v3.19.1
Summary of Significant Accounting Policies; Prior Period Reclassification - Additional Information (Detail)
12 Months Ended
Dec. 31, 2018
USD ($)
Segment
Stock_Split
Customer
shares
Dec. 31, 2017
USD ($)
Customer
shares
Jan. 01, 2019
USD ($)
Jun. 30, 2018
$ / $
May 16, 2018
Summary Of Significant Accounting Policies [Line Items]          
Exchange rate | $ / $       28.880  
Loss on foreign currency transactions $ 479,000        
Maturity of cash equivalents 90 days        
Deposits with certain financial institutions $ 2,375,000 $ 924,000      
Accounts receivable, allowance for doubtful accounts 73,000 9,000      
Inventory net of write-downs $ 351,000 36,000      
Number of operating segments | Segment 2        
Goodwill impairment charges $ 13,678,000 0      
Advertising expense $ 334,000 $ 193,000      
Percentage of tax benefit likely to being realized upon settlement 50.00%        
Uncertain tax positions $ 0        
Anti-dilutive securities excluded from computation of earnings per share | shares 161,000 34,000      
Number of reverse stock splits | Stock_Split 2        
Decrease in cash used in investing activities $ (912,000) $ 470,000      
ASU 2016-18 [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Decrease in cash used in investing activities   $ 1,008,000      
ASU 2016-02 [Member] | Subsequent Events [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Right-of-use assets     $ 4,642,000    
Supplier Concentration Risk [Member] | Cost of Goods, Total [Member] | Major Supplier One [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Concentration Risk, Percentage 36.00% 44.00%      
Supplier Concentration Risk [Member] | Cost of Goods, Total [Member] | Major Supplier Two [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Concentration Risk, Percentage 24.00% 12.00%      
Supplier Concentration Risk [Member] | Cost of Goods, Total [Member] | Major Supplier Three [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Concentration Risk, Percentage 10.00% 11.00%      
Customer Concentration Risk [Member] | Sales Revenue, Net [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Concentration Risk, Percentage 10.00% 10.00%      
Number of customers | Customer 0 0      
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Major Customer One [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Concentration Risk, Percentage 30.00% 84.00%      
Apple Products [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Percentage of product sales 77.00%        
Preferred Shares [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Anti-dilutive securities excluded from computation of earnings per share | shares 322,000 0      
In The Money Warrants [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Anti-dilutive securities excluded from computation of earnings per share | shares 5,192,000 0      
Verykool Products [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Goodwill impairment charges $ 3,343,000        
Verykool Products [Member] | Customer Concentration Risk [Member] | Current Assets [Member] | Major Customer One [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Concentration Risk, Percentage 49.00%        
Factoring [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Gross amount on factoring facilities   $ 2,557,000      
Interest Expense [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Cost of factoring of accounts receivable   $ 85,000      
Minimum [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Estimated useful lives of property and equipment 3 years        
Maximum [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Estimated useful lives of property and equipment 5 years        
Argentina [Member] | OneClick [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Loss on foreign currency transactions $ 470,000        
Argentina [Member] | Minimum [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Percentage of cumulative inflation rate         100.00%