Fair Value of Financial Instruments - Carrying Amounts and Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financial Assets:
Cash and cash equivalents	$ 106,405	$ 86,036
Loans held for sale	26,659	2,100
Loans receivable, net	1,109,217	1,009,490
Accrued interest receivable, net	3,985	3,166
Financial Liabilities:
Deposit	1,200,789	1,021,571
'FHLB Advances	5,000
Accrued interest payable	1,021	2,686
Carrying Amount
Financial Assets:
Cash and cash equivalents	106,405	86,036
Loans held for sale	26,659	2,100
Loans receivable, net	1,084,384	980,088
Accrued interest receivable, net	3,985	3,166
Other investments:
FHLB and PCBB stock	6,233	5,548
Financial Liabilities:
Deposit	1,200,090	1,020,711
'FHLB Advances	5,000
Accrued interest payable	1,021	2,686
Level 1
Financial Assets:
Cash and cash equivalents	106,405	86,036
Accrued interest receivable, net	7	41
Level 2
Financial Assets:
Loans held for sale	26,659	2,100
Accrued interest receivable, net	249	243
Financial Liabilities:
Deposit	1,200,789	1,021,571
'FHLB Advances	5,000
Accrued interest payable	1,021	2,686
Level 3
Financial Assets:
Loans receivable, net	1,109,217	1,009,490
Accrued interest receivable, net	$ 3,729	$ 2,882