Revenue from Contracts with Customers - Disaggregation of revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Net sales	$ 61,514	$ 49,411
North America
Disaggregation of Revenue [Line Items]
Net sales	33,809	25,984
International
Disaggregation of Revenue [Line Items]
Net sales	27,705	23,427
United States | North America
Disaggregation of Revenue [Line Items]
Net sales	32,020	24,337
Canada & Mexico | North America
Disaggregation of Revenue [Line Items]
Net sales	1,789	1,647
Brazil | International
Disaggregation of Revenue [Line Items]
Net sales	19,203	14,908
United Kingdom | International
Disaggregation of Revenue [Line Items]
Net sales	4,968	4,995
China | International
Disaggregation of Revenue [Line Items]
Net sales	1,618	1,581
Australia & New Zealand | International
Disaggregation of Revenue [Line Items]
Net sales	$ 1,916	$ 1,943