Consolidated Statements Of Cash Flow - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash Flows from Operating Activities
Net income (loss)	$ 1,558	$ (2,355)
Adjustments to reconcile net income (loss) to net cash provided by (used for) operating activities:
Depreciation and amortization	552	562
Stock compensation expense	263	212
Asset impairment and related inventory write-down	(56)	542
Deferred income taxes	(144)	437
Loss on disposal of assets	7	22
Allowance for doubtful accounts	(4)	(121)
Changes in assets and liabilities
Receivables	6,731	1,711
Inventories	(1,526)	1,219
Accounts payable	(550)	(1,657)
Accrued liabilities and expenses	(452)	(83)
Deferred revenue	(600)	(1,018)
Other assets and liabilities	(1,587)	(966)
Net cash provided by (used for) operating activities	4,192	(1,495)
Cash Flows from Investing Activities
Purchases of short-term investments	(2,090)	(600)
Sales of short-term investments	737	1,042
Capital expenditures	(297)	(72)
Net cash (used for) provided by investing activities	(1,650)	370
Cash Flows from Financing Activities
(Payments to) proceeds from line of credit and short-term credit borrowings, net	(1,153)	850
Proceeds from stock plans	15	2
Shares surrendered upon restricted stock units and awards to cover taxes	(17)
Net cash (used for) provided by financing activities	(1,155)	852
Effect of Exchange Rate Changes on Cash and Cash Equivalents	86	64
Net Increase (Decrease) in Cash and Cash Equivalents	1,473	(209)
Cash and Cash Equivalents, July 1	3,704	6,787
Cash and Cash Equivalents, September 30	5,177	6,578
Supplemental Disclosure of Cash Flow Information
Cash paid during the year for interest	50	64
Cash paid during the year for income taxes	$ 375	$ 2