Note H - Segment Information (Details) (USD $)	3 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Jun. 30, 2014
Note H - Segment Information (Details) [Line Items]
Number of Reportable Segments			3
Revenue, Net (in Dollars)	$ 18,695,000	$ 17,155,000
Sales Revenue, Net [Member] | Geographic Concentration Risk [Member] | Natural Alternatives International Europe Sa [Member] | Markets Outside the United States [Member]
Note H - Segment Information (Details) [Line Items]
Concentration Risk, Percentage	67.00%	55.00%
Natural Alternatives International Europe Sa [Member] | UNITED STATES
Note H - Segment Information (Details) [Line Items]
Revenue, Net (in Dollars)	0	0
Markets Outside the United States [Member]
Note H - Segment Information (Details) [Line Items]
Revenue, Net (in Dollars)	8,985,000	7,667,000
UNITED STATES
Note H - Segment Information (Details) [Line Items]
Revenue, Net (in Dollars)	$ 9,710,000	$ 9,488,000