Supplementary Regulatory Capital Disclosure (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
Total Capital to risk-weighted assets, Actual Amount	$ 278,586	$ 329,276
Total Capital to risk-weighted assets, Actual, Ratio	13.77%	13.54%
Total Capital to risk-weighted assets, Minimum for Capital Adequacy Purposes Amount	$ 161,904	$ 194,566
Total Capital to risk-weighted assets, Minimum for Capital Adequacy Purposes, Ratio	8.00%	8.00%
Total Capital to risk-weighted assets, Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 202,379	$ 243,208
Total Capital to risk-weighted assets, Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	10.00%	10.00%
Tier 1 Capital to average assets, Actual Amount	$ 265,053	$ 314,466
Tier 1 Capital to average assets, Actual, Ratio	10.45%	10.88%
Tier 1 Capital to average assets, Minimum for Capital Adequacy Purposes Amount	$ 101,412	$ 115,583
Tier 1 Capital to average assets, Minimum for Capital Adequacy Purposes, Ratio	4.00%	4.00%
Tier 1 Capital to average assets, Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 126,765	$ 144,479
Tier 1 Capital to average assets, Minimum to Be Well Capitalized Under Prompt Corrective Action Provision, Ratio	5.00%	5.00%
Common equity to risk-weighted assets, Actual Amount	$ 265,053	$ 314,466
Common equity to risk-weighted assets, Actual, Ratio	13.10%	12.93%
Common equity to risk-weighted assets, Minimum for Capital Adequacy Purposes Amount	$ 91,071	$ 109,443
Common equity to risk-weighted assets, Minimum for Capital Adequacy Purposes, Ratio	4.50%	4.50%
Common equity to risk-weighted assets, Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 131,547	$ 158,085
Common equity to risk-weighted assets, Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	6.50%	6.50%
Tier 1 Capital to risk-weighted assets, Actual Amount	$ 265,053	$ 314,466
Tier 1 Capital to risk-weighted assets, Actual, Ratio	13.10%	12.93%
Tier 1 Capital to risk-weighted assets, Minimum for Capital Adequacy Purposes Amount	$ 121,428	$ 145,925
Tier 1 Capital to risk-weighted assets, Minimum for Capital Adequacy Purposes, Ratio	6.00%	6.00%
Tier 1 Capital to risk-weighted assets, Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 161,904	$ 194,566
Tier 1 capital to risk-weighted assets, Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount, Ratio	8.00%	8.00%