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Total Unrecognized Compensation Costs Related to Non-Vested Stock-Based Compensation Arrangements (Detail) (USD $)
Sep. 30, 2014
Common stock options
 
Employee Service Share -Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized [Line Items]  
Unrecognized compensation cost $ 198,195
Restricted stock
 
Employee Service Share -Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized [Line Items]  
Unrecognized compensation cost 139,400
ACO Plan restricted stock
 
Employee Service Share -Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized [Line Items]  
Unrecognized compensation cost $ 57,179