Consolidated Schedule of Investments - Schedule of Investments (Details) (Parentheticals) - USD ($)	Sep. 30, 2025	Dec. 31, 2024
Investment, percent of net assets	86.60%	100.00%
Investment Owned, Net Assets, Percentage	86.60%	100.00%
Investment, cost	$ 91,867,268	$ 116,682,498
Asset Less Noninvestment Liability, Percent of Net Asset	13.40%	0.00%
Total percentage of net asset value	100.00%	100.00%
Asset Less Noninvestment Liability, Percent of Net Asset	13.40%	0.00%
Equipment Leasing Sector [Member] | EQX Capital, Inc [Member]
Investment, percent of net assets	7.80%	2.80%
Investment Owned, Net Assets, Percentage	7.80%	2.80%
Semiconductor Equipment Sector [Member] | Lyncean Technologies, Inc. [Member] | Series B Preferred Stock [Member]
Investment, percent of net assets	0.00%	0.00%
Investment Owned, Net Assets, Percentage	0.00%	0.00%
Semiconductor Equipment Sector [Member] | Revasum, Inc [Member] | Chess Depositary Interests (CDIs) [Member]
Investment, percent of net assets	0.00%	0.00%
Investment Owned, Net Assets, Percentage	0.00%	0.00%
Investment Sector [Member] | Fidelity Investments [Member]
Investment, percent of net assets	19.90%	70.30%
Investment Owned, Net Assets, Percentage	19.90%	70.30%
Advanced Materials Sector [Member] | UCT Coatings, Inc. [Member] | Common Stock [Member]
Investment, percent of net assets	57.80%	24.50%
Investment Owned, Net Assets, Percentage	57.80%	24.50%
Medical Devices Sector [Member] | IntraOp Medical Corp. [Member]
Investment, percent of net assets	1.10%	2.40%
Investment Owned, Net Assets, Percentage	1.10%	2.40%
Automotive Sector [Member] | Wrightspeed Inc [Member]
Investment, percent of net assets	0.00%	0.00%
Investment Owned, Net Assets, Percentage	0.00%	0.00%