Stock Based Compensation (Details) | 3 Months Ended | 12 Months Ended |
Mar. 31, 2018USD ($)Plan$ / sharesshares | Apr. 01, 2017USD ($)$ / sharesshares | Dec. 30, 2017$ / sharesshares |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | |
Number of plans that have shares reserved for further issuance | Plan | 1 | | |
Minimum [Member] | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | |
Percentage of fair market value of stock on grant date for exercise price | 100.00% | | |
Stock Appreciation Rights (SARs) [Member] | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | |
Stock-based compensation expense | $ | $ 56,000 | $ 7,000 | |
Number of Units [Roll Forward] | | | |
Outstanding at beginning of period (in shares) | shares | 141,500 | 0 | 0 |
Issued (in shares) | shares | 51,000 | | 149,500 |
Forfeited (in shares) | shares | (2,000) | | (8,000) |
Outstanding at end of period (in shares) | shares | 190,500 | | 141,500 |
Weighted - Average Exercise Price [Roll Forward] | | | |
Outstanding at beginning of period (in dollars per share) | $ 20.36 | $ 0 | $ 0 |
Issued (in dollars per share) | 24.90 | | 20.39 |
Forfeited (in dollars per share) | 19.10 | | 21.10 |
Outstanding at end of period (in dollars per share) | 21.44 | | $ 20.36 |
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) | $ 24.90 | | |
Outstanding (in shares) | shares | 190,500 | | |
Weighted- Average Remaining Contractual Life | 4 years 2 months 12 days | | |
Weighted- Average Exercise Price (in dollars per share) | $ 21.44 | | |
Exercisable (in shares) | shares | 20,670 | | |
Exercisable, Weighted- Average Remaining Contractual life | 4 years | | |
Exercisable, Weighted- Average Exercise Price (in dollars per share) | $ 19.10 | | |
Stock Options [Member] | | | |
Number of Units [Roll Forward] | | | |
Outstanding at beginning of period (in shares) | shares | 25,000 | 0 | 0 |
Issued (in shares) | shares | 0 | 0 | 25,000 |
Forfeited (in shares) | shares | 0 | | 0 |
Outstanding at end of period (in shares) | shares | 25,000 | | 25,000 |
Weighted - Average Exercise Price [Roll Forward] | | | |
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 | 4 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 | | |
Restricted Stock [Member] | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | |
Restricted stock granted (in shares) | shares | 0 | 0 | |
Stock Options and SARs [Member] | | | |
SARs Grants Outstanding and Exercisable [Abstract] | | | |
Outstanding options, intrinsic value | $ | $ 2,040,450 | | |
2010 Plan [Member] | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | |
Shares available for future grant (in shares) | shares | 275,000 | | |