Amount of commitment classified as other to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

No definition available.

Name:	us-gaap_OtherCommitmentDueInNextTwelveMonths
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Note 13 - Commitments and Contingencies (Details Textual) - BND [Member] $ in Millions	Apr. 30, 2020 USD ($)	Dec. 31, 2021 USD ($)	Mar. 06, 2019 a
Area Available for Lease (Acre) \| a			984
Lessee, Operating Lease, Liability, to be Paid Per Quarter	$ 1.5
Wetland Mitigation Measures [Member]
Other Commitment, to be Paid, Year One		$ 0.5