v3.19.1
Subsequent Events - Additional Information (Detail) - USD ($)
3 Months Ended
May 13, 2019
May 09, 2019
Apr. 25, 2019
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Subsequent Event [Line Items]            
Notes payable, outstanding amount       $ 8,833,000   $ 9,117,000
Equity shares, grants       0 0  
Subsequent Events [Member]            
Subsequent Event [Line Items]            
Equity shares, grants 700,000          
Equity shares, vested 550,000          
Equity remaining shares to be vest 150,000          
Equity shares, vesting period 3 years          
Subsequent Events [Member] | Unsecured Promissory Note [Member]            
Subsequent Event [Line Items]            
Notes payable, outstanding amount     $ 750,000      
Notes payable, maturity date     May 31, 2019      
Notes payable, interest rate     0.00%      
Notes payable, fixed fee     $ 2,500      
Simply Mac, Inc. [Member] | Subsequent Events [Member] | Stock Purchase Agreement [Member]            
Subsequent Event [Line Items]            
Stock purchase agreement date   May 09, 2019        
Aggregate consideration for stock purchase subject to adjustments   $ 6,900,000        
Cash consideration   $ 8,000,000