Condensed Consolidated Statements of Operations - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenue:
Program revenue	$ 6,480,000	$ 10,052,000	$ 13,291,000	$ 22,013,000
Licensing and royalty revenue	1,609,000	1,677,000	4,742,000	4,234,000
Total revenue	8,089,000	11,729,000	18,033,000	26,247,000
Cost of revenue:
Cost of program revenue	2,545,000	4,117,000	5,242,000	8,853,000
Cost of licensing and royalty revenue	2,000	15,000	292,000	75,000
Total cost of revenue	2,547,000	4,132,000	5,534,000	8,928,000
Gross profit	5,542,000	7,597,000	12,499,000	17,319,000
Operating expenses:
Research and development	5,385,000	6,924,000	12,494,000	13,828,000
Sales and marketing	931,000	2,130,000	2,412,000	4,074,000
General and administrative	2,217,000	2,669,000	5,225,000	5,269,000
Restructuring charges	3,000		1,350,000
Total operating expenses	8,536,000	11,723,000	21,481,000	23,171,000
Loss from operations	(2,994,000)	(4,126,000)	(8,982,000)	(5,852,000)
Other income (expense):
Interest income (expense), net	58,000	40,000	113,000	72,000
Other income (expense), net	82,000	99,000	179,000	115,000
Total other income (expense), net	140,000	139,000	292,000	187,000
Loss before provision for income taxes	(2,854,000)	(3,987,000)	(8,690,000)	(5,665,000)
Provision for income taxes		1,000	800	4,000
Net loss	$ (2,854,000)	$ (3,988,000)	$ (8,691,000)	$ (5,669,000)
Net loss per share, basic and diluted	$ (0.06)	$ (0.08)	$ (0.18)	$ (0.11)
Weighted-average number of shares used in computing net loss per share, basic and diluted	49,554,701	49,448,325	49,537,074	49,316,859
Related Party Transactions.
Revenue:
Program revenue				$ 267,000
Licensing and royalty revenue		$ 306,000	$ 383,000	1,020,000
Total revenue		306,000	383,000	1,287,000
Cost of revenue:
Cost of program revenue				102,000
Cost of licensing and royalty revenue		2,000	1,000	25,000
Total cost of revenue		$ 2,000	$ 1,000	$ 127,000