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v3.20.4

Summary of Significant Accounting Policies Textuals (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Change in Accounting Estitmate |  |
Change In Accounting Estimate Carrying Value Property Plant And Equipment |  | $ 500
Change In Accounting Estitmate After Tax Impact Net Earnings | $ 342 | $ 161
Accounting Estimate Change Effect Of Change On Basic And Diluted Eanrings Per Share | $ 0.10 | $ 0.04

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