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Finance Receivables (Detail Textuals 2) (USD $)	12 Months Ended
	Mar. 31, 2014
Receivables [Abstract]
Maximum criteria for receivable to be a performing account	61 days
Minimum criteria for receivable to be a non-performing account	61 days
Criteria for receivable to be delinquent account	120 days
Total gross finance receivables	$ 4,390,000

X

- Definition

This element represents the number of days after which the receivable account is considered as delinquent account which will be written off.

+ References

No definition available.

+ Details

Name:	nick_DelinquentAccountCriteriaPeriod
Namespace Prefix:	nick_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

This element represents the number of days after which the receivable account is considered as non- performing account.

+ References

No definition available.

+ Details

Name:	nick_NonPerformingAccountCriteriaMinimumPeriod
Namespace Prefix:	nick_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

This element represents the number of days before which the receivable account is considered as performing account.

+ References

No definition available.

+ Details

Name:	nick_PerformingAccountCriteriaMaximumPeriod
Namespace Prefix:	nick_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount representing an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date. Such amount may include accrued interest receivable in accordance with the terms of the note. The note also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. Excludes amounts related to receivables held-for-sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.10(3))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 10

-Subparagraph 3

-Article 9

+ Details

Name:	us-gaap_NotesReceivableGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

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