Annual report pursuant to Section 13 and 15(d)

Capital Stock (Additional Information) (Detail)

v3.8.0.1
Capital Stock (Additional Information) (Detail) - USD ($)
1 Months Ended 12 Months Ended
Aug. 14, 2017
Dec. 02, 2016
Jul. 11, 2016
Jan. 02, 2015
Dec. 19, 2017
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Preferred Stock Shares Authorized           5,000,000 5,000,000    
Stock Issued During Period, Shares, New Issues   2,000,000 1,150,000            
Shares Issued, Price Per Share $ 5.75 $ 7.25 $ 5.75   $ 6.05        
Stock Issued During Period, Value, New Issues   $ 14,500,000 $ 6,612,500     $ 21,128,502 $ 21,112,500    
Preferred Stock, Liquidation Preference Per Share           $ 1,000      
Preferred Stock Shares Outstanding           49,626 49,626    
Preferred Stock Shares Outstanding In Percent liquidation or amendment actions           60.00%      
Dividends Payable           $ 4,849,063      
Common Stock Shares Authorized           100,000,000 100,000,000    
Common Stock Shares Issued           24,276,275 19,569,247    
Common Stock Shares Outstanding           24,276,275 19,569,247    
Common Stock, Par Or Stated Value Per Share           $ 0.001 $ 0.001    
Preferred Stock Shares Issued           49,626 49,626    
Proceeds from Issuance Initial Public Offering           $ 19,238,015      
Class Of Warrant Or Right Outstanding         49,626 1,184,912 401,859 535,091 5,236,660
Class of Warrant or Right, Exercise Price of Warrants or Rights         $ 7.00        
Proceeds from Issuance of Common Stock $ 7,978,321       $ 11,532,502 $ 21,128,502 $ 21,112,500 $ 0  
Class of Warrant or Right, Number of Securities Called by Warrants or Rights         1,033,058     3,559,783  
Class of Warrant or Right,Expiry Term         three-year        
Common Stock [Member]                  
Stock Issued During Period, Shares, New Issues 1,500,000       2,066,116 3,566,116 3,150,000    
Stock Issued During Period, Value, New Issues           $ 3,566 $ 3,150    
Director Two [Member]                  
Preferred Stock Shares Outstanding In Percent           25.00%      
Chief Operating Officer [Member]                  
Stock Issued During Period, Shares, New Issues 10,000                
Shares Issued, Price Per Share $ 6.10                
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 Purchaser, 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%      
Preferred Stock Shares Outstanding In Percent           20.00%      
Description of Preferred Stock           For as long as at least 25% (or 12,406 shares) of the Series A Preferred Stock is outstanding, the Company may not, without the consent of holders of at least 60% of the then outstanding shares of Series A Preferred Stock, take certain actions, including but not limited to: (i) liquidate, dissolve, or wind up the business and affairs of the Company; (ii) amend, alter or repeal any provision of its charter or bylaws in a manner that adversely effects the rights of the Series A Preferred Stock; (iii) create or issue any capital stock that is equal to or senior to the Series A Preferred Stock with respect to preferences; (iv) create or issue any debt security, subject to certain exceptions; (v) pay off any debt obligation prior to its stated maturity date; or (vi) enter into any stockholders rights plan or similar arrangement or take other actions that may limit actions that holders of a majority of the Series A Preferred Stock can take under Section 203 (“Section 203”) of the Delaware General Corporation Law, as well as such other customary provisions protecting the rights of the holder of the Series A Preferred Stock, as are outlined in the Certificate of Designation.      
Series A Preferred Stock [Member] | Director [Member]                  
Preferred Stock Shares Outstanding In Percent           40.00%      
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