Note 1 - Basis of Presentation and Nature of Operations (Details Textual)		3 Months Ended	12 Months Ended
	Apr. 21, 2025 USD ($)	Mar. 31, 2026 a shares	Dec. 31, 2024 USD ($)	Mar. 31, 2024 USD ($)	Sep. 30, 2025 shares
Number of Reportable Segments		2
HC Government Realty Trust, Inc [Member] | Minimum [Member]
Area of Real Estate Property (Acre) | a		10,000
HC Government Realty Trust, Inc [Member] | Maximum [Member]
Area of Real Estate Property (Acre) | a		100,000
HC Government Realty Trust, Inc [Member]
Ownership Percentage		28.00%			28.00%
HC Government Realty Trust, Inc [Member] | Common Stock of Investee [Member]
Investment Owned, Balance, Shares (in shares) | shares		250			250
HC Government Realty Trust, Inc [Member] | Series B Cumulative Convertible Preferred Stock [Member]
Investment Owned, Balance, Shares (in shares) | shares		1,025,000			1,025,000
Investment Interest Rate		10.00%
Management Advisory Services [Member] | Related Captive Managing General Agency [Member]
Related Party Transaction, Amounts of Transaction			$ 200,000
Management Advisory Services [Member] | Reinsurance Intermediary [Member]
Related Party Transaction, Amounts of Transaction				$ 50,000
Management Advisory Services [Member] | HP Risk Solutions, LLC [Member]
Related Party Transaction, Amounts of Transaction	$ 6,000,000