| 
           Intangible Assets - Schedule of Intangible Assets (Details) (USD $) 
         | 
        9 Months Ended | |
|---|---|---|
| 
           Mar. 31, 2015 
         | 
        
           Jun. 30, 2014 
         | 
      |
| Intangible Assets - June 30, 2014 - Cost | $ 54,927,447us-gaap_FiniteLivedIntangibleAssetsGross | |
| Additions | ||
| Effect of Translation Adjustment | (2,729,529)us-gaap_FiniteLivedIntangibleAssetsTranslationAdjustments | |
| Accumulated Amortization | (27,420,369)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization | |
| Net Balance - March 31, 2015 | 24,777,549us-gaap_FiniteLivedIntangibleAssetsNet | 28,803,018us-gaap_FiniteLivedIntangibleAssetsNet | 
| Product Licenses [Member] | ||
| Intangible Assets - June 30, 2014 - Cost | 
48,632,368us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ntwk_ProductLicensesMember  | 
        |
| Additions | ||
| Effect of Translation Adjustment | 
(2,729,529)us-gaap_FiniteLivedIntangibleAssetsTranslationAdjustments / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ntwk_ProductLicensesMember  | 
        |
| Accumulated Amortization | 
(21,125,290)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ntwk_ProductLicensesMember  | 
        |
| Net Balance - March 31, 2015 | 
24,777,549us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ntwk_ProductLicensesMember  | 
        |
| Customer Lists [Member] | ||
| Intangible Assets - June 30, 2014 - Cost | 
6,052,377us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerListsMember  | 
        |
| Additions | ||
| Effect of Translation Adjustment | ||
| Accumulated Amortization | 
(6,052,377)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerListsMember  | 
        |
| Net Balance - March 31, 2015 | ||
| Technology [Member] | ||
| Intangible Assets - June 30, 2014 - Cost | 
242,702us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ntwk_TechnologyMember  | 
        |
| Additions | ||
| Effect of Translation Adjustment | ||
| Accumulated Amortization | 
(242,702)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ntwk_TechnologyMember  | 
        |
| Net Balance - March 31, 2015 | 
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- Definition 
          Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination. No definition available. 
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- Definition 
          Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount of increase (decrease) to assets, excluding financial assets and goodwill, lacking physical substance with a finite life for foreign currency translation adjustments. No definition available. 
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