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14. Acquisition Gf&h Company (Details) (USD $)	12 Months Ended
	Dec. 31, 2014
Details
Business Acquisition, Cost of Acquired Entity, Cash Paid	$ 100,000us-gaap_BusinessAcquisitionCostOfAcquiredEntityCashPaid
Subsidiary expenses, detail	$ 2,577njmc_SubsidiaryExpensesDetail

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- Definition

Subsidiary expenses, detail

+ References

No definition available.

+ Details

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Period Type:	duration

X

- Definition

Amount of cash paid to acquire the entity.

+ References

No definition available.

+ Details

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

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- Details

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