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Note 8 - Leases	3 Months Ended
	Mar. 31, 2020
Notes to Financial Statements
Lessee, Operating Leases [Text Block]	8. Leases  No update required for interim reporting periods.

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- References

No definition available.

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- Definition

The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-URI http://asc.fasb.org/subtopic&trid=77888251

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