| 
           Intangible Assets (Details Narrative) (USD $) 
         | 
        3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
| 
           Dec. 31, 2014 
         | 
        
           Dec. 31, 2013 
         | 
        
           Dec. 31, 2014 
         | 
        
           Dec. 31, 2013 
         | 
      |
| Product Licenses [Member] | ||||
| Finite-lived unamortized amount | 
$ 25,943,752us-gaap_FiniteLivedLicenseAgreementsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ntwk_ProductLicensesMember  | 
        
$ 25,943,752us-gaap_FiniteLivedLicenseAgreementsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ntwk_ProductLicensesMember  | 
        ||
| Amortization expenses of intangible assets | 
868,690us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ntwk_ProductLicensesMember  | 
        
523,825us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ntwk_ProductLicensesMember  | 
        
1,751,365us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ntwk_ProductLicensesMember  | 
        
957,384us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ntwk_ProductLicensesMember  | 
      
| Finite-lived intangible assets, amortization over period | 9 years 3 months | |||
| Customer Lists [Member] | ||||
| Finite-lived unamortized amount | 
86,912us-gaap_FiniteLivedLicenseAgreementsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerListsMember  | 
        
86,912us-gaap_FiniteLivedLicenseAgreementsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerListsMember  | 
        ||
| Finite-lived intangible asset, useful life | 1 year 9 months | |||
| Amortization expenses of intangible assets | 
12,636us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerListsMember  | 
        
18,832us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerListsMember  | 
        
26,004us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerListsMember  | 
        
48,880us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerListsMember  | 
      
| Finite-lived intangible assets, amortization over period | 5 years | |||
| Technology [Member] | ||||
| Finite-lived intangible asset, useful life | 5 years | |||
| Amortization expenses of intangible assets | 
$ 114,368us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ntwk_TechnologyMember  | 
        
$ 12,658us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ntwk_TechnologyMember  | 
        
$ 114,368us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ntwk_TechnologyMember  | 
        
$ 24,777us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ntwk_TechnologyMember  | 
      
| X | ||||||||||
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- Definition 
          The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Remaining amortization period of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available. 
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- Definition 
          Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available. 
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- Definition 
          Gross carrying amount as of the balance sheet date of certain rights acquired to exercise a certain privilege or pursue a particular business or occupation and which is deemed to have a finite economic life. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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