Note 6 - Investments - Unrealized Loss Position (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
US Government Agencies Debt Securities [Member]
Less than 12 months, estimated fair value	$ 3,142	$ 2,477
Less than 12 Months	51	21
Greater than 12 months, estimated fair value	10,476	2,370
Greater than 12 Months	314	26
Estimated fair value	13,618	4,847
Total, debt securities	365	47
US States and Political Subdivisions Debt Securities [Member]
Less than 12 months, estimated fair value	578	300
Less than 12 Months	5	0
Greater than 12 months, estimated fair value	341	1,088
Greater than 12 Months	9	20
Estimated fair value	919	1,388
Total, debt securities	14	20
Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member]
Less than 12 months, estimated fair value	5,731	336
Less than 12 Months	216	1
Greater than 12 months, estimated fair value	5,454	3,433
Greater than 12 Months	369	225
Estimated fair value	11,185	3,769
Total, debt securities	585	226
Asset-Backed Securities [Member]
Less than 12 months, estimated fair value	1,222	0
Less than 12 Months	26	0
Greater than 12 months, estimated fair value	132	417
Greater than 12 Months	10	11
Estimated fair value	1,354	417
Total, debt securities	36	11
Corporate Debt Securities [Member]
Less than 12 months, estimated fair value	5,498	408
Less than 12 Months	124	0
Greater than 12 months, estimated fair value	5,140	6,113
Greater than 12 Months	151	183
Estimated fair value	10,638	6,521
Total, debt securities	275	183
Fixed Maturities [Member]
Less than 12 months, estimated fair value	16,171	3,521
Less than 12 Months	422	22
Greater than 12 months, estimated fair value	21,543	13,421
Greater than 12 Months	853	465
Estimated fair value	37,714	16,942
Total, debt securities	$ 1,275	$ 487

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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