| 
           Incentive and Non-Statutory Stock Option Plan (Details Narrative) (USD $) 
         | 
        3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
| 
           Dec. 31, 2014 
         | 
        
           Dec. 31, 2013 
         | 
        
           Dec. 31, 2014 
         | 
        
           Dec. 31, 2013 
         | 
      |
| Employee Stock Option [Member] | ||||
| Compensation expense | 
$ 155,623us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember  | 
        
$ 33,214us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember  | 
        
$ 311,245us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember  | 
        
$ 158,251us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember  | 
      
| Compensation expense related to unvested options yet to be recognized | 
311,244us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember  | 
        
311,244us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember  | 
        ||
| Stock Grants [Member] | ||||
| Compensation expense | 
316,370us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = ntwk_StockGrantsMember  | 
        
232,012us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = ntwk_StockGrantsMember  | 
        
614,293us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = ntwk_StockGrantsMember  | 
        
464,025us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = ntwk_StockGrantsMember  | 
      
| Compensation expense related to unvested options yet to be recognized | 
$ 606,675us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions / us-gaap_AwardTypeAxis = ntwk_StockGrantsMember  | 
        
$ 606,675us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions / us-gaap_AwardTypeAxis = ntwk_StockGrantsMember  | 
        ||
| X | ||||||||||
| 
             
- Definition 
          Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Unrecognized cost of unvested options awarded to employees as compensation. No definition available. 
  | 
        
| X | ||||||||||
| 
             
- Details 
          
  | 
        
| X | ||||||||||
| 
             
- Details 
          
  |