XML 52 R40.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Note H - Segment Information - Assets by Business Segment (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Jun. 30, 2015
--- | --- | ---
Private Label Contract Manufacturing [Member] |  |
Total Assets |  |
Assets | $ 56,236 | $ 50,313
Patent and Trademark Licensing [Member] |  |
Total Assets |  |
Assets | $ 4,610 | $ 3,503
Branded Products [Member] |  |
Total Assets |  |
Assets |  |
Assets | $ 60,846 | $ 53,816

X
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.18) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 + Details
Name: | us-gaap_Assets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=naii_PrivateLabelContractManufacturingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=naii_PatentAndTrademarkLicensingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=naii_BrandedProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |