Condensed Consolidated Statements of Operations - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenue:
Total revenue	$ 6,651,000	$ 9,675,000
Cost of revenue:
Total cost of revenue	1,818,000	3,376,000
Gross profit	4,833,000	6,299,000
Operating expenses:
Research and development	4,146,000	4,032,000
Sales and marketing	890,000	796,000
General and administrative	2,338,000	2,286,000
Total operating expenses	7,374,000	7,114,000
Loss from operations	(2,541,000)	(815,000)
Other income (expense):
Interest income (expense), net	183,000	106,000
Other income (expense), net	96,000	87,000
Total other income (expense), net	279,000	193,000
Loss before provision for income taxes	(2,262,000)	(622,000)
Provision for income taxes	0	1,000
Net loss	$ (2,262,000)	$ (623,000)
Net loss per share, basic and diluted	$ (0.05)	$ (0.01)
Weighted-average number of shares used in computing net loss per share, basic and diluted	49,757,606	49,581,927
Program Revenue
Revenue:
Total revenue	$ 6,385,000	$ 9,256,000
Cost of revenue:
Total cost of revenue	1,818,000	3,375,000
Licensing and Royalty Revenue
Revenue:
Total revenue	$ 266,000	419,000
Cost of revenue:
Total cost of revenue		$ 1,000