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Note 2. Summary of Significant Accounting Policies (Detail) (USD $)
1 Months Ended 12 Months Ended
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2009
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2010
Standard Product Warranty Description   30            
Capitalized Computer Software, Gross (in Dollars) $ 59,000 $ 557,000 $ 59,000          
Business Acquisition Fair Value Adjustments Refinement Period   1 year            
Number of Franchisor Locations   4,000            
Share Price (in Dollars per share)   $ 0.53   $ 1.22   $ 0.95 $ 1.10 $ 1.44
Goodwill, Impairment Loss (in Dollars) 4,300,000     2,500,000        
Weighting Used in Market Approach Direct Market Capitalization Method     25.00% 75.00% 90.00%      
Control Premium     150.00%          
Impairment of Intangible Assets (Excluding Goodwill) (in Dollars)   281,000            
Number of Reportable Segments   1            
Advertising Expense (in Dollars)   836,000 563,000          
Equipment [Member] | Minimum [Member]
               
Property, Plant and Equipment, Useful Life   3 years            
Equipment [Member] | Maximum [Member]
               
Property, Plant and Equipment, Useful Life   5 years            
Internal Use Software [Member]
               
Finite-Lived Intangible Asset, Useful Life   3 years            
Software Development [Member]
               
Finite-Lived Intangible Asset, Useful Life   3 years            
Minimum [Member] | Customer Relationships [Member]
               
Finite Lived Intangible Useful Life Asset   2 years            
Finite-Lived Intangible Asset, Useful Life   5 years            
Minimum [Member]
               
Payment Terms   30 days            
Goodwill, Fair Value Disclosure (in Dollars) 24,600,000   24,600,000          
Maximum [Member] | Customer Relationships [Member]
               
Finite Lived Intangible Useful Life Asset   3 years            
Finite-Lived Intangible Asset, Useful Life   6 years            
Maximum [Member]
               
Payment Terms   45 days            
Goodwill, Fair Value Disclosure (in Dollars) $ 27,200,000   $ 27,200,000