Note 5 - Notes Payable - Notes Payable and Advances from Related Party (Details) - USD ($)	Mar. 31, 2022	Dec. 31, 2021
Notes payable	$ 5,896,486	$ 4,575,000
Avenue Ventures Note Payable [Member]
Notes payable	5,696,486	4,375,000
Short-term Notes Payable [Member]
Notes payable	$ 200,000	$ 200,000

Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19,20)
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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