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Note J - Economic Dependency - Substantial Net Sales to Certain Customers (Details) - Customer Concentration Risk [Member] - Sales Revenue, Goods, Net [Member] - USD ($) | 12 Months Ended
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Jun. 30, 2015 | Jun. 30, 2014
Customer 1 [Member] |  |  |  |
Net sales by customer | $ 29,724,000 |  | $ 25,252,000 |
% of total net sales | 43.00% |  | 38.00% |
Customer 2 [Member] |  |  |  |
Net sales by customer | $ 11,018,000 |  | $ 11,256,000 |
% of total net sales | 16.00% |  | 17.00% |
Customer 3 [Member] |  |  |  |
Net sales by customer | $ 8,090,000 |  | $ 0 | [1]
% of total net sales | 12.00% |  | 0.00% | [1]
Customer 4 [Member] |  |  |  |
Net sales by customer | $ 0 | [1] | $ 10,960,000 |
% of total net sales | 0.00% | [1] | 16.00% |
Net sales by customer | $ 48,832,000 |  | $ 47,468,000 |
% of total net sales | 71.00% |  | 71.00% |
[1] | Sales were less than 10% of the respective period's total private label contract manufacturing net sales.

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- 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 Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + 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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