Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Components of Other Comprehensive Income (Loss) and Related Tax Effects

The components of other comprehensive income (loss) and related tax effects are as follows:

	(In Thousands)
	2020			2019		2018
Net unrealized gain (loss) on  available-for-sale    securities	$	6,091		$	5,179	$	(1,058	)
Reclassification adjustment for (gain) loss on sale of    available-for-sale securities		(270	)		26		9
Net unrealized gain (loss) on  available-for-sale    securities		5,821			5,205		(1,049	)
Tax expense (benefit)		1,222			1,093		(220	)
Other comprehensive income (loss)	$	4,599		$	4,112	$	(829	)