Pension Plans. (Tables)

12 Months Ended

Dec. 31, 2020

Retirement Plan [Member]

Pension Plans [Abstract]

Schedule of information related to the retirement plan

	2020			2019
Changes in plan assets:
Fair value of plan assets, beginning	$	15,654		$	13,257
Actual gains		1,969			2,692
Benefits paid		(721	)		(698	)
Company contributions		686			403
Participant contributions		—			—
Fair value of plan assets, ending	$	17,588		$	15,654
Less: projected accumulated benefit obligation	$	24,629		$	21,643
Funded status, (underfunded)/overfunded	$	(7,041	)	$	(5,989	)
Amounts recognized in the consolidated balance sheets:
Other liabilities	$	(7,041	)	$	(5,989	)
Accumulated other comprehensive loss	$	3,199		$	1,654
Components of net periodic benefit costs are as follows:
Service cost	$	405		$	374
Interest cost		690			760
Expected return on plan assets		(903	)		(760	)
Net periodic benefit cost	$	192		$	374
Loss recognized in other comprehensive expense	$	1,545		$	585
Assumptions used in computation of benefit obligations:
Discount rate		2.50	%		3.25	%
Expected long-term return on plan assets		6.25	%		6.25	%
Rate of compensation increase		—			—

Schedule of expected benefit payments

December 31:
2021	$	830
2022		860
2023		900
2024		930
2025		990
2026-30		5,510
	$	10,020

Postretirement Plan [Member]

Pension Plans [Abstract]

Schedule of expected benefit payments

December 31:
2021	$	300
2022		270
2023		290
2024		330
2025		330
2026-2030		2,040
	$	3,560

Schedule of defined contribution plan

	December 31,
	2020			2019
Amounts at the end of the year:
Accumulated/projected benefit obligation	$	5,296		$	5,274
Fair value of plan assets		—			—
Funded status, (underfunded)/overfunded	$	(5,296	)	$	(5,274	)
Amounts recognized in the consolidated balance sheets:
Accrued liabilities	$	(300	)	$	(280	)
Other liabilities	$	(4,996	)	$	(4,994	)
Accumulated other comprehensive loss	$	679		$	716

	Years Ended December 31,
	2020			2019
Amounts recognized in the plan for the year:	$	174		$	171
Participant contributions	$	26		$	24
Benefits paid	$	(200	)	$	(195	)
Components of net periodic benefit costs are as follows:
Service cost	$	54		$	67
Interest cost		151			219
Amortization of prior service costs		30			122
Net periodic benefit cost	$	235		$	408
Gain recognized in other comprehensive income	$	(37	)	$	(674	)
Discount rate used in computation of benefit obligations		2.05	%		2.95	%