Short-Term Investments - Schedule of Short-Term Investments (Details) - Total Short-Term Investments [Member]	6 Months Ended
Jun. 30, 2026 USD ($)
Schedule of Short-Term Investments [Line Items]
Balance, January 1, 2026	$ 37,664,254
Purchases	93,241,113
Maturing	(54,314,851)
Early withdrawals	(57,582,511)
Fair value adjustment	(280,904)
Balance, March 31, 2026	18,727,101
Fixed Rate Deposits [Member]
Schedule of Short-Term Investments [Line Items]
Balance, January 1, 2026
Purchases	4,800,000
Maturing	(4,800,000)
Early withdrawals
Fair value adjustment
Balance, March 31, 2026
Equity Linked Notes [Member]
Schedule of Short-Term Investments [Line Items]
Balance, January 1, 2026	11,310,650
Purchases	70,792,927
Maturing	(27,323,596)
Early withdrawals	(35,920,114)
Fair value adjustment	(132,766)
Balance, March 31, 2026	18,727,101
Bond Linked Notes [Member]
Schedule of Short-Term Investments [Line Items]
Balance, January 1, 2026	14,766,470
Purchases	7,000,000
Maturing	(22,191,255)
Early withdrawals
Fair value adjustment	424,785
Balance, March 31, 2026
US Treasury Bonds [Member]
Schedule of Short-Term Investments [Line Items]
Balance, January 1, 2026	11,587,134
Purchases	10,648,186
Maturing
Early withdrawals	(21,662,397)
Fair value adjustment	(572,923)
Balance, March 31, 2026

Represents the amount of early withdrawals.

No definition available.

Name:	alfa_EarlyWithdrawalsOfShortTermInvestments
Namespace Prefix:	alfa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of fair value adjustment of short term investments.

+ References

No definition available.

+ Details

Name:	alfa_FairValueAdjustmentOfShortTermInvestments
Namespace Prefix:	alfa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The net amount paid (received) by the reporting entity through acquisition or sale and maturities of short-term investments with an original maturity that is three months or less which qualify for treatment as an investing activity based on management's intention and intended by management to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 12
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-12

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 13
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-13

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-9

+ Details

Name:	us-gaap_PaymentsForProceedsFromShortTermInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of cash outflow to acquire investments classified as other.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-13

+ Details

Name:	us-gaap_PaymentsToAcquireOtherInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- 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/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480657/210-10-S50-8

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_ShortTermDebtLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.

+ References

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(8))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_ShortTermInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_ShortTermDebtTypeAxis=us-gaap_ShortTermInvestmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InvestmentTypeAxis=alfa_FixedRateDepositsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InvestmentTypeAxis=alfa_EquityLinkedNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InvestmentTypeAxis=alfa_BondLinkedNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InvestmentTypeAxis=alfa_UnitedStatesTreasuryBondMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: