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           Property and Equipment - Schedule of Property and Equipment (Details) (USD $) 
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           Mar. 31, 2015 
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           Jun. 30, 2014 
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| Property, Plant and Equipment [Line Items] | ||
| Property and Equipment, Subtotal | $ 43,702,460us-gaap_PropertyPlantAndEquipmentGross | $ 45,660,516us-gaap_PropertyPlantAndEquipmentGross | 
| Accumulated Depreciation | 17,291,645us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment | (15,939,388)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment | 
| Property and Equipment, Net | 26,410,815us-gaap_PropertyPlantAndEquipmentNet | 29,721,128us-gaap_PropertyPlantAndEquipmentNet | 
| Office Furniture and Equipment [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and Equipment, Subtotal | 
2,217,107us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = ntwk_OfficeFurnitureAndEquipmentMember  | 
        
2,628,814us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = ntwk_OfficeFurnitureAndEquipmentMember  | 
      
| Computers Equipment [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and Equipment, Subtotal | 
25,869,449us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = ntwk_ComputersEquipmentMember  | 
        
27,215,091us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = ntwk_ComputersEquipmentMember  | 
      
| Assets Under Capital Leases [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and Equipment, Subtotal | 
1,914,014us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_AssetsHeldUnderCapitalLeasesMember  | 
        
1,861,445us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_AssetsHeldUnderCapitalLeasesMember  | 
      
| Building [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and Equipment, Subtotal | 
5,999,422us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_BuildingMember  | 
        
6,259,290us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_BuildingMember  | 
      
| Land [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and Equipment, Subtotal | 
3,212,179us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_LandMember  | 
        
3,351,316us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_LandMember  | 
      
| Capital Work In Progress [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and Equipment, Subtotal | 
3,291,253us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = ntwk_CapitalWorkInProgressMember  | 
        
2,812,181us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = ntwk_CapitalWorkInProgressMember  | 
      
| Autos [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and Equipment, Subtotal | 
993,046us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_AutomobilesMember  | 
        
999,277us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_AutomobilesMember  | 
      
| Improvements [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and Equipment, Subtotal | 
$ 205,990us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_LeaseholdImprovementsMember  | 
        
$ 533,102us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_LeaseholdImprovementsMember  | 
      
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- Definition 
          Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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