CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows (used in) provided by operating activities:
Net income (loss)	$ 17,785	$ (4,674)
Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities:
Depreciation and amortization	606	1,341
Share-based compensation expense	2,256	696
(Recovery of) provision for excess and obsolete inventories	(23)	190
Deferred taxes, net	(1,186)	87
Non-cash accretion of investments	(129)	0
Foreign currency exchange gains (losses)	268	(131)
Gain on sale of Content Delivery business, net	(22,554)
Decrease (increase) in assets:
Accounts receivable	118	6,091
Inventories	(146)	367
Prepaid expenses and other current assets	(510)	(806)
Other long-term assets	417	(62)
Increase (decrease) in liabilities:
Accounts payable and accrued expenses	(5,459)	786
Deferred revenue	1,337	(1,841)
Pension and other long-term liabilities	(408)	142
Net cash (used in) provided by operating activities	(7,628)	2,186
Cash flows provided by (used in) investing activities:
Additions to property and equipment	(271)	(719)
Proceeds from sale or maturity of available-for-sale securities	11,733	0
Purchases of available-for-sale securities	(18,613)	(2,423)
Proceeds from sale of Content Delivery business, net of cash transferred	28,256	0
Net cash provided by (used in) investing activities	21,105	(3,142)
Cash flows used in financing activities:
Dividends paid	(2,652)	(3,396)
Purchase of treasury shares for retirement	(1,840)	0
Net cash used in financing activities	(4,492)	(3,396)
Effect of exchange rates on cash and cash equivalents	3	(166)
Increase (decrease) in cash and cash equivalents	8,988	(4,518)
Cash and cash equivalents - beginning of year	35,893	20,268
Cash and cash equivalents - end of period	44,881	15,750
Cash paid during the period for:
Interest	0	4
Income taxes (net of refunds)	1,052	793
Non-cash investing activities:
Unsettled investment in available-for-sale security	$ 2,679	$ 0