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Summary of Significant Accounting Policies - Changes in Allowance for Doubtful Accounts (Detail) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Regulatory Assets [Abstract]    
Beginning balance $ 7,398  
Allowance from Quest acquisition 263,887  
Bad debt expense (recoveries) 62,017 7,398
Uncollectible accounts written off (13,567)  
Ending balance $ 319,735 $ 7,398