Note G - Economic Dependency - Substantial Net Sales to Certain Customers (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|
Mar. 31, 2016 |
Mar. 31, 2015 |
Mar. 31, 2016 |
Mar. 31, 2015 |
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| Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member] | Customer 1 [Member] | |||||||||
| Revenue, Net | $ 13,023 | $ 7,051 | $ 31,714 | $ 22,999 | |||||
| Concentration Risk, Percentage | 53.00% | 41.00% | 51.00% | 45.00% | |||||
| Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member] | Customer 2 [Member] | |||||||||
| Revenue, Net | $ 3,367 | $ 1,864 | $ 9,705 | [1] | |||||
| Concentration Risk, Percentage | 14.00% | 11.00% | 16.00% | [1] | |||||
| Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member] | Customer 3 [Member] | |||||||||
| Revenue, Net | $ 3,196 | [1] | $ 3,763 | $ 6,805 | [1] | $ 8,355 | |||
| Concentration Risk, Percentage | 13.00% | [1] | 22.00% | 11.00% | [1] | 16.00% | |||
| Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member] | |||||||||
| Revenue, Net | $ 19,586 | $ 12,678 | $ 48,224 | $ 31,354 | |||||
| Concentration Risk, Percentage | 80.00% | 74.00% | 78.00% | 61.00% | |||||
| Revenue, Net | $ 30,006 | $ 19,613 | $ 78,502 | $ 56,926 | |||||
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