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Second percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

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No definition available.

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Amount receivable from broker-dealers from commissions for executing orders on the floor of an exchange.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3)(a)(4))
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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

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Percentage employer matches of the employee's percentage contribution matched.

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Percentage of employer's matching contributions to a defined contribution plan that vests in a given year.

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No definition available.

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- Definition

This is the amount of cash advanced as security in return for borrowing securities from another party.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
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- Definition

Value of input used to measure investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
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- Definition

Amount of right to receive cash and securities on deposit with broker-dealers to demonstrate an intention to complete a purchase (good faith deposit) and collateral deposited by counterparty to cover the credit risk assumed (margin deposit).

+ References

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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No definition available.

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Amount receivable from broker-dealers and clearing organizations, including, but not limited to, securities failed-to-deliver, certain deposits for securities borrowed, open transactions, good faith and margin deposits, commissions and floor brokerage receivables.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Period from grant to expiration date of share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

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Note 3 - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Millions		6 Months Ended
	May 21, 2024	Jun. 30, 2026	Jan. 16, 2026	Dec. 31, 2025	Jun. 17, 2025
Receivable from Broker-Dealer and Clearing Organization		$ 6.0
Deposits Paid for Securities Borrowed, at Carrying Value		0.5		$ 1.4
Commissions and Floor Brokerage Receivables		4.2		2.1
Good Faith and Margin Deposit with Broker-Dealer		1.3		$ 0.5
Contract with Customer, Liability, Revenue Recognized Within Liability Balance		7.8
Contract with Customer, Liability, Current		3.2
Contract with Customer, Liability, Revenue Recognized		$ 0.2
Defined Contribution Plan, Employer Matching Contribution, Percent of Match		50.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay		3.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay, Secondary Percentage		2.00%
Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage		100.00%
Share-Based Payment Arrangement, Option [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)		10 years
Share-Based Payment Arrangement, Option [Member] \| Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		1 year
Share-Based Payment Arrangement, Option [Member] \| Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		5 years
Measurement Input, Implied Probability Rate [Member]
Equity Securities, FV-NI, Measurement Input		0.15
Variable Interest Entity, Not Primary Beneficiary [Member]
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage	50.00%
American Ventures Management LLC [Member]
Subsidiary, Ownership Percentage, Parent					90.00%
American VO IM LLC [Member]
Subsidiary, Ownership Percentage, Parent		65.00%	65.00%
American Ventures IM LLC [Member]
Subsidiary, Ownership Percentage, Parent					90.00%
American VO Manager LLC [Member]
Subsidiary, Ownership Percentage, Parent		65.00%	65.00%