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Summary of Significant Accounting Policies (Detail Textuals)	12 Months Ended
	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

X

- Details

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