Note 13 - Dividend Restrictions and Statutory Requirements (Details Textual) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments with Regulatory Approval	$ 0
Statutory Loss	574,228	$ 16,483,222
AmerInst Insurance Company, Ltd. (AMIC Ltd.) [Member]
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments with Regulatory Approval	$ 600,000

Amount of dividends that can be declared or paid with approval of regulatory agency.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant