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Stock Options and Awards (Details)
3 Months Ended 12 Months Ended
Mar. 30, 2019
USD ($)
Plan
$ / shares
shares
Mar. 31, 2018
USD ($)
$ / shares
shares
Dec. 29, 2018
$ / shares
shares
Stock Options [Abstract]      
Number of plans that have shares reserved for further issuance | Plan 1    
Minimum [Member]      
Stock Options [Abstract]      
Percentage of fair market value of stock on grant date for exercise price 100.00%    
Stock Options [Member]      
Number of Units, Stock Appreciation Rights (SARs) [Roll Forward]      
Outstanding at beginning of period (in shares) | shares 25,000 25,000 25,000
Issued (in shares) | shares 0 0 0
Forfeited (in shares) | shares 0   0
Outstanding at end of period (in shares) | shares 25,000   25,000
Weighted - Average Exercise Price, Stock Appreciation Rights (SARs) [Abstract]      
Outstanding at beginning of period (in dollars per share) $ 0 $ 0 $ 0
Issued (in dollars per share) 0   0
Forfeited (in dollars per share) 0   0
Outstanding at end of period (in dollars per share) 0   $ 0
SARs Grants Outstanding and Exercisable [Abstract]      
Maximum Range of Exercise Prices (in dollars per share) $ 0    
Outstanding (in shares) | shares 25,000    
Weighted- Average Remaining Contractual Life 3 years    
Weighted- Average Exercise Price (in dollars per share) $ 0    
Exercisable (in shares) | shares 0    
Exercisable, Weighted- Average Remaining Contractual life 0 years    
Exercisable, Weighted- Average Exercise Price (in dollars per share) $ 0    
Stock Appreciation Rights (SARs) [Member]      
Stock Options [Abstract]      
Stock-based compensation expense | $ $ 80,000 $ 56,000  
Number of Units, Stock Appreciation Rights (SARs) [Roll Forward]      
Outstanding at beginning of period (in shares) | shares 189,167 141,500 141,500
Issued (in shares) | shares 36,000   51,000
Exercised (in shares) | shares (1,667)   0
Forfeited (in shares) | shares 0   (3,333)
Outstanding at end of period (in shares) | shares 223,500   189,167
Weighted - Average Exercise Price, Stock Appreciation Rights (SARs) [Abstract]      
Outstanding at beginning of period (in dollars per share) $ 21.46 $ 20.36 $ 20.36
Issued (in dollars per share) 26.30   24.90
Exercised (in dollars per share) 19.10   0
Forfeited (in dollars per share) 0   19.10
Outstanding at end of period (in dollars per share) 22.15   $ 21.46
SARs Grants Outstanding and Exercisable [Abstract]      
Minimum Range of Exercise Prices (in dollars per share) 19.10    
Maximum Range of Exercise Prices (in dollars per share) $ 26.30    
Outstanding (in shares) | shares 223,500    
Weighted- Average Remaining Contractual Life 3 years 7 months 6 days    
Weighted- Average Exercise Price (in dollars per share) $ 22.15    
Exercisable (in shares) | shares 38,003    
Exercisable, Weighted- Average Remaining Contractual life 3 years    
Exercisable, Weighted- Average Exercise Price (in dollars per share) $ 19.10    
Restricted Stock [Member]      
Stock Options [Abstract]      
Issued (in shares) | shares 0 0  
Stock Options and SARs [Member]      
SARs Grants Outstanding and Exercisable [Abstract]      
Outstanding options, intrinsic value | $ $ 1,864,760    
2010 Plan [Member]      
Stock Options [Abstract]      
Expected term 3 years 6 months 3 years 6 months  
Volatility deviation 28.88% 29.50%  
Risk free rate 2.48% 2.33%  
Shares available for future grant (in shares) | shares 238,500