Note 1 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Jun. 30, 2016

Notes Tables

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

(In thousands)	June 30,			June 30,
	2016			2015
Accounts receivable	$	47,201		$	43,978
Less: Allowance for doubtful accounts		(226	)		(317	)
Accounts receivable, net	$	46,975		$	43,661

Property, Plant and Equipment [Table Text Block]

Buildings (in years)	28	-	40
Machinery and equipment (in years)	3	-	10
Computer software (in years)	3	-	8

Schedule of Product Warranty Liability [Table Text Block]

(In thousands)	June 30, 2016			June 30, 2015
Balance at beginning of the period	$	3,408		$	2,662
Additions charged to expense		5,069			3,185
Deductions for repairs and replacements		(3,408	)		(2,439	)
Balance at end of the period	$	5,069		$	3,408