Quarterly report pursuant to Section 13 or 15(d)

Revenue from Contracts with Customers (Details)

v3.20.1
Revenue from Contracts with Customers (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax $ 62,027 $ 84,635    
Customer contract liabilities 14   $ 107  
Accrued price protection liability 8,024 18,943 12,557 $ 16,454
Right of return assets 300   300  
Connected Home [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 32,254 43,432    
Infrastructure [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 17,542 22,102    
Industrial and multi-market [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax $ 12,231 $ 19,101    
Revenue Benchmark [Member] | Connected Home [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk percentage 52.00% 51.00%    
Revenue Benchmark [Member] | Infrastructure [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk percentage 28.00% 26.00%    
Revenue Benchmark [Member] | Industrial and multi-market [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk percentage 20.00% 23.00%    
Accounts Receivable [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Impairment losses $ 0   0  
Reduction in Transaction Price [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Accrued obligations to customers for price adjustments 9,053   8,382  
Sales Returns and Allowances [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Accrued obligations to customers for stock rotation rights $ 1,572   $ 1,410  
Revenue from Distributors [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk percentage 61.00% 41.00%