Consolidated Statements Of Cash Flow - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash Flows from Operating Activities
Net Income	$ 892	$ 1,558
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	567	552
Stock compensation expense	211	263
Asset impairment and related inventory write-down		(56)
Deferred income taxes	(194)	(144)
(Gain) loss on disposal of assets	(15)	7
Allowance for doubtful accounts	(6)	(4)
Changes in assets and liabilities:
Receivables	(243)	6,731
Inventories	700	(1,526)
Accounts payable	229	(550)
Accrued liabilities and expenses	(595)	(452)
Deferred revenue	498	(600)
Other assets and liabilities	(240)	(1,587)
Net cash provided by operating activities	1,804	4,192
Cash Flows from Investing Activities
Purchases of short-term investments	(669)	(2,243)
Sales of short-term investments	988	737
Capital expenditures	(502)	(297)
Capital expenditures-intangibles	(93)
Net cash used for investing activities	(276)	(1,803)
Cash Flows from Financing Activities
Payments to on lines of credit and short-term borrowings, net	(53)	(1,153)
Proceeds from stock plans	201	15
Cash payment for shares surrendered upon vesting of restricted stock units to cover taxes	(15)	(17)
Net cash provided by (used for) financing activities	133	(1,155)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(54)	86
Net Increase in Cash and Cash Equivalents	1,607	1,320
Cash, Cash Equivalents and Restricted Cash, July 1	5,996	3,943
Cash, Cash Equivalents and Restricted Cash, September 30	7,603	5,263
Supplemental Disclosure of Cash Flow Information
Cash paid during the period for interest	29	50
Cash paid during the period for income taxes	277	375
Cash and cash equivalents	7,416
Restricted cash included in Short-term investments	187
Cash, Cash Equivalents and Restricted Cash, September 30	$ 7,603	$ 5,263