Note 2 - Investments - Mortgage Loans by Loan-to-Value Ratio (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Total commerical mortgages	$ 962,690
Debt-to-Value Ratio, 20 to 30 Percent [Member]
Total commerical mortgages	175,954
Debt-to-Value Ratio, 10 to 20 Percent [Member]
Total commerical mortgages	$ 786,736

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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