COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands	Dec. 31, 2017 USD ($)
Bahamas [Member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Current lease deposits	$ 8
Non-current lease deposits
Total lease deposits	8
New Jersey [Member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Current lease deposits
Non-current lease deposits	17
Total lease deposits	$ 17

The amount of current lease liabilities. [Refer: Lease liabilities]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2019-01-01
-Name IFRS
-Number 16
-IssueDate 2016-01-13
-Paragraph 47
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=16&date=2016-03-30&anchor=para_47_b&doctype=Standard
-URIDate 2016-03-31

+ Details

Name:	ifrs-full_CurrentLeaseLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of liabilities related to the entity's leases. Lease is a contract, or part of a contract, that conveys the right to use an underlying asset for a period of time in exchange for consideration.

+ References

+ Details

Name:	ifrs-full_LeaseLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of non-current lease liabilities. [Refer: Lease liabilities]

+ References

+ Details

Name:	ifrs-full_NoncurrentLeaseLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	ifrs-full_GeographicalAreasAxis=NYMX_BahamasMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_GeographicalAreasAxis=NYMX_NewJerseyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: