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Note 2 - Summary of Significant Accounting Policies - Estimated Useful Lives of Long-lived Assets (Details)	9 Months Ended
	Mar. 31, 2017
Building [Member] \| Minimum [Member]
Property, plant, and equipment (Year)	28 years
Building [Member] \| Maximum [Member]
Property, plant, and equipment (Year)	40 years
Machinery and Equipment [Member] \| Minimum [Member]
Property, plant, and equipment (Year)	3 years
Machinery and Equipment [Member] \| Maximum [Member]
Property, plant, and equipment (Year)	10 years
Software and Software Development Costs [Member] \| Minimum [Member]
Property, plant, and equipment (Year)	3 years
Software and Software Development Costs [Member] \| Maximum [Member]
Property, plant, and equipment (Year)	8 years