Schedule II - Valuation and Qualifying Accounts - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
Balance, Beginning of Period		$ 506	$ 226	$ 317
Additions Charged to Costs and Expenses		214	339	55
Additions From Company Acquired			10
Deductions	[1]	(311)	(69)	(146)
Balance, End of Period		409	506	226
SEC Schedule, 12-09, Reserve, Inventory [Member]
Balance, Beginning of Period		2,815	2,394	2,197
Additions Charged to Costs and Expenses		2,605	1,495	1,726
Additions From Company Acquired			600
Deductions	[1]	(1,788)	(1,674)	(1,529)
Balance, End of Period		3,632	2,815	2,394
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]
Balance, Beginning of Period		5,556	6,150	6,161
Additions Charged to Costs and Expenses
Additions From Company Acquired		183	(569)
Deductions	[1]	(990)	(25)	(11)
Balance, End of Period		$ 4,749	$ 5,556	$ 6,150

[1] For Allowance for Doubtful Accounts, deductions are uncollectible accounts charged off, less recoveries.