Note 2 - Acquisitions  | 
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| Business Combination Disclosure [Text Block] | 
 Franchises acquired during  2016 
During the year ended    December  31,  2016,  the Company continued to execute its growth strategy and entered into a series of unrelated transactions with existing franchisees to re-acquire an aggregate of six  developed franchises and one  undeveloped franchise throughout California and New Mexico for an aggregate purchase price of $1,025,000,  subject to certain adjustments, consisting of cash of $839,000  and notes payable of $186,000.  The Company is operating the six  developed franchises as company-owned or managed clinics and has terminated the undeveloped clinic license. At the time these transactions were consummated, the Company carried a deferred revenue balance of  
$29,000,  representing franchise fees collected upon the execution of the franchise agreements, and deferred franchise costs of $1,450,  related to an undeveloped franchise.  The Company accounted for the franchise rights associated with the undeveloped franchise as a cancellation, and the respective deferred revenue and deferred franchise costs were netted against the aggregate purchase price.  The remaining $997,450  was accounted for as consideration paid for the acquired franchises.The Company incurred approximately   $75,000  of transaction costs related to these acquisitions for the year ended  December  31,  2016,  which are included in general and administrative expenses in the accompanying consolidated statements of operations.Purchase Price Allocation The following summarizes the aggregate estimated fair values of the assets acquired and liabilities assumed during   2016  as of the acquisition date:
 Intangible assets in the table above consist of reacquired franchise rights of   $181,000  and customer relationships of $158,000,  and will be amortized over their estimated useful lives ranging from six  to eight  years and two  years, respectively.Goodwill recorded in connection with these acquisitions was attributable to the workforce of the clinics and synergies expected to arise from cost savings opportunities. All of the recorded goodwill is tax-deductible.   Franchises acquired during  2015 
During the year ended    December  31,  2015,  the Company entered into a series of unrelated transactions with existing franchisees to re-acquire an aggregate of 24  developed and 35  undeveloped franchises throughout Arizona, California and New York for an aggregate purchase price of $5,725,875,  subject to certain adjustments, consisting of cash of $4,925,525  and notes payable of $800,350.  Of the 24  developed franchises, the Company is operating 22  as company-owned or managed clinics and has closed the remaining two  clinics. The 35  undeveloped franchises have been terminated and the Company  may  relocate them. At the time these transactions were consummated, the Company carried a deferred revenue balance of  
$1,005,500,  representing franchise fees collected upon the execution of the franchise agreements, and deferred franchise costs of $493,500,  related to undeveloped franchises.  The Company accounted for the franchise rights associated with the undeveloped franchises as a cancellation, and the respective deferred revenue and deferred franchise costs were netted against the aggregate purchase price.  The remaining $5,213,875  was accounted for as consideration paid for the acquired franchises.Additionally, in    January  2015,  in connection with the default by a franchisee under its franchise agreement, the Company assumed substantially all of the assets of a clinic in Tempe, Arizona in exchange for $25,000.   The Company has accounted for this as a business combination.  The Company completed its valuation of the fair value of the assets acquired, including intangible assets, in  September  2015.  Because the net assets acquired exceeded the consideration paid, the Company recognized a bargain purchase gain of $233,804  during the year ended  December  31,  2015. 
The Company also recognized a bargain purchase gain of   $27,343  related to the acquisition of two  developed franchises and seven  undeveloped franchises in San Diego, California. Total bargain purchase gain for the year ended  December  31,  2015  was $261,147. 
The Company incurred   $393,069  of transaction costs related to these acquisitions for the year ended  December  31,  2015  which are included in general and administrative expenses in the accompanying consolidated statements of operations.Purchase Price Allocation The purchase price allocations for these acquisitions are complete. The following summarizes the aggregate fair values of the assets acquired and liabilities assumed during   2015  as of the acquisition date:
 Intangible assets in the table above consist of reacquired franchise rights of   $1,449,000  and customer relationships of $498,000,  and will be amortized over their estimated useful lives ranging from six  to eight  years and two  years, respectively.Goodwill recorded in connection with these acquisitions was attributable to the workforce of the clinics and synergies expected to arise from cost savings opportunities. All of the recorded goodwill is tax-deductible.   Pro Forma Results of Operations (Unaudited) The following table summarizes selected unaudited pro forma condensed consolidated statements of operations data for the year ended    December  31,  2016  and 2015  as if the acquisitions in 2016  had been completed on  January  1,  2015. 
 This selected unaudited pro forma consolidated financial data is included only for the purpose of illustration and does not necessarily indicate what the operating results would have been if the acquisitions had been completed on that date. Moreover, this information is not indicative of what the Company’s future operating results will be. The information for   2015  and 2016  prior to the acquisitions is included based on prior accounting records maintained by the acquired companies. In some cases, accounting policies differed materially from accounting policies adopted by the Company following the acquisitions. For 2016,  this information includes actual data recorded in the Company’s consolidated financial statements for the period subsequent to the date of the acquisitions. The Company’s consolidated statements of operations for the year ended  December  31,  2016  includes net revenue and net income of approximately $7.5  million and $0.7  million, respectively, attributable to the acquisitions.The pro forma amounts included in the table above reflect the application of accounting policies and adjustment of the results of the clinics to reflect the additional depreciation and amortization that would have been charged assuming the fair value adjustments to property and equipment and intangible assets had been applied from  
 January  1,  2015,  together with the consequential tax impacts. | 
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