Note 3 - Revenue (Details Textual)	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023
Percentage of Revenue Transferred to Customers	74.00%	74.00%

Represents the percentage of revenue under contract manufacturing agreements that was recognized.

No definition available.

Name:	nsys_PercentageOfRevenueTransferredToCustomers
Namespace Prefix:	nsys_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration