XML 42 R34.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Finance Receivables (Detail Textuals) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2019 | Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Purchase of contract loans | $ 1,100,000 | $ 66,572,000 | $ 56,266,000
Direct Loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Percentage of direct loan to total loan portfolio | 5.40% | 5.40% |
Minimum | Direct Loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Finance receivables, net | $ 500 | $ 500 |
Maximum | Direct Loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Finance receivables, net | $ 11,000 | $ 11,000 |

X
- Definition This item represents the percentage of the direct loan in the total loan portfolio. + References No definition available. + Details
Name: | nick_FinanceReceivablesPercentage
Namespace Prefix: | nick_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The cash outflow associated with the acquisition and origination of finance contracts. + References No definition available. + Details
Name: | nick_PurchaseAndOriginationOfFinanceContracts
Namespace Prefix: | nick_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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
- Definition Amount, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919230-210447 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522 + Details
Name: | us-gaap_NotesReceivableNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |