XML 44 R31.htm IDEA: XBRL DOCUMENT
v3.23.2

Organization and Basis of Presentation (Detail Textuals) | 12 Months Ended
--- | ---
Mar. 31, 2023 Subsidiary
United States |
Organization And Basis Of Presentation [Line Items] |
Number of subsidiaries | 2

X
- Definition Number of subsidiaries. + References No definition available. + Details
Name: | nick_NumberOfSubsidiaries
Namespace Prefix: | nick_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Organization and basis of presentation. + References No definition available. + Details
Name: | nick_OrganizationAndBasisOfPresentationLineItems
Namespace Prefix: | nick_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |