Consolidated Statements Of Cash Flow $ in Thousands	9 Months Ended
	Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)
Cash Flows from Operating Activities
Net income	$ 1,374	$ 2,944
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,692	1,701
Stock compensation expense	533	791
Asset impairment and related inventory write-down		(59)
Deferred income taxes	186	(593)
Loss on disposal of assets	15	14
Allowance for doubtful accounts	124	121
Changes in assets and liabilities:
Receivables	1,216	3,594
Inventories	339	(3,237)
Accounts payable	(783)	(1,010)
Accrued liabilities and expenses	(1,406)	(105)
Deferred revenue	(462)	(431)
Other assets and liabilities	(2,200)	(1,136)
Net cash provided by operating activities	628	2,594
Cash Flows from Investing Activities
Purchases of short-term investments	(2,199)	(4,569)
Sales of short-term investments	2,431	3,686
Capital expenditures	(809)	(481)
Capital expenditures - intangibles	(311)	(322)
Net cash used for investing activities	(888)	(1,686)
Cash Flows from Financing Activities
Payments on lines of credit and short-term borrowings, net	(155)	(137)
Proceeds from stock plans	329	471
Cash payment for shares surrendered upon vesting of restricted stock units to cover taxes	(55)	(19)
Net cash provided by financing activities	119	315
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(150)	271
Net (Decrease) Increase in Cash, Cash Equivalents and Restricted Cash	(291)	1,494
Cash, Cash Equivalents and Restricted Cash, July 1	5,996	3,943
Cash, Cash Equivalents and Restricted Cash, March 31	5,705	5,437
Supplemental Disclosure of Cash Flow Information
Cash paid during the period for interest	73	211
Cash paid during the period for income taxes	553	605
Cash and cash equivalents	5,429
Restricted Cash included in Short-term Investments	276
Cash, Cash Equivalents and Restricted Cash, March 31	$ 5,705	$ 5,437