Employee Benefit Plans (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 1988	Dec. 31, 1987	Dec. 31, 2019	Dec. 31, 1985
Defined Benefit Plan Disclosure [Line Items]
Amount borrowed						$ 2,000,000
Employee stock ownership plan debt structure interest rate description	prime rate
Employee stock ownership plan, term of loan	40 years
Employee stock ownership plan, amount of additional loan			$ 1,942,000	$ 1,942,000
Outstanding shares subject to repurchase obligation	0
ESOP, number of allocated shares since inception	384,014
ESOP, number of unallocated shares	56,635	71,744
ESOP, compensation expenses	$ 101,000	$ 101,000
Other Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Future obligation of benefits	5,865,000	2,529,000			$ 2,126,000
Benefit cost	188,000	$ 168,000
Net loss to be amortized from AOCI to benefit cost	$ 151,000
Medical inflation rate for next year	10.00%
Grading down percentage for each year	0.50%
Floor rate	5.00%