Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Narrative) (Details)

v3.20.1
Stock-Based Compensation (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 29, 2020
Mar. 31, 2019
Stock-based compensation $ 856 $ 750
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 198,512  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term 2 years 5 months 12 days  
Share-based Payment Arrangement, Option [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 5 years  
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period 10 years  
2012 Omnibus Equity Incentive Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 69,850  
2012 Omnibus Equity Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member]    
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount $ 10,300  
Minimum [Member] | Restricted Stock Units (RSUs) [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 4 years  
Maximum [Member] | Restricted Stock Units (RSUs) [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 5 years