Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ / shares in Thousands	Jun. 30, 2022	Dec. 31, 2021
Fixed maturities, cost	$ 38,931,000	$ 35,889,000
Equity investments, cost	187,000	1,147,000
Real estate investments, cost	10,225,000	10,225,000
Property and equipment, accumulated depreciation	25,211,000	24,224,000
Intangible assets accumulated amortization	$ 23,349,000	$ 20,333,000
Temporary equity, issued (in shares)	169,733
Temporary equity, outstanding (in shares)	169,733
Temporary equity, redemption	$ 6,700,000
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, authorized (in shares)	50,000,000	50,000,000
Common stock, issued (in shares)	23,130,064	23,130,064
Common stock, outstanding (in shares)	22,882,614	22,882,614
Treasury stock (in shares)	247,450	247,450
Redeemable Class A Preferred Stock [Member]
Temporary equity, par value (in dollars per share)	$ 0	$ 0
Temporary equity, authority (in shares)	1,000,000	1,000,000
Temporary equity, issued (in shares)	169,733	169,733
Temporary equity, outstanding (in shares)	169,733	169,733
Temporary equity, redemption	$ 6,655	$ 6,497
Other Receivables
Allowance for doubtful accounts	5,000	5,000
Service Fees [Member]
Allowance for doubtful accounts	$ 239,000	$ 241,000