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Note I - Commitments (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended | 0 Months Ended |  | 0 Months Ended |
--- | --- | --- | --- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jul. 01, 2014 Subsequent Event [Member] Natural Alternatives International Europe Sa [Member] SWITZERLAND | Jun. 30, 2014 Natural Alternatives International Europe Sa [Member] SWITZERLAND sqft | Jul. 31, 2013 CALIFORNIA | Jun. 30, 2014 CALIFORNIA sqft
Note I - Commitments (Details) [Line Items] |  |  |  |  |  |
Operating Lease Facility Area (in Square Feet) |  |  |  | 87,763 |  | 162,000
Lessee Leasing Arrangements, Operating Leases, Renewal Term |  |  | 5 years |  | 10 years |
Lessee Leasing Arrangements, Operating Leases, Term of Contract |  |  | 5 years |  |  |
Operating Leases, Rent Expense, Net (in Dollars) | $ 2.3 | $ 2.2 |  |  |  |

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- Definition Area of leased facility in square feet. + References No definition available. + Details
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- Definition Term of the lessee's leasing arrangement renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Term of the lessee's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 + Details
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