Intangible Assets Including Goodwill - Carrying Value of Other Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2021
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 19,743		$ 19,837
Accumulated Amortization	(13,649)		(13,223)
Net Carrying Amount	6,094		6,614
Total intangible assets, net carrying amount	6,094		6,614
Amortization of Intangible Assets	500	$ 600
Intellectual Property [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	2,483		2,483
Accumulated Amortization	(2,074)		(2,031)
Net Carrying Amount	$ 409		452
Intellectual Property [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years	10 years
Intellectual Property [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years	15 years
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 17,260		17,354
Accumulated Amortization	(11,575)		(11,192)
Net Carrying Amount	$ 5,685		$ 6,162
Customer Relationships [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	6 years	6 years
Customer Relationships [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years	15 years