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Revenue Recognition - Schedule of Revenues in Excess of Billings and Deferred Revenue (Details) - USD ($) | Sep. 30, 2018 | Jul. 02, 2018
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Revenue Recognition and Deferred Revenue [Abstract] |  |
Revenues in excess of billings | $ 13,335,529 | $ 6,956,966
Deferred Revenue | $ 4,913,731 | $ 6,167,755

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- Definition Revenues in excess of billings. + References No definition available. + Details
Name: | NTWK_RevenuesInExcessOfBillings
Namespace Prefix: | NTWK_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. + References No definition available. + Details
Name: | us-gaap_DeferredRevenue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_RevenueRecognitionAndDeferredRevenueAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration