Other Long-term Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Amount
Long-term debt	$ 5,573	$ 56,258
Borrowings from FHLB [Member]
Amount
2015	712	50,685
2016	739	712
2017	769	739
2018	799	769
2019	830	799
Thereafter	$ 1,724	$ 2,554
2015, Weighted Average Contractual Rate	3.85%	2.32%
2016, Weighted Average Contractual Rate	3.86%	3.85%
2017, Weighted Average Contractual Rate	3.86%	3.86%
2018, Weighted Average Contractual Rate	3.86%	3.86%
2019, Weighted Average Contractual Rate	3.87%	3.86%
Thereafter, Weighted Average Contractual Rate	3.68%	3.74%