CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows used in operating activities:
Net loss	$ (3)	$ (1,010)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	0	329
Share-based compensation	59	221
Recovery of provision for excess and obsolete inventories	0	(23)
Non-cash accretion of interest on investments	(253)	(22)
Payment-in-kind interest	(203)	0
Net realized and unrealized loss on investments	256	0
Foreign currency exchange loss	0	110
Decrease (increase) in assets:
Accounts receivable	0	(5)
Inventories	0	254
Prepaid expenses and other current assets	284	(385)
Other long-term assets	9	(115)
Increase (decrease) in liabilities:
Accounts payable and accrued expenses	(301)	(2,456)
Deferred revenue	0	(333)
Pension and other long-term liabilities	26	(70)
Net cash used in operating activities	(126)	(3,505)
Cash flows provided by investing activities:
Additions to property and equipment	(6)	(222)
Origination and fundings of real-estate loans receivable	(415)	0
Funding of cash advance receivable	(2,000)	0
Proceeds from sale or maturity of securities	6,167	4,783
Purchases of securities	(1,635)	(4,175)
Net cash provided by investing activities	2,111	386
Cash flows used in financing activities:
Purchase of common stock for retirement	(115)	0
Dividends paid	0	(1,148)
Net cash used in financing activities	(115)	(1,148)
Effect of exchange rates on cash and cash equivalents	(4)	(2)
Increase (decrease) in cash and cash equivalents	1,866	(4,269)
Cash and cash equivalents - beginning of year	32,992	35,893
Cash and cash equivalents - end of period	34,858	31,624
Cash paid during the period for:
Interest	0	0
Income taxes, net of refunds	$ 210	$ 615