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FOREIGN SALES AND SIGNIFICANT CUSTOMERS, SALES BY COUNTRY (Details) - USD ($) | 12 Months Ended
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Jun. 30, 2016 | Jun. 30, 2015
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Net sales | $ 26,001,346 | $ 24,230,056
United States |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Net sales | 15,496,763 | 16,779,312
Non-U.S. Countries [Member] |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Net sales | 10,504,583 | 7,450,744
Sweden |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Net sales | 4,322,582 | 3,677,225
Czech Republic |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Net sales | 1,231,731 | 441,754
Hong Kong |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Net sales | 1,121,609 | 0
People's Republic of China |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Net sales | 969,848 | 193,374
Malaysia |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Net sales | 669,782 | 262,600
Canada |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Net sales | 400,672 | 498,026
All other countries |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Net sales | $ 1,788,359 | $ 2,377,765

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