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Operating Segments - Summary of Capital Expenditures (Details) (USD $) | 6 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013
Capital expenditures | $ 1,772,866us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | $ 6,059,596us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Corporate Headquaters [Member] |  |
Capital expenditures | 1,786us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementGeographicalAxis = ntwk_CorporateHeadquatersMember | 4,531us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementGeographicalAxis = ntwk_CorporateHeadquatersMember
North America [Member] |  |
Capital expenditures | 4,866us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember | 16,386us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember
Europe [Member] |  |
Capital expenditures | 155,895us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember | 90,423us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember
Asia Pacific [Member] |  |
Capital expenditures | $ 1,610,319us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementGeographicalAxis = us-gaap_AsiaPacificMember | $ 5,948,256us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementGeographicalAxis = us-gaap_AsiaPacificMember

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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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