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Stockholders’ Equity and Stock-Based Compensation - Stock Option Activity (Details) - Equity Incentive Plan
$ / shares in Units, $ in Thousands
9 Months Ended
Sep. 28, 2019
USD ($)
$ / shares
shares
Options Outstanding  
Outstanding, beginning of period (In shares) | shares 524,725
Options exercised (In shares) | shares (112,956)
Outstanding, end of period (In shares) | shares 411,769
Exercisable (In shares) | shares 411,769
Weighted Average Exercise Price  
Outstanding, beginning of period (In dollars per share) | $ / shares $ 8.00
Options exercised (In dollars per share) | $ / shares 6.67
Outstanding, end of period (In dollars per share) | $ / shares 8.36
Exercisable (In dollars per share) | $ / shares $ 8.36
Additional Disclosures  
Outstanding, weighted average remaining contractual life 2 years 4 months 24 days
Exercisable, weighted average remaining contractual life 2 years 4 months 24 days
Outstanding, aggregate intrinsic value | $ $ 4,167,393
Exercisable, aggregate intrinsic value | $ $ 4,167,393
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number | shares 411,769
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price | $ / shares $ 8.36
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term 2 years 4 months 24 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value | $ $ 4,167,393