Number shares of common Equivalent Shares outstanding.

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The percent of franchise advertising fee.

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No definition available.

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Represents the license fees, percentage of gross margin.

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No definition available.

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Number of persons employed by the Entity.

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No definition available.

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Represents the amount of franchisee-owned offices.

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No definition available.

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- Definition

Represents the maximum percentage of sales for services.

+ References

No definition available.

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- Definition

Represents the percentage of gross margin.

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No definition available.

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- Definition

Amount of royalty fees as percentage of contractor payments.

+ References

No definition available.

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- Definition

Represents the royalty fees, percentage of payroll.

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No definition available.

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- Definition

Amount of allowance for credit loss on accounts receivable.

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

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- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount, after tax, of realized and unrealized gain (loss) from foreign currency transaction.

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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

The number of states the entity operates in as of the balance sheet date.

+ References

No definition available.

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- Definition

The number of franchises purchased during the period when there are significant changes in franchisor-owned outlets or franchised outlets during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Note 1 - Overview and Summary of Significant Accounting Policies (Details Textual) shares in Thousands, $ in Thousands						3 Months Ended	6 Months Ended	9 Months Ended
	Dec. 12, 2022 USD ($)	Feb. 28, 2022 USD ($)	Feb. 21, 2022 USD ($)	Jan. 24, 2022 USD ($)	Jan. 19, 2022 USD ($)	Sep. 30, 2022 USD ($) shares	Sep. 30, 2023 USD ($) shares	Sep. 30, 2023 USD ($) shares	Sep. 30, 2022 USD ($) shares	Dec. 31, 2022 USD ($)
Number of Franchisee Owned Offices							425	425
Number of States in which Entity Operates							42	42
Number of Employees							85,000	85,000
Gain (Loss), Foreign Currency Transaction, after Tax						$ 0	$ 0	$ 0	$ 0
Accounts Receivable, Allowance for Credit Loss							$ 186	$ 186		$ 70
Royalty Fees, Percentage of Payroll							4.50%	4.50%
Revenue, Percentage of Gross Margin							18.00%	18.00%
License Fee, Percentage of Gross Margin							9.00%	9.00%
Financing Receivable, Allowance for Credit Loss							$ 560	$ 560		$ 405
Impairment of Intangible Assets (Excluding Goodwill)								$ 0
Common, Equivalent Shares, Outstanding (in shares) \| shares						240	173	173	240
Minimum [Member]
Percentage of Sales for Services							6.00%	6.00%
Royalty Fees, Percentage of Contractor Payments							4.00%	4.00%
Finite-Lived Intangible Asset, Useful Life (Year)							5 years	5 years
Franchise Advertising Fee, Percent								0.50%
Minimum [Member] \| MRI Franchise [Member]
Royalty Fees, Percentage of Payroll							20.00%	20.00%
Minimum [Member] \| Franchise [Member]
Percentage of Sales for Services							5.00%	5.00%
Maximum [Member]
Percentage of Sales for Services							8.00%	8.00%
Royalty Fees, Percentage of Contractor Payments							10.00%	10.00%
Finite-Lived Intangible Asset, Useful Life (Year)							15 years	15 years
Franchise Advertising Fee, Percent								1.00%
Maximum [Member] \| MRI Franchise [Member]
Royalty Fees, Percentage of Payroll							25.00%	25.00%
Maximum [Member] \| Franchise [Member]
Percentage of Sales for Services							8.00%	8.00%
Temporary Alternatives [Member]
Significant Changes, Franchises Purchased During Period				3
Business Combination, Consideration Transferred, Total				$ 7,043
Business Combination, Consideration Transferred, Liabilities Incurred				$ 336
Dubin [Member]
Business Combination, Consideration Transferred, Total			$ 2,462		$ 2,500
Business Combination, Consideration Transferred, Liabilities Incurred			362
Dubin [Member] \| Adjusted Net Working Capital Payable [Member]
Business Combination, Consideration Transferred, Liabilities Incurred			62
Dubin [Member] \| Notes Payable, Other Payables [Member]
Business Combination, Consideration Transferred, Liabilities Incurred			$ 300
Northbound [Member]
Business Combination, Consideration Transferred, Total		$ 11,428
Northbound [Member] \| Adjusted Net Working Capital Payable [Member]
Business Combination, Consideration Transferred, Liabilities Incurred		328
Northbound [Member] \| Notes Payable, Other Payables [Member]
Business Combination, Consideration Transferred, Liabilities Incurred		$ 1,500
MRINetwork [Member]
Business Combination, Consideration Transferred, Total	$ 13,283
MRINetwork [Member] \| Adjusted Net Working Capital Payable [Member]
Business Combination, Consideration Transferred, Liabilities Incurred	$ 223