Summary of significant accounting policies (Tables)

3 Months Ended

Jun. 30, 2020

Accounting Policies [Abstract]

Disaggregation of Revenue

The following table provides disaggregated revenue from contracts with customers by geographical market, as the nature, amount, timing and uncertainty of revenue and cash flows can differ between domestic and international customers (in thousands).

	Three months ended June 30,
Net sales by geographic region:	2020		2019
United States	$	57,897	$	53,780
International	6,630		5,984
Total net sales	$	64,527	$	59,764