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Note 15 - Goodwill (Details Textual) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2019	Dec. 31, 2020
Goodwill, Impairment Loss		$ 1,400,000
Goodwill, Ending Balance		$ 0	$ 0
Clever Container Company, L.L.C. [Member]
Goodwill, Impairment Loss	$ 220,000
Flexo Universal [Member]
Goodwill, Impairment Loss	$ 1,033,000

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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- Definition

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