Segment Information - Schedule of Results of Operations by Segment (Details) - USD ($) $ in Thousands		3 Months Ended				9 Months Ended
		Mar. 31, 2022		Mar. 31, 2021		Mar. 31, 2022		Mar. 31, 2021
Revenue:
Total revenue		$ 16,622		$ 13,845		$ 49,909		$ 44,531
Operating costs and expenses:
Depreciation and amortization		(517)		(618)		(1,631)		(1,799)
Non-cash compensation	[1]	(578)		(616)		(2,572)		(1,330)
Transaction costs	[2]	(92)		(262)		(535)		(610)
Other selling, general and administrative		(11,304)		(7,983)		(29,951)		(27,049)
Total operating expenses		(18,561)		(14,942)		(52,712)		(48,697)
Other income (expense):
Interest expense		(1,354)		(1,361)		(4,078)		(3,607)
Other income (expense)		(2,862)		(403)		(3,393)		339
Total other income (expense), net		(4,216)		(1,764)		(7,471)		(3,268)
Loss from continuing operations, before income taxes		(6,155)		(2,861)		(10,274)		(7,434)
Intercompany Eliminations
Revenue:
Total revenue		(230)	[3]	(162)	[3]	(645)	[4]	(298)	[4]
Operating costs and expenses:
Other selling, general and administrative		230	[3]	162	[3]	645	[4]	298	[4]
Total operating expenses		230	[3]	162	[3]	645	[4]	298	[4]
Other income (expense):
Interest expense		1,202	[3]	1,231	[3]	3,640	[4]	1,231	[4]
Other income (expense)		(1,202)	[3]	(1,231)	[3]	(3,640)	[4]	(1,231)	[4]
Durable Medical Equipment | Operating Segments
Revenue:
Total revenue		15,634		13,117		46,917		42,270
Operating costs and expenses:
Depreciation and amortization		(428)		(508)		(1,324)		(1,433)
Transaction costs	[2]			(107)		(224)		(194)
Other selling, general and administrative		(8,875)		(6,023)		(23,634)		(21,822)
Total operating expenses		(15,373)		(12,101)		(43,205)		(41,358)
Other income (expense):
Interest expense		(1,269)		(1,280)		(3,845)		(2,676)
Other income (expense)		(5,612)		(4,795)		(3,468)		(6,631)
Total other income (expense), net		(6,881)		(6,075)		(7,313)		(9,307)
Loss from continuing operations, before income taxes		(6,620)		(5,059)		(3,601)		(8,395)
Investment Management | Operating Segments
Revenue:
Total revenue		988		728		2,992	[3]	2,261	[3]
Operating costs and expenses:
Depreciation and amortization		(89)		(109)		(306)	[3]	(364)	[3]
Non-cash compensation	[1]	(262)		(181)		(1,604)	[3]	(572)	[3]
Other selling, general and administrative		(1,372)		(742)		(3,283)	[3]	(2,001)	[3]
Total operating expenses		(1,723)		(1,032)		(5,193)	[3]	(2,937)	[3]
Other income (expense):
Interest expense		(24)		(25)		(72)	[3]	(76)	[3]
Other income (expense)		(3,222)		(403)		(4,479)	[3]	2,166	[3]
Total other income (expense), net		(3,246)		(428)		(4,551)	[3]	2,090	[3]
Loss from continuing operations, before income taxes		(3,981)		(732)		(6,752)	[3]	1,414	[3]
General Corporate | Operating Segments
Revenue:
Total revenue		230		162		645	[3]	298	[3]
Operating costs and expenses:
Depreciation and amortization				(1)		(1)	[3]	(2)	[3]
Non-cash compensation	[1]	(316)		(435)		(968)	[3]	(758)	[3]
Transaction costs	[2]	(92)		(155)		(311)	[3]	(416)	[3]
Other selling, general and administrative		(1,287)		(1,380)		(3,679)	[3]	(3,524)	[3]
Total operating expenses		(1,695)		(1,971)		(4,959)	[3]	(4,700)	[3]
Other income (expense):
Interest expense		(1,263)		(1,287)		(3,801)	[3]	(2,086)	[3]
Other income (expense)		7,174		6,026		8,194	[3]	6,035	[3]
Total other income (expense), net		5,911		4,739		4,393	[3]	3,949	[3]
Loss from continuing operations, before income taxes		4,446		2,930		79	[3]	(453)	[3]
Sales and Services
Operating costs and expenses:
Total operating costs and expenses		(4,362)		(3,806)		(12,731)		(12,716)
Sales and Services | Durable Medical Equipment | Operating Segments
Operating costs and expenses:
Total operating costs and expenses		(4,362)		(3,806)		(12,731)		(12,716)
Rental
Operating costs and expenses:
Total operating costs and expenses		(1,708)		(1,657)		(5,292)		(5,193)
Rental | Durable Medical Equipment | Operating Segments
Operating costs and expenses:
Total operating costs and expenses		$ (1,708)		$ (1,657)		$ (5,292)		$ (5,193)

[1] Non-cash compensation includes stock-based compensation and compensation in the form of stock in portfolio companies held by the Company. Non-cash compensation attributable to the investment management segment is included in investment management expenses in the condensed consolidated statements of operations. Non-cash compensation attributable to the general corporate segment is included in selling, general and administrative expense in the condensed consolidated statements of operations.

[2] Transaction costs, which consist of legal and other professional services incurred in connection with consummated and unconsummated transactions, are included in selling, general and administrative expense in the condensed consolidated statements of operations.

[3] Previously reported non-operating activity including dividend income and unrealized gains/losses related to managed investments has been reclassified from General Corporate to Investment Management to conform with current segment organization.

[4] The Company’s wholly-owned subsidiary, DME Manager, provides advisory services to HC LLC (formerly to DME, Inc.) and receives consulting fees from for those services. DME Manager is part of general corporate operations while HC LLC is part of the durable medical equipment segment. The corresponding expense to HC LLC and revenue to DME Manager are eliminated in consolidation. Beginning December 29, 2020, DME Manager also provides advisory services to Forest and receives a consulting fee from Forest for those services. Both DME Manager and Forest are part of general corporate operations, and the corresponding revenue and expense are eliminated in consolidation. Additionally, Forest owns Series A-1 Preferred Stock and Series A-2 Preferred Stock of HC LLC. Forest is part of general corporate operations while HC LLC is part of the durable medical equipment segment. The corresponding interest expense to HC LLC and interest income to Forest are eliminated in consolidation.