XML 79 R34.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Summary of Significant Accounting Policies (Detail Textuals) | 12 Months Ended
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Mar. 31, 2015
Accounting Policies [Abstract] |
Withholding tax payable percentage | 5.00%nick_DividendDistributionWithholdingTaxPercentage

X
- Definition This element represents the percentage of withholding tax payable by the entity. + References No definition available. + Details
Name: | nick_DividendDistributionWithholdingTaxPercentage
Namespace Prefix: | nick_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration