Note 2 - Summary of Significant Accounting Policies (Tables)

6 Months Ended

Dec. 31, 2017

Notes Tables

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

(In thousands)	December 31,			June 30,
	2017			2017
Accounts receivable	$	60,215		$	49,386
Less: Allowance for doubtful accounts		(475	)		(506	)
Accounts receivable, net	$	59,740		$	48,880

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]

	Six			Six			Fiscal
	Months Ended			Months Ended			Year Ended
(In thousands)	December 31,			December 31,			June 30,
	2017			2016			2017
Balance at beginning of the period	$	7,560		$	5,069		$	5,069
Additions charged to expense		2,394			2,243			4,956
Addition from acquired company		--			--			907
Deductions for repairs and replacements		(3,266	)		(1,351	)		(3,372	)
Balance at end of the period	$	6,688		$	5,961		$	7,560