XML 56 R45.htm IDEA: XBRL DOCUMENT
v3.25.1

Investment in Equity Securities (Details) - USD ($) |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Aug. 31, 2021 | Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Investment in Equity Securities [Line Items] |  |  |  |
Unit of node capital (in Shares) | 165.27 |  |  |
Percentage of node capital | 1.11% |  |  |
Aggregate amount | $ 250,000 |  |  |
Fund and received proceeds |  |  |  | $ 0
Realized gain (loss) |  |  | $ 225,229 |
Node Capital Token Opportunity Fund LP [Member] |  |  |  |
Investment in Equity Securities [Line Items] |  |  |  |
Realized gain (loss) |  |  | $ 274,731 |

X
- Definition Fund and received proceeds + References No definition available. + Details
Name: | olb_FundAndReceivedProceeds
Namespace Prefix: | olb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Value of capital units or capital shares. This element is relevant to issuers of face-amount certificates and registered investment companies. + References No definition available. + Details
Name: | us-gaap_CapitalUnits
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number of authorized capital units or capital shares. This element is relevant to issuers of face-amount certificates and registered investment companies. + References No definition available. + Details
Name: | us-gaap_CapitalUnitsAuthorized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
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 No definition available. + Details
Name: | us-gaap_InvestmentHoldingsOtherThanSecuritiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of public utility's approved equity to capital, including debt and equity. + References No definition available. + Details
Name: | us-gaap_PublicUtilitiesApprovedEquityCapitalStructurePercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of realized gain (loss) on investment. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(3)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 + Details
Name: | us-gaap_RealizedInvestmentGainsLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=olb_NodeCapitalTokenOpportunityFundLPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |