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Note H - Segment Information (Details Textual) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014
Products Manufactured by NAIE [Member] | UNITED STATES |  |  |  |
Revenue, Net |  |  | $ 0 | $ 0
Products Manufactured by NAIE [Member] | Non-US [Member] | Sales Revenue, Net [Member] | Product Concentration Risk [Member] |  |  |  |
Concentration Risk, Percentage | 71.00% | 75.00% | 74.00% | 71.00%
UNITED STATES |  |  |  |
Revenue, Net | $ 12,498,000 | $ 9,373,000 | $ 25,291,000 | $ 19,084,000
Non-US [Member] |  |  |  |
Revenue, Net | 14,413,000 | 9,245,000 | 23,205,000 | 18,229,000
Revenue, Net | $ 26,911,000 | $ 18,618,000 | $ 48,496,000 | $ 37,313,000
Number of Reportable Segments |  |  | 3 |

X
- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6351-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13531-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6404-108592 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13537-108611 + Details
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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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