Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Operating expenses:
Gain on sale of Content Delivery business, net			$ 0	$ 22,609
Income from discontinued operations	$ 0	$ 22,728	$ 0	23,096
Content Delivery Business Segment [Member]
Revenue		8,148		16,018
Cost of sales		3,122		6,342
Gross margin		5,026		9,676
Operating expenses:
Sales and marketing		2,091		4,235
Research and development		1,612		3,290
General and administrative		473		951
Total operating expenses		4,176		8,476
Operating income		850		1,200
Gain on sale of Content Delivery business, net		22,609		22,609
Other expense, net		(33)		(143)
Income from discontinued operations before income taxes		23,426		23,666
Provision for income taxes		698		570
Income from discontinued operations		$ 22,728		$ 23,096