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Pension and Profit Sharing - Amounts Recognized in Other Comprehensive Income (Details) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017
Retirement Benefits [Abstract] |  |  |  |
Balance at beginning of the year | $ 915,495 | $ 1,130,815 |  |
Change in net loss | 53,860 | (106,725) |  |
Amortization of actuarial loss | (87,360) | (108,052) |  |
Amortization of prior service cost | (543) | (543) |  |
Change recognized in other comprehensive income | (34,043) | (215,320) |  |
Total recognized in other comprehensive income | 881,452 | 915,495 |  |
Amounts recognized in accumulated other comprehensive income: |  |  |  |
Net actuarial loss |  |  | $ 880,370 | $ 913,870
Prior service cost |  |  | 1,082 | 1,625
Total | $ 915,495 | $ 1,130,815 | $ 881,452 | $ 915,495

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