Note 1 - Summary of Accounting Policies (Details) - Useful lives of intangible assets	12 Months Ended
	Jun. 30, 2013
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Useful lives for identifiable intangible assets	12 years
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Useful lives for identifiable intangible assets	10 years
Minimum [Member] | Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Useful lives for identifiable intangible assets	5 years
Minimum [Member] | Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Useful lives for identifiable intangible assets	5 years
Maximum [Member] | Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Useful lives for identifiable intangible assets	16 years
Maximum [Member] | Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Useful lives for identifiable intangible assets	10 years