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Note 11 - Significant Transaction (Details Textual) - Closure of Our Butler, New Jersey Facility [Member] $ in Thousands	3 Months Ended
	Jun. 30, 2021 USD ($)
Severance Costs	$ 53
Restructuring and Related Cost, Expected Cost Remaining	$ 156

X

- Definition

Amount of expected cost remaining for the specified restructuring cost.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	debit
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X

- Definition

Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

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Period Type:	duration

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- Details

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Namespace Prefix:
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Balance Type:
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