Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details)

v3.20.1
Stock-Based Compensation (Details) - USD ($)
3 Months Ended
Mar. 05, 2021
Mar. 05, 2020
Mar. 03, 2020
Mar. 31, 2020
Mar. 31, 2019
Share-based Compensation       $ 922,000 $ 771,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage       100.00%  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized       $ 5,200  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition       1 year 7 months 6 days  
Performance Goals For Awards       100%  
Additional Earn Up Rate For Grantee       150.00%  
2017 Program [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 50.00% 50.00%      
Long-Term Awards [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate       0.00%  
Long-Term Awards [Member] | Long Term Incentive Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate       200.00%  
Long Tem Incentives Plan Units [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 50.00% 50.00%      
Long Tem Incentives Plan Units [Member] | 2016 Equity Incentive Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant       1,084,000  
Common Stock, Capital Shares Reserved for Future Issuance       1,763,000  
Long Tem Incentives Plan Units [Member] | Long Term Performance Award Agreements 2017 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period     154,903    
Long Tem Incentives Plan Units [Member] | Long Term Performance Award Agreements 2017 [Member] | Share-based Compensation Award, Tranche One [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate     50.00%    
Long Tem Incentives Plan Units [Member] | Long Term Performance Award Agreements 2017 [Member] | Share-based Compensation Award, Tranche Two [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate     50.00%    
Long Tem Incentives Plan Units [Member] | Annual Award Agreements 2019 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period     146,938    
Long Tem Incentives Plan Units [Member] | Annual Award Agreements 2019 [Member] | Share-based Compensation Award, Tranche One [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate     50.00%    
Long Tem Incentives Plan Units [Member] | Annual Award Agreements 2019 [Member] | Share-based Compensation Award, Tranche Two [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate     50.00%    
Long Tem Incentives Plan Units [Member] | Long Term Incentive Plan 2020 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period     42,726    
Share Price     $ 14.34    
Long Tem Incentives Plan Units [Member] | Long Term Incentive Plan 2020 [Member] | Share-based Compensation Award, Tranche One [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate     33.33%    
Long Tem Incentives Plan Units [Member] | Long Term Incentive Plan 2020 [Member] | Share-based Compensation Award, Tranche Two [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate     33.33%    
Long Tem Incentives Plan Units [Member] | Long Term Incentive Plan 2020 [Member] | Share-based Payment Arrangement, Tranche Three [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate     33.33%