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Acquisitions of Businesses, 2020 Acquisition (Details)							12 Months Ended
	Dec. 31, 2021 USD ($) Clinic	Jun. 30, 2021 USD ($) Clinic	Mar. 31, 2021 USD ($) Clinic	Nov. 30, 2020 USD ($) Clinic Installment	Sep. 30, 2020 USD ($) Contract	Feb. 27, 2020 USD ($) Partnership Clinic	Dec. 31, 2021 USD ($) Clinic Partnership	Dec. 31, 2020 Clinic Partnership	Dec. 31, 2019 Partnership	Sep. 30, 2021 USD ($)
Business Combination, Description [Abstract]
Number of clinics | Clinic							5	3
Number of partnerships in which interest acquired | Partnership							5	5	4
Previous Owners [Member]
Business Combination, Description [Abstract]
Percentage of retained interest by previous owners		35.00%	30.00%	25.00%
Management Contracts [Member]
Business Combination, Description [Abstract]
Percentage of interest acquired					70.00%
Number of management contracts | Contract					6
Aggregate purchase price for the acquisition					$ 4,200,000
Cash paid for acquisition					3,700,000
Notes payable					$ 500,000
Management Contracts [Member] | Notes Payable One [Member]
Business Combination, Description [Abstract]
Notes payable				$ 300,000
Management Contracts [Member] | Notes Payable Two [Member]
Business Combination, Description [Abstract]
Notes payable										$ 200,000
Clinic Practice [Member]
Business Combination, Description [Abstract]
Percentage of interest acquired	75.00%	65.00%	70.00%	75.00%		65.00%	75.00%
Number of clinics | Clinic	3	8	5	3		4
Number of partnerships in which interest acquired | Partnership						4
Aggregate purchase price for the acquisition	$ 3,700,000	$ 10,300,000	$ 12,000,000.0	$ 8,900,000		$ 11,900,000
Cash paid for acquisition	3,500,000	9,000,000.0	11,700,000	$ 8,600,000		11,600,000
Number of installments | Installment				2
Principal installments				$ 162,500
Notes payable	$ 200,000	$ 300,000	$ 300,000	$ 300,000		$ 300,000	$ 200,000
Percentage of interest accrued	3.25%	3.25%	3.25%	3.25%		4.75%	3.25%
Clinic Practice [Member] | Minimum [Member]
Business Combination, Description [Abstract]
Percentage of interest acquired	5.00%					10.00%	5.00%	20.00%	1.00%
Clinic Practice [Member] | Maximum [Member]
Business Combination, Description [Abstract]
Percentage of interest acquired	35.00%					83.80%	35.00%	35.00%	20.00%

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

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The number of businesses acquired by the entity during the period.

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