Note 15 - Subsequent Events (Details Textual) - USD ($)		12 Months Ended
Mar. 01, 2022	Dec. 31, 2021	Dec. 31, 2020
Repayments of Long-term Debt, Total		$ 9,615,246	$ 670,965
HSBC Bank Mortgage Loan [Member] \| Subsequent Event [Member]
Repayments of Long-term Debt, Total	$ 1,700,000

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585

Name:	us-gaap_RepaymentsOfLongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration