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Note 9 - Summary of Net Equipment by Geographic Area (Details) - USD ($)
$ in Thousands
Jun. 30, 2016
Jun. 30, 2015
Geographic Concentration Risk [Member] | UNITED STATES    
Property, Plant, and Equipment, Net $ 2,030 $ 1,409
Geographic Concentration Risk [Member] | COSTA RICA    
Property, Plant, and Equipment, Net 367 594
Geographic Concentration Risk [Member] | INDIA    
Property, Plant, and Equipment, Net 279 296
Geographic Concentration Risk [Member] | CHINA    
Property, Plant, and Equipment, Net 225 524
Geographic Concentration Risk [Member] | All Other Countries [Member]    
Property, Plant, and Equipment, Net 61 114
Property, Plant, and Equipment, Net $ 2,962 $ 2,937