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Note 1 - Nature of Operations and Summary of Significant Accounting Policies - Clinics in Operation Under Franchise Agreements or Company-owned or Managed (Details) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015
Clinics in operation at beginning of period | 312 |  |  |
Clinics in operation at the end of the period | 370 | 312 |  |
Number of Stores | 370 | 312 | 370 | 312
Clinic licenses sold but not yet developed |  |  | 115 | 168
Franchised Units [Member] |  |  |  |
Clinics in operation at beginning of period | 265 | 242 |  |
Opened during the period | 56 | 54 |  |
Acquired during the period | (6) | (24) |  |
Closed during the period | (6) | (7) |  |
Clinics in operation at the end of the period | 309 | 265 |  |
Acquired during the period | 6 | 24 |  |
Number of Stores | 265 | 265 | 309 | 265
Entity Operated Units [Member] |  |  |  |
Clinics in operation at beginning of period | 47 | 4 |  |
Opened during the period | 8 | 21 |  |
Acquired during the period | (6) | (24) |  |
Closed during the period |  | (2) |  |
Clinics in operation at the end of the period | 61 | 47 |  |
Acquired during the period | 6 | 24 |  |
Number of Stores | 47 | 47 | 61 | 47

X
- Definition Represents the number of clinics acquired during the period. + References No definition available. + Details
Name: | jynt_ClinicsAcquiredDuringThePeriod
Namespace Prefix: | jynt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of clinics closed during the period. + References No definition available. + Details
Name: | jynt_ClinicsClosedDuringThePeriod
Namespace Prefix: | jynt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of number of clinics opened during the period. + References No definition available. + Details
Name: | jynt_ClinicsOpenedDuringThePeriod
Namespace Prefix: | jynt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of clinics that have been sold as franchises, but are not yet operational. + References No definition available. + Details
Name: | jynt_ClinicsSoldButNotYetOperational
Namespace Prefix: | jynt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the number of stores. + References No definition available. + Details
Name: | us-gaap_NumberOfStores
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_FranchisorDisclosureAxis=us-gaap_FranchisedUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FranchisorDisclosureAxis=us-gaap_EntityOperatedUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |