Note 1 - The Company (Details Textual)			12 Months Ended
	Dec. 17, 2018	Apr. 18, 2011	Dec. 31, 2024 USD ($)	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2023 USD ($)		Dec. 31, 2022 USD ($)
Operations Commenced Date		Apr. 18, 2011
Investment Owned, Net Assets, Percentage			100.00%			693.00%
Investment Owned, Fair Value			$ 1,060,474			$ 8,733,779	[1]
Cayman Subsidiaries [Member]
Number of Subsidiaries	3
Subsidiaries [Member]
Number of Subsidiaries				3	3
Product Concentration Risk [Member] | Revenue Benchmark [Member] | Technology Sector [Member]
Concentration Risk, Percentage			50.00%
Minimum [Member] | Technology Sector [Member]
Investment Owned, Fair Value			$ 1,000,000
Maximum [Member] | Technology Sector [Member]
Investment Owned, Fair Value			10,000,000
Investment, Affiliated Issuer, Controlled [Member]
Investment Owned, Fair Value			$ 54,753			$ 8,260,345		$ 39,012,002
Technology Companies [Member] | Investment, Affiliated Issuer, Controlled [Member] | Minimum [Member]
Investment Owned, Net Assets, Percentage			80.00%
Small-cap Stocks Companies [Member] | Investment, Affiliated Issuer, Controlled [Member] | Minimum [Member]
Investment Owned, Net Assets, Percentage			70.00%

[1] Includes warrants whose primary risk exposure is equity contracts.