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Income Taxes - Additional Information (Detail) - USD ($)
6 Months Ended
Jun. 30, 2017
Dec. 31, 2016
Income Taxes [Line Items]    
Deferred tax asset $ 6,691,344 $ 6,949,340
Accumulated net operating losses 5,800,000 6,000,000
Start-up expense related to company $ 200,000 200,000
Amortized period 15 years  
Loss carryforwards, expired 2028  
TRS Lessee [Member]    
Income Taxes [Line Items]    
Accumulated net operating losses $ 5,800,000 $ 6,000,000