Revenue - Summary of Major Source of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Disaggregation Of Revenue [Line Items]
Total rental revenue	$ 5,479	$ 5,397
Revenue	16,538	15,383
Investment Management
Disaggregation Of Revenue [Line Items]
Total product and services revenue	983	773
Investment Management | Management Fees
Disaggregation Of Revenue [Line Items]
Total product and services revenue	876	601
Investment Management | Administration Fees
Disaggregation Of Revenue [Line Items]
Total product and services revenue	107	172
Durable Medical Equipment | Equipment Sales
Disaggregation Of Revenue [Line Items]
Total product and services revenue	8,730	8,008
Durable Medical Equipment | Service Revenues
Disaggregation Of Revenue [Line Items]
Total product and services revenue	1,346	1,205
Durable Medical Equipment | Sales and Services
Disaggregation Of Revenue [Line Items]
Total product and services revenue	10,076	9,213
Durable Medical Equipment | Medical Equipment
Disaggregation Of Revenue [Line Items]
Total rental revenue	5,479	5,397
Investment Management and Durable Medical Equipment
Disaggregation Of Revenue [Line Items]
Total product and services revenue	$ 11,059	$ 9,986