The Joint Corp. Annual report pursuant to Section 13 and 15(d)

Nature of Operations and Summary of Significant Accounting Policies - Clinics in Operation Under Franchise Agreements or Company-Owned or Managed (Details) - clinic	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Product Information, Franchised Clinics, Company-Owned Or Managed Clinics, Activity [Roll Forward]
Clinics open at beginning of period	442
Clinics in operation at the end of the period	513	442
Clinic licenses sold but not yet developed	170	136
Executed letters of intent for future clinic licenses	34	19
Franchised Units
Product Information, Franchised Clinics, Company-Owned Or Managed Clinics, Activity [Roll Forward]
Clinics open at beginning of period	394	352
Opened or Purchased during the period	71	47
Acquired or sold during the period	(8)	(1)
Closed during the period	(4)	(4)
Clinics in operation at the end of the period	453	394
Opened during the period	71	47
Acquired during the period	8	1
Closed or Sold during the period	(4)	(4)
Entity Operated Units
Product Information, Franchised Clinics, Company-Owned Or Managed Clinics, Activity [Roll Forward]
Clinics open at beginning of period	48	47
Opened or Purchased during the period	5	0
Acquired or sold during the period	(8)	(1)
Closed during the period	(1)	0
Clinics in operation at the end of the period	60	48
Opened during the period	5	0
Acquired during the period	8	1
Closed or Sold during the period	(1)	0