SCHEDULE OF INVESTMENTS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Cost of investment, securities	$ 14,750	$ 18,611
Fair Value, securities	$ 32,958	$ 27,500
Fair value percentage, securities	96.40%	93.20%
Fair Value industry	$ 32,958	$ 27,500
Net asset value, percent, industry	96.40%	93.20%
Market capitalization	$ 250,000	$ 250,000
Our assets	30.00%	30.00%
Our assets in securities of portfolio	90.40%	91.90%
Net asset value, percent	79.40%	93.20%
Total assets, percent	74.40%	91.90%
Our investments, percent	82.40%	100.00%
Fair Value	$ 32,958	$ 27,500
Cost of Investment	14,750	18,611
Preferred stock [Member]
Fair Value	$ 2,658
Fair Value as Percentage of Net Assets	7.80%
Cost of Investment	$ 2,750
Options and warrants [Member]
Fair Value	$ 1,300
Fair Value as Percentage of Net Assets	3.80%
Cost of Investment	$ 0
Energy [Member]
Fair Value	$ 27,158	$ 27,500
Fair Value as Percentage of Net Assets	79.40%	93.20%
Environmental [Member]
Fair Value	$ 5,800
Fair Value as Percentage of Net Assets	17.00%
Majority Owned Investments [Member]
Investment	50.00%
Limited Liability Company Investments Securities [Member]
Fair Value	$ 14,000	$ 17,000
Fair Value as Percentage of Net Assets	40.90%	57.60%
Cost of Investment	$ 0	$ 8,111
Secured And Subordinated Debt [Member]
Fair Value	$ 15,000	$ 10,500
Fair Value as Percentage of Net Assets	43.90%	35.60%
Cost of Investment	$ 12,000	$ 10,500