v3.26.1
Consolidated Schedule of Investments - Schedule of Investments (Details) (Parentheticals) - USD ($)
Jun. 30, 2026
Dec. 31, 2025
Investment, cost $ 89,862,162 $ 89,914,530
Investment, Identifier [Axis]: CDIsRevasumIncSemiconductorEquipmentMember    
Investment, cost [1],[3] 9,268,218 [2] $ 9,268,218 [4]
Investment, Identifier [Axis]: CommonStockUCTCoatingsIncAdvancedMaterialsMember    
Investment, percent of net assets   71.30%
Investment, cost [2],[3],[5] 662,235 [6] $ 662,235 [7]
Investment, Identifier [Axis]: CommonStockWrightspeedIncAutomotiveMember    
Investment, cost [1],[2],[3] $ 7,460,851 [6] 7,460,851 [7]
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorMember    
Investment, percent of net assets 0.80%  
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorNoteEightMember    
Investment, cost [1],[2],[8] $ 1,000,000 [6] 1,000,000 [7]
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorNoteEighteenMember    
Investment, cost [1],[8] 500,000 [2],[6] 500,000 [4],[7]
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorNoteElevenMember    
Investment, cost [1],[2],[8] 150,000 [6] 150,000 [7]
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorNoteFifteenMember    
Investment, cost [1],[8] 500,000 [2],[6] 500,000 [4],[7]
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorNoteFiveMember    
Investment, cost [1],[2],[8] 500,000 [6] 500 [7]
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorNoteFourMember    
Investment, cost [1],[2],[8] 500,000 [6] 500 [7]
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorNoteFourteenMember    
Investment, cost [1],[2],[8] 350,000 [6] 350,000 [7]
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorNoteNineMember    
Investment, cost [1],[2],[8] 200,000 [6] 200,000 [7]
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorNoteNineteenMember    
Investment, cost [1],[8] 500,000 [2],[6] 500,000 [4],[7]
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorNoteOneMember    
Investment, cost [1],[2],[8] 500,000 [6] 500,000 [7]
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorNoteSevenMember    
Investment, cost [1],[2],[8] 10,961,129 [6] 10,961,000 [7]
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorNoteSeventeenMember    
Investment, cost [1],[8] 1,300,000 [2],[6] 1,300,000 [4],[7]
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorNoteSixMember    
Investment, cost [1],[2],[8] 500,000 [6] 500,000 [7]
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorNoteSixteenMember    
Investment, cost [1],[8] 700,000 [2],[6] 700,000 [4],[7]
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorNoteTenMember    
Investment, cost [1],[2],[8] 500,000 [6] 500,000 [7]
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorNoteThirteenMember    
Investment, cost [1],[2],[8] 1,000,000 [6] 1,000,000 [7]
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorNoteThreeMember    
Investment, cost [1],[2],[8] 500,000 [6] 500,000 [7]
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorNoteTwelveMember    
Investment, cost [1],[2],[8] 400,000 [6] 400,000 [7]
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorNoteTwentyMember    
Investment, cost [1],[8] 750,000 [2],[6] 750,000 [4],[7]
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorNoteTwentyOneMember    
Investment, cost [1],[8] 500,000 [2],[6] 500,000 [4],[7]
Investment, Identifier [Axis]: ConvertibleNoteIntraopMedicalCorpMedicalDevicesSectorNoteTwoMember    
Investment, cost [1],[2],[8] 1,000,000 [6] $ 1,000,000 [7]
Investment, Identifier [Axis]: IntraopMedicalCorpMedicalDevicesSectorMember    
Investment, percent of net assets   0.60%
Investment, Identifier [Axis]: InvestmentCompanyFidelityInvestmentsMoneyMarketTreasuryPortfolioClassIMember    
Investment, cost [9] $ 3,903 [10] $ 56,271 [11]
Investment, Identifier [Axis]: InvestmentCompanyMember    
Investment, percent of net assets 0.90% 23.90%
Investment, Identifier [Axis]: InvestmentPortfolioMember    
Investment, percent of net assets 33.30% 95.80%
Investment, cost $ 89,862,162 $ 89,914,530
Asset Less Noninvestment Liability, Percent of Net Asset 133.30% 195.80%
Total percentage of net asset value 100.00% 100.00%
Investment, Identifier [Axis]: LynceanTechnologiesIncSemiconductorEquipmentMember    
Investment, percent of net assets 0.00% 0.00%
Investment, cost [3],[4],[7]   $ 1,000,000
Investment, Identifier [Axis]: PreferredStockSeriesAAWrightspeedIncAutomotiveOneMember    
Investment, cost [1],[2],[3] $ 17,355,887 [6] 17,355,887 [7]
Investment, Identifier [Axis]: PreferredStockSeriesBLynceanTechnologiesIncSemiconductorEquipmentMember    
Investment, cost [2],[3],[6] 1,000,000  
Investment, Identifier [Axis]: PreferredStockSeriesCIntraopMedicalCorpMedicalDevicesSectorMember    
Investment, cost [1],[3] $ 26,299,939 [2],[6] $ 26,299,939 [4],[7]
Investment, Identifier [Axis]: RevasumIncSemiconductorEquipmentMember    
Investment, percent of net assets 0.00% 0.00%
Investment, Identifier [Axis]: TermNoteIntraopMedicalCorpMedicalDevicesSectorNoteOneMember    
Investment, cost [1],[8] $ 2,000,000 [2],[6] $ 2,000,000 [4],[7]
Investment, Identifier [Axis]: TermNoteIntraopMedicalCorpMedicalDevicesSectorNoteTwoMember    
Investment, cost [1],[8] $ 3,000,000 [2],[6] $ 3,000,000 [4],[7]
Investment, Identifier [Axis]: UCTCoatingsIncAdvancedMaterialsMember    
Investment, percent of net assets 31.60%  
Investment, Identifier [Axis]: WrightspeedIncAutomotiveMember    
Investment, percent of net assets 0.00% 0.00%
[1] Controlled investments.
[2] Fair Value Level 3 security (-32.4% of net assets).
[3] Non-income producing security.
[4] Fair Value Level 3 security (-71.9% of net assets).
[5] Affiliated issuer.
[6] Restricted security. Fair Value is determined in good faith by Firsthand Capital Management, Inc. ("FCM" or the "Advisor") as the valuation designee under Rule 2a-5 under the 1940 Act, subject to oversight by the Board (see Note 3). At June 30, 2026, we held $144,732 (or (32.4)% of net assets) in restricted securities (see Note 2).
[7] Restricted security. Fair Value is determined in good faith by Firsthand Capital Management, Inc. ("FCM" or the "Advisor") as the valuation designee under Rule 2a-5 under the 1940 Act, subject to oversight by the Board (see Note 3). At December 31, 2025, we held $169,165 or (71.9)% of net assets) in restricted securities (see Note 2).
[8] Security whose interest accrues until maturity however, based on December 31, 2025 valuation no such interest accrued during period ended December 31, 2025.
[9] The Fidelity Investments Money Market Treasury Portfolio invests primarily in U.S. Treasury securities.
[10] The rate shown is the 7 day annualized yield at June 30, 2026.
[11] The rate shown is the 7 day annualized yield at December 31, 2025