CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 10,618	$ 11,353	$ 12,479	$ 23,499
Other comprehensive income:
Change in net unrealized holding (losses) gains on available-for-sale securities and I/O strips	(556)	4,333	6,621	9,204
Deferred income taxes	161	(1,261)	(1,920)	(2,728)
Change in net unamortized unrealized gain on securities available-for-sale that were reclassified to securities held-to-maturity	(13)	(13)	(26)	(39)
Deferred income taxes	4	4	8	12
Reclassification adjustment for gains realized in income	(170)	(548)	(270)	(548)
Deferred income taxes	50	162	79	162
Change in unrealized (losses) gains on securities and I/O strips, net of deferred income taxes	(524)	2,677	4,492	6,063
Change in net pension and other benefit plan liability adjustment	75	11	150	23
Deferred income taxes	(22)	(3)	(44)	(7)
Change in pension and other benefit plan liability, net of deferred income taxes	53	8	106	16
Other comprehensive (losses) income	(471)	2,685	4,598	6,079
Total comprehensive income	$ 10,147	$ 14,038	$ 17,077	$ 29,578