Schedule of Revenue and Accounts Receivable Concentrations (Details)	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Revenue Benchmark [Member] | Patient Payment [Member] | Product Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration of credit risk, percentage	41.00%	35.00%
Revenue Benchmark [Member] | Medicare Payment [Member] | Product Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration of credit risk, percentage	37.00%	40.00%
Revenue Benchmark [Member] | Insurance Payment [Member] | Product Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration of credit risk, percentage	18.00%	22.00%
Revenue Benchmark [Member] | Injury Payment [Member] | Product Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration of credit risk, percentage	4.00%	3.00%
Accounts Receivable [Member] | Patient Payment [Member] | Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration of credit risk, percentage	34.00%	38.00%
Accounts Receivable [Member] | Medicare Payment [Member] | Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration of credit risk, percentage	20.00%	16.00%
Accounts Receivable [Member] | Insurance Payment [Member] | Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration of credit risk, percentage	29.00%	37.00%
Accounts Receivable [Member] | Injury Payment [Member] | Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration of credit risk, percentage	17.00%	9.00%