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Financial Instruments and Fair Value Disclosures
12 Months Ended
Dec. 31, 2021
Financial Instruments and Fair Value Disclosures [Abstract]  
Financial Instruments and Fair Value Disclosures
14.      Financial Instruments and Fair Value Disclosures

The carrying values of temporary cash investments, accounts receivable and accounts payable approximate their fair value due to the short-term nature of these financial instruments. The fair values of long-term bank loans approximate the recorded values, due to their variable interest rates. The Company is exposed to interest rate fluctuations associated with its variable rate borrowings and its objective is to manage the impact of such fluctuations on earnings and cash flows of its borrowings. Currently, the Company does not have any derivative instruments to manage such fluctuations.