Quarterly report pursuant to Section 13 or 15(d)

Capital Stock (Additional Information) (Detail)

v3.8.0.1
Capital Stock (Additional Information) (Detail) - USD ($)
1 Months Ended 9 Months Ended
Jan. 02, 2015
Aug. 14, 2017
Sep. 30, 2017
Dec. 31, 2016
Preferred Stock Shares Authorized     5,000,000 5,000,000
Stock Issued During Period, Shares, New Issues   1,490,000    
Shares Issued, Price Per Share   $ 5.75    
Stock Issued During Period, Value, New Issues     $ 8,628,500  
Preferred Stock Shares Outstanding     49,626 49,626
Dividends Payable     $ 4,407,158 $ 3,134,129
Common Stock Shares Authorized     100,000,000 100,000,000
Common Stock Shares Issued     22,178,911 19,569,247
Common Stock Shares Outstanding     22,178,911 19,569,247
Common Stock, Par Or Stated Value Per Share     $ 0.001 $ 0.001
Chief Operating Officer [Member]        
Stock Issued During Period, Shares, New Issues   10,000    
Shares Issued, Price Per Share   $ 6.10    
Public Offering [Member]        
Stock Issued During Period, Shares, New Issues   1,500,000    
Shares Issued, Price Per Share   $ 5.75    
Stock Issued During Period, Value, New Issues   $ 7,978,321    
Series A Preferred Stock [Member]        
Conversion of Stock, Description     Each share of Series A Preferred Stock is convertible, at the option of the Series A holder, into 100 shares of the Company’s common stock (determined by dividing the Series A Original Issue Price of $500 by the Series A Conversion Price). The Series A Conversion Price is $5.00, subject to adjustment in the event of stock splits, dividends or other combinations.  
Preferred Stock, Dividend Rate, Percentage     6.00%  
Series A Preferred Stock [Member] | Corporation [Member]        
Stock Issued During Period, Shares, New Issues 49,626      
Shares Issued, Price Per Share $ 500      
Stock Issued During Period, Value, New Issues $ 24,813,000