3,240	7,558	6,531
Loss from operations	(2,100)	(2,430)	(5,512)	(5,055)
Interest expense, net	184	164	356	264
Other income, net	0	(50)	0	(50)
Loss before income taxes	(2,284)	(2,544)	(5,868)	(5,269)
Income tax expense	0	3	1	7
Net loss	(2,284)	(2,547)	(5,869)	(5,276)
Preferred dividends	(720)	(514)	(1,489)	(1,021)
Net loss available to common shareholders	$ (3,004)	$ (3,061)	$ (7,358)	$ (6,297)
Basic income and diluted loss per common share - see Note 3:
Net loss	$ (0.02)	$ (0.03)	$ (0.06)	$ (0.06)
Preferred dividends	(0.01)	0.00	(0.02)	(0.01)
Basic and diluted loss per share available to common shareholders	$ (0.03)	$ (0.03)	$ (0.08)	$ (0.07)
Basic and diluted weighted-average shares outstanding	95,161,570	92,539,230	94,749,904	92,203,567