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Accounts receivable (Details Narrative)	Dec. 31, 2023 CAD ($)
One Client [Member]
Trade Receivable	$ 1,427,188

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Namespace Prefix:	nxt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: