XML 17 R54.htm IDEA: XBRL DOCUMENT v3.19.3
Stock-Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 28, 2019
Sep. 29, 2018
Sep. 28, 2019
Sep. 29, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation arrangement by share-based payment award, percentage of outstanding stock maximum     5.00%  
Share-based compensation arrangement by share-based payment award, percentage of outstanding and available for grant, maximum     10.00%  
Compensation expense, share-based payment plans $ 655 $ 785 $ 2,184 $ 2,578
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]        
Volatility rate     9.90% 10.10%
Risk-free interest rate     2.30% 2.70%
Expected dividend yield     0.70% 0.70%
Expected life of awards (years)     8 years 9 months 18 days 9 years 2 months 12 days
Stock option plans [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation expense, share-based payment plans     $ 444 $ 506
Stock options awarded, term (years)     10 years  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]        
Outstanding, beginning balance     1,466,264  
Granted     151,145  
Exercised     (91,739)  
Forfeited     (20,160)  
Outstanding, ending balance 1,505,510   1,505,510  
Exercisable, ending balance 1,015,025   1,015,025  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]        
Outstanding, weighted average exercise price, beginning balance     $ 13.94  
Granted, weighted average exercise price     21.10  
Exercised, weighted average exercise price     10.48  
Forfeited, weighted average exercise price     17.67  
Outstanding, weighted average exercise price, ending balance $ 14.82   14.82  
Exercisable, weighted average exercise price, ending balance $ 13.08   $ 13.08  
Outstanding, weighted average remaining contractual life (years)     5 years 8 months 12 days  
Exercisable, weighted average remaining contractual life (years)     4 years 6 months  
Outstanding, aggregate intrinsic value $ 11,713   $ 11,713  
Exercisable, aggregate intrinsic value 9,667   9,667  
Outstanding, unrecognized compensation cost $ 1,484   $ 1,484  
Employee service share-based compensation, nonvested awards, total compensation cost not yet recognized, period for recognition     2 years 8 months 12 days  
Stock-settled stock appreciation rights (SSARs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation expense, share-based payment plans     $ 269 406
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]        
Unvested, beginning balance     380,982  
Granted     0  
Forfeited     (3,197)  
Vested     (115,080)  
Unvested, ending balance 262,705   262,705  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]        
Unvested, weighted average award date value, beginning balance     $ 3.42  
Granted, weighted average award date value     0  
Forfeited, weighted average award date value     3.43  
Vested, weighted average award date value     3.31  
Unvested, weighted average award date value, ending balance $ 3.47   $ 3.47  
Weighted average remaining contractual life (years)     1 year 8 months 12 days  
Unrecognized compensation cost $ 631   $ 631  
Aggregate intrinsic value $ 5,937   $ 5,937  
Nonemployee director SSARs [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]        
Granted     11,942  
Restricted stock units (RSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation expense, share-based payment plans     $ 605 901
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]        
Unvested, beginning balance     247,838  
Granted     40,988  
Forfeited     (4,093)  
Vested     (60,474)  
Unvested, ending balance 224,259   224,259  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]        
Unvested, weighted average award date value, beginning balance     $ 15.68  
Granted, weighted average award date value     20.45  
Forfeited, weighted average award date value     16.39  
Vested, weighted average award date value     13.55  
Unvested, weighted average award date value, ending balance $ 17.11   $ 17.11  
Weighted average remaining contractual life (years)     2 years 1 month 6 days  
Unrecognized compensation cost $ 1,839   $ 1,839  
Aggregate intrinsic value $ 5,068   $ 5,068  
Employee PRSUs [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]        
Granted     29,046  
Unvested, ending balance 192,837   192,837  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]        
Unvested, weighted average award date value, ending balance $ 16.80   $ 16.80  
Weighted average remaining contractual life (years)     2 years 3 months 18 days  
Unrecognized compensation cost $ 1,474   $ 1,474  
Aggregate intrinsic value $ 4,358   $ 4,358  
Nonemployee Director RSUs [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]        
Unvested, ending balance 31,422   31,422  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]        
Unvested, weighted average award date value, ending balance $ 19.01   $ 19.01  
Weighted average remaining contractual life (years)     1 year 8 months 12 days  
Unrecognized compensation cost $ 365   $ 365  
Aggregate intrinsic value $ 710   710  
The Davey Employee Stock Purchase Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation expense, share-based payment plans     $ 866 $ 765
Employee stock purchase plan, service period     1 year  
Employee stock purchase plan, percentage of market price, purchase date     85.00%  
Employee stock purchase plan, discount from market price, purchase date     15.00%