Annual report pursuant to Section 13 and 15(d)

Revenue from Contracts with Customers (Details)

v3.10.0.1
Revenue from Contracts with Customers (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net revenue $ 87,627 $ 85,010 $ 101,533 $ 110,827 $ 113,721 $ 113,581 $ 104,175 $ 88,841 $ 384,997 $ 420,318 $ 387,832
Contract with Customer, Right to Recover Product 300               300    
Contract with Customer, Liability 71               71    
Accrued price protection liability 16,454       $ 21,571       16,454 21,571 15,176
Accounts Receivable [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Asset Impairment Charges                 0    
Reduction in Transaction Price [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Customer Refund Liability, Current 7,558               7,558    
Sales Returns and Allowances [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Accrued obligations to customers for stock rotation rights $ 1,494               1,494    
Connected Home [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net revenue                 207,336 288,610 346,990
Infrastructure [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net revenue                 82,388 71,779 37,411
Industrial and multi-market [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net revenue                 $ 95,273 $ 59,929 $ 3,431
Sales Revenue, Net [Member] | Connected Home [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Concentration Risk, Percentage                 54.00% 69.00% 89.00%
Sales Revenue, Net [Member] | Infrastructure [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Concentration Risk, Percentage                 21.00% 17.00% 10.00%
Sales Revenue, Net [Member] | Industrial and multi-market [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Concentration Risk, Percentage                 25.00% 14.00% 1.00%