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Note 6 - Goodwill (Details Textual) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Jun. 30, 2021 USD ($)
Number of Reporting Units			7
Goodwill, Impairment Loss			$ 7.6
Engineering Technologies Group [Member]
Goodwill, Impairment Loss	$ 7.6		$ 7.6
Refrigerated Solutions Group [Member]
Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down		$ 7.7

X

- Definition

Amount, before tax, of (gain) loss recognized for the (reversal of write-down) write-down to fair value, less cost to sell, of a disposal group. Excludes discontinued operations.

+ References

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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+ References

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