Revenue Recognition (Tables)

6 Months Ended

Jan. 31, 2021

Revenue from Contract with Customer [Abstract]

Schedule of segment revenue and revenue percentage

	Three months ended January 31, 2021				Three months ended January 31, 2020
Revenue category
Third-party payer	$	15,023	63	%	$	6,404	51	%
Medicare		3,910	16			3,025	24
Patient self-pay		1,997	8			1,447	12
HMO’s		3,058	13			1,637	13
Total	$	23,988	100	%	$	12,513	100	%

	Six months ended January 31, 2021				Six months ended January 31, 2020
Revenue category
Third-party payer	$	27,503	61	%	$	12,796	51	%
Medicare		7,313	16			6,178	24
Patient self-pay		4,556	10			2,966	12
HMO’s		5,839	13			3,353	13
Total	$	45,211	100	%	$	25,293	100	%

Schedule of product revenue by geographical

Products revenue by geography is as follows:	Three Months Ended January 31				Six Months Ended January 31
	2021		2020		2021		2020
United States	$	3,524	$	3,807	$	7,469	$	8,331
Europe		2,635		2,066		5,066		3,975
Asia Pacific		1,319		998		2,375		1,992
Products revenue	$	7,478	$	6,871	$	14,910	$	14,298