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v3.22.4

Note 3 - Revenue 1 (Details Textual) | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Percentage of Revenue Transferred to Customers | 72.00% | 78.00%
Revenue Remaining Performance Obligation, Customers Upon Shipment With Payment Terms | 120 days |

X
- Definition Represents the percentage of revenue under contract manufacturing agreements that was recognized. + References No definition available. + Details
Name: | nsys_PercentageOfRevenueTransferredToCustomers
Namespace Prefix: | nsys_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period in which remaining performance obligation customers upon shipment with payment terms, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | nsys_RevenueRemainingPerformanceObligationCustomersUponShipmentWithPaymentTerms
Namespace Prefix: | nsys_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration