Note 2 - Investments - Mortgage Loans by Maturity Date (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
One year or less	$ 2,199,015	$ 2,393,900
After one year through five years	1,576,417	772,236
Total commercial mortgages	$ 3,775,432	$ 3,166,136

The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(c))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

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