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Related Parties	12 Months Ended
Related Parties	Dec. 31, 2020
Related Parties [Abstract]
Related Parties	Note S - Related Parties The Company utilizes the services of an investment firm of which one director of the Company is a partial owner. This investment firm manages equity securities and fixed income portfolios held by the Company with an aggregate market value of approximately $7,796 at December 31, 2020. Total commissions and net fees earned by this investment firm and its affiliates on these portfolios were $110, $145 and $103 for the years ended December 31, 2020, 2019 and 2018.