Annual report pursuant to Section 13 and 15(d)

Goodwill and Other Identifiable Intangible Assets - Summary of Intangible Assets (Details)

v3.8.0.1
Goodwill and Other Identifiable Intangible Assets - Summary of Intangible Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Finite Lived Intangible Assets [Line Items]    
Gross carrying amount $ 6,338 $ 1,345
Accumulated amortization 1,621 1,104
Net amount $ 4,717 $ 241
Licenses    
Finite Lived Intangible Assets [Line Items]    
Average estimated useful lives (in years) 10 years 10 years
Gross carrying amount $ 185 $ 185
Accumulated amortization 137 118
Net amount $ 48 $ 67
Patents And Websites    
Finite Lived Intangible Assets [Line Items]    
Average estimated useful lives (in years) 5 years 5 years
Gross carrying amount $ 4,173 $ 873
Accumulated amortization 959 810
Net amount $ 3,214 63
Customer Relationships    
Finite Lived Intangible Assets [Line Items]    
Average estimated useful lives (in years) 4 years  
Gross carrying amount $ 1,437  
Accumulated amortization 240  
Net amount $ 1,197  
Non-Compete Agreement    
Finite Lived Intangible Assets [Line Items]    
Average estimated useful lives (in years) 3 years  
Gross carrying amount $ 240  
Accumulated amortization 52  
Net amount 188  
Commercials    
Finite Lived Intangible Assets [Line Items]    
Gross carrying amount 303 287
Accumulated amortization 233 176
Net amount $ 70 $ 111
Commercials | Minimum    
Finite Lived Intangible Assets [Line Items]    
Average estimated useful lives (in years) 2 years 2 years
Commercials | Maximum    
Finite Lived Intangible Assets [Line Items]    
Average estimated useful lives (in years) 3 years 3 years