Geographical Data (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Jun. 30, 2020
Domestic and Foreign Operations
Net Sales	$ 28,228	$ 26,239	$ 78,606	$ 78,353
Identifiable assets	114,453		114,453		$ 105,838
Domestic
Domestic and Foreign Operations
Net Sales	27,877	25,662	77,559	76,717
Identifiable assets	80,557		80,557		69,436
Foreign
Domestic and Foreign Operations
Net Sales	351	$ 577	1,047	$ 1,636
Dominican Republic
Domestic and Foreign Operations
Identifiable assets	$ 33,896		$ 33,896		$ 36,402