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Note 2 - Accounting Policies (Detail) | 6 Months Ended
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Dec. 31, 2012
Percentage Probability Of Impairment Of Indefinite-Lived Asset | 50.00%

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- Definition Percentage Probability Of Impairment Of Indefinite-Lived Asset + References No definition available. + Details
Name: | ntwk_PercentageProbabilityOfImpairmentOfIndefiniteLivedAsset
Namespace Prefix: | ntwk_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration