XML 65 R54.htm IDEA: XBRL DOCUMENT v3.20.2
SHARE-BASED COMPENSATION - Summary of Stock Option and Restricted Stock Activity (Details) - Stock options and restricted stock
$ / shares in Units, $ in Thousands
6 Months Ended 12 Months Ended
Jun. 28, 2020
USD ($)
$ / shares
shares
Dec. 29, 2019
USD ($)
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Beginning number of shares, outstanding (in shares) | shares 582,845  
Number of shares, outstanding (in shares) | shares 582,845 582,845
Ending number of shares, options exercisable | shares 340,995 313,645
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Weighted Average Exercise Price [Roll Forward]    
Beginning balance of options outstanding (in dollars per share) | $ / shares $ 18.32  
Ending balance of options outstanding (in dollars per share) | $ / shares 18.32 $ 18.32
Options exercisable at end of period | $ / shares $ 16.47 $ 16.05
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Roll Forward]    
Options outstanding, weighted average remaining contractual term 7 years 7 years 6 months
Optons exercisable, weighted average remaining contractual term 6 years 4 months 24 days 6 years 9 months 18 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value [Roll Forward]    
Beginning balance, intrinsic value | $ $ 2,793  
Ending value, intrinsic value | $ 343 $ 2,793
Options exercisable, aggregate intrinsic value | $ $ 158 $ 1,991
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]    
Nonvested, number of shares | shares 241,850 269,200
Nonvested options, weighted average grant date fair value | $ / shares $ 20.93 $ 20.96