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Other Intangibles - Additional Information (Detail) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 01, 2014
Finite-Lived Intangible Assets [Line Items]    
Amortization expense 100,000us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization $ 149,486us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Acquired Advertising Contracts [Member]    
Finite-Lived Intangible Assets [Line Items]    
Estimated useful lives 2 months  
Advertiser Relationships [Member]    
Finite-Lived Intangible Assets [Line Items]    
Estimated useful lives 6 years