Fair Values of Financial Instruments - Estimated fair values (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Carrying Value
Financial Assets:
Cash and Cash Equivalents	$ 11,875	$ 3,090
Interest-Bearing Deposits	1,740	750
Investment Securities	5,320	5,781
Loans - Net	78,785	81,072
Loans Held-for-Sale	1,637	533
Accrued Interest Receivable	321	337
FHLB Stock	1,418	1,376
Cash Surrender Value of Life Insurance	4,044	3,950
Financial Liabilities:
Deposits	58,045	56,183
Advances from FHLB	21,581	26,030
Accrued Interest Payable	137	136
Fair Value
Financial Assets:
Cash and Cash Equivalents	11,875	3,090
Interest-Bearing Deposits	1,740	750
Investment Securities	5,320	5,781
Loans - Net	82,300	81,442
Loans Held-for-Sale	1,637	533
Accrued Interest Receivable	321	337
FHLB Stock	1,418	1,376
Cash Surrender Value of Life Insurance	4,044	3,950
Financial Liabilities:
Deposits	59,053	55,507
Advances from FHLB	22,007	25,907
Accrued Interest Payable	$ 137	$ 136