v3.19.1
Merger with Cooltech - Summary of Purchase Price Allocated to Net Assets Acquired in Transaction (Detail) - USD ($)
$ in Thousands
Mar. 12, 2018
Dec. 31, 2017
Business Acquisition [Line Items]    
Goodwill   $ 5,936
Cooltech Holding Corp. ("Cooltech") [Member]    
Business Acquisition [Line Items]    
Cash $ 1,264  
Accounts receivable 2,692  
Inventory 3,190  
Prepaid assets 1,454  
Property and equipment 58  
Goodwill 3,343  
Other assets 28  
Accounts payable (2,744)  
Accrued expenses (2,396)  
Long-term convertible debt (735)  
Total net assets acquired $ 6,154