Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Supplemental Cash Flow Elements [Abstract]
Accruals and accounts payable for the purchase of BWTS	$ 435	$ 3,010
Accruals and accounts payable for transaction costs in connection with repurchase of Common Stock	1,622	0
Accruals for dividends payable	221	1,237
Accruals and accounts payable for the purchase of vessels and vessel improvements	$ 55	$ 6