Note 1 - The Company (Details Textual)			6 Months Ended	12 Months Ended
Note 1 - The Company (Details Textual)	Dec. 17, 2018	Apr. 18, 2011	Jun. 30, 2026 USD ($)	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2025 USD ($)
Operations Commenced Date		Apr. 18, 2011
Investment Owned, Fair Value			$ 148,635			$ 225,436
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
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%