Quarterly report pursuant to Section 13 or 15(d)

Note 1 - Nature of Operations and Summary of Significant Accounting Policies - Clinics in Operation Under Franchise Agreements or Company-owned or Managed (Details)

v3.5.0.2
Note 1 - Nature of Operations and Summary of Significant Accounting Policies - Clinics in Operation Under Franchise Agreements or Company-owned or Managed (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Franchised Units [Member]            
Clinics in operation at beginning of period 280 239 265 242    
Opened during the period 13 13 38 36    
Acquired during the period (2) (6) (23)    
Closed during the period (2) (4) (7)    
Clinics in operation at the end of the period 293 248 293 248    
Acquired during the period 2 6 23    
Number of Stores 280 239 265 242 293 248
Entity Operated Units [Member]            
Clinics in operation at beginning of period 61 23 47 4    
Opened during the period 4 8 4    
Acquired during the period (2) (6) (23)    
Closed during the period       (2)    
Clinics in operation at the end of the period 61 29 61 29    
Acquired during the period 2 6 23    
Number of Stores 61 23 47 4 61 29
Clinics in operation at the end of the period 354 277 354 277    
Number of Stores 354 277 354 277 354 277
Clinics licenses sold but not yet developed         134 180