Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Consolidated Statements of Comprehensive (Loss) Income [Abstract]
Net (loss) income	$ (467)	$ 6,701	$ 8,878	$ (57,609)
Other comprehensive (loss) income:
Change in net actuarial gain	44	35	87	69
Tax effect on change in net actuarial gain	(9)	(7)	(18)	(14)
Unrealized holding gains arising during the period	2,202	8,430	2,787	1,443
Tax effect on unrealized holding gains arising during the period	(462)	(1,771)	(585)	(304)
Reclassification adjustment for (losses) gains included in net (loss) income	(2,826)	414	(4,229)	(5,222)
Tax effect on reclassification adjustment for gains (losses) included in net (loss) income	593	(87)	888	1,097
Other comprehensive (loss) gain, net of tax	(458)	7,014	(1,070)	(2,931)
Comprehensive (loss) income	$ (925)	$ 13,715	$ 7,808	$ (60,540)