Note 2 - Acquisitions - Pro Forma Financial Information (Details) - USD ($)	3 Months Ended
Sep. 30, 2016	Sep. 30, 2015
Net sales	$ 131,798	$ 117,690
Net income	$ 23,103	$ 21,840

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration