Condensed Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Statement [Abstract]
Revenues	$ 5,579	$ 3,607	$ 15,526	$ 8,239
Operating expenses:
Cost of revenues	615	724	1,999	1,855
Engineering and product development	587	432	1,443	1,345
Sales and marketing	1,798	1,350	5,283	3,502
General and administrative	1,033	1,025	2,908	2,765
Total operating expenses	4,033	3,531	11,633	9,467
Income (loss) from operations	1,546	76	3,893	(1,228)
Interest expense	(1)	(42)	(57)	(190)
Related party interest expense	(74)	(75)	(206)	(158)
Loss on extinguishment of loans				(179)
Other expense	(3)		(4)	(8)
Other expense	(78)	(117)	(267)	(535)
Net income (loss)	$ 1,468	$ (41)	$ 3,626	$ (1,763)
Net income (loss) per share:
Basic (in dollars per share)	$ 0.24	$ (0.01)	$ 0.60	$ (0.33)
Diluted (in dollars per share)	$ 0.19	$ (0.01)	$ 0.48	$ (0.33)
Weighted average number of shares used in computing: basic and diluted loss per share
Basic (in shares)	6,086,489	5,463,568	5,998,460	5,346,178
Diluted (in shares)	7,927,788	5,463,568	7,611,961	5,346,178