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Note 1 - Description of Business (Details Textual)	Dec. 31, 2019 a
Area of Land	45,000

X

- Definition

Area of land held.

+ References

No definition available.

+ Details

Name:	us-gaap_AreaOfLand
Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant