XML 50 R40.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Investments - Summary of the Significant Unobservable Inputs to Determine the Fair Value of Level 3 Portfolio Investments (Details) - USD ($) | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Totals | $ 70,818,041 | $ 77,125,712
Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Market Approach EBITDA Multiple | 51,156,463 | 38,969,017
Market Approach Liquidation Seniority | 4,730,196 | 8,614,842
Market Approach Revenue Multiple | 700,000 | 6,013,984
Market Approach Transaction Pricing | 14,231,382 | 16,218,219
Totals | 70,818,041 | 69,816,062
Level 3 | Non-Control/Non-Affiliate Equity |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Market Approach EBITDA Multiple | 0 | 72,522
Market Approach Revenue Multiple | 700,000 | 700,000
Market Approach Transaction Pricing | 100,063 | 100,063
Totals | 800,063 | 872,585
Level 3 | Non-Control/Non-Affiliate Loan and Debt |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Market Approach EBITDA Multiple | 13,619,638 | 6,829,263
Market Approach Liquidation Seniority | 2,230,196 | 4,465,882
Totals | 15,849,834 | 11,295,145
Level 3 | Total Non-Control/Non-Affiliate |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Market Approach EBITDA Multiple | 13,619,638 | 6,901,785
Market Approach Liquidation Seniority | 2,230,196 | 4,465,882
Market Approach Revenue Multiple | 700,000 | 700,000
Market Approach Transaction Pricing | 100,063 | 100,063
Totals | 16,649,897 | 12,167,730
Level 3 | Affiliate Equity |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Market Approach EBITDA Multiple | 7,061,384 | 5,889,991
Market Approach Revenue Multiple |  | 3,223,984
Market Approach Transaction Pricing | 9,875,000 | 10,550,000
Totals | 16,936,384 | 19,663,975
Level 3 | Affiliate Loan and Debt |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Market Approach EBITDA Multiple | 30,475,441 | 26,177,241
Market Approach Revenue Multiple |  | 2,090,000
Market Approach Transaction Pricing | 4,256,319 | 5,568,156
Totals | 34,731,760 | 33,835,397
Level 3 | Total Affiliate |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Market Approach EBITDA Multiple | 37,536,825 | 32,067,232
Market Approach Revenue Multiple |  | 5,313,984
Market Approach Transaction Pricing | 14,131,319 | 16,118,156
Totals | 51,668,144 | 53,499,372
Level 3 | Control Debt |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Market Approach Liquidation Seniority | 2,500,000 | 4,148,960
Totals | 2,500,000 | 4,148,960
Level 3 | Total Control |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Market Approach Liquidation Seniority | 2,500,000 | 4,148,960
Totals | $ 2,500,000 | $ 4,148,960

X
- Definition Investments fair value market approach ebitda multiple. + References No definition available. + Details
Name: | rand_InvestmentsFairValueMarketApproachEbitdaMultiple
Namespace Prefix: | rand_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Investments fair value market approach liquidation seniority. + References No definition available. + Details
Name: | rand_InvestmentsFairValueMarketApproachLiquidationSeniority
Namespace Prefix: | rand_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Investments fair value market approach revenue multiple. + References No definition available. + Details
Name: | rand_InvestmentsFairValueMarketApproachRevenueMultiple
Namespace Prefix: | rand_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Investments fair value market approach transaction pricing. + References No definition available. + Details
Name: | rand_InvestmentsFairValueMarketApproachTransactionPricing
Namespace Prefix: | rand_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2E -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_InvestmentsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=rand_NonControlAndNonAffiliateEquityInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=rand_NonControlAndNonAffiliateLoanAndDebtInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=rand_NonControlAndNonAffiliateInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=rand_AffiliateEquityInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=rand_AffiliateLoanAndDebtInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=rand_AffiliateInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=rand_ControlDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=rand_ControlInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |