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Related Parties	9 Months Ended
Related Parties	Sep. 30, 2019
Related Parties [Abstract]
Related Parties	(12) 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 $8,885 at September 30, 2019. Total commissions and net fees earned by this investment firm and its affiliates on these portfolios were $12 and $81 for the nine months ended September 30, 2019 and 2018.