XML 40 R34.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Finance Receivables - Selected information on entire portfolio of Company (Details) - Contract | 9 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2023 | Mar. 31, 2023
Contract Portfolio |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Average APR | 22.70% | 22.80%
Average discount | 6.40% | 6.80%
Average term (months) | 49 months | 49 months
Number of active contracts | 9,088 | 14,081
Direct Loan Portfolio |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Average APR | 27.30% | 29.10%
Average term (months) | 33 months | 28 months
Number of active contracts | 2,485 | 5,322

X
- Definition Represents number of active contracts. + References No definition available. + Details
Name: | nick_NumberOfActiveContracts
Namespace Prefix: | nick_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents weighted average discount rate on the entire portfolio. + References No definition available. + Details
Name: | nick_WeightedAverageDiscountRate
Namespace Prefix: | nick_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents weighted average percent rate on the entire portfolio. + References No definition available. + Details
Name: | nick_WeightedAveragePercentRate
Namespace Prefix: | nick_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents weighted average term on the entire portfolio. + References No definition available. + Details
Name: | nick_WeightedAverageTerm
Namespace Prefix: | nick_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=nick_ContractReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConsumerLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |