Represents gross proceeds from sale of manufacturing facility.

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Amount of the cumulative effect on retained earnings net of related income tax effect.

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- Definition

Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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- Definition

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property.

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Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($)		3 Months Ended		9 Months Ended
	Jul. 01, 2018	Jun. 30, 2019	Mar. 31, 2019	Mar. 31, 2019	Mar. 31, 2018
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property				$ 22,000	$ 28,000
Other Operating Income (Expense) [Member]
Foreign Currency Transaction Gain (Loss), before Tax, Total			$ 183,000
AOCI Attributable to Parent [Member]
Foreign Currency Transaction Gain (Loss), before Tax, Total			$ 3,498
Forecast [Member]
Proceeds from Sale of Manufacturing Facility, Gross		$ 12,000,000
Forecast [Member] \| Minimum [Member]
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property		3,000,000
Forecast [Member] \| Maximum [Member]
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property		$ 5,500,000
Accounting Standards Update 2014-09 [Member]
Cumulative Effect on Retained Earnings, Net of Tax, Total	$ 591,000