Goodwill & Intangible Assets - Goodwill (Details)	3 Months Ended
	Mar. 31, 2022 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 3,710,000
Goodwill, ending balance	3,710,000
DME Services
Goodwill [Roll Forward]
Goodwill, beginning balance	3,710,000
Goodwill acquired	0
Goodwill, ending balance	3,710,000
ITS
Goodwill [Roll Forward]
Goodwill, ending balance	$ 0