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FOREIGN SALES AND SIGNIFICANT CUSTOMERS, SALES BY COUNTRY (Details) - USD ($)
 12 Months Ended
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