Shareholders Equity and Regulatory Matters - Schedule of comparison of the actual capital amounts and ratios (Details) $ in Thousands		Sep. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)
Tier One Risk Based Capital [Abstract]
Total capital (to risk weighted assets), Actual, Amount		$ 187,388	$ 145,319
Total capital (to risk weighted assets), Actual, Ratio		13.0	12.5
Total capital (to risk weighted assets), For Capital Adequacy Purposes, Amount	[1]	$ 151,793	$ 121,639
Total capital (to risk weighted assets), For Capital Adequacy Purposes, Ratio	[1]	10.5	10.5
Total capital (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount		$ 144,564	$ 115,847
Total capital (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio		10.0	10.0
Tier I capital (to risk weighted assets), Actual, Amount		$ 171,817	$ 133,340
Tier I capital (to risk weighted assets), Actual, Ratio		11.9	11.5
Tier I capital (to risk weighted assets), For Capital Adequacy Purposes, Amount	[1]	$ 122,880	$ 98,470
Tier I capital (to risk weighted assets), For Capital Adequacy Purposes, Ratio	[1]	8.5	8.5
Tier I capital (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount		$ 115,652	$ 92,678
Tier I capital (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio		8.0	8.0
Tier I capital (to average assets), Actual, Amount	[2]	$ 171,817	$ 133,340
Tier I capital (to average assets), Actual, Ratio	[2]	9.6	9.7
Tier I capital (to average assets), For Capital Adequacy Purposes, Amount	[1],[2]	$ 71,544	$ 54,969
Tier I capital (to average assets), For Capital Adequacy Purposes, Ratio	[1],[2]	4.0	4.0
Tier I capital (to average assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	[2]	$ 89,430	$ 68,711
Tier I capital (to average assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	[2]	5.0	5.0
Common equity tier 1 (to risk weighted assets), Actual, Amount		$ 171,817	$ 133,340
Common equity tier 1 (to risk weighted assets), Actual, Ratio		11.9	11.5
Common equity tier 1 (to risk weighted assets), For Capital Adequacy Purposes, Amount	[1]	$ 101,195	$ 81,093
Common equity tier 1 (to risk weighted assets), For Capital Adequacy Purposes, Ratio	[1]	7.0	7.0
Common equity tier 1 (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount		$ 93,967	$ 75,301
Common equity tier 1 (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio		6.5	6.5

[1] Percentages represent the minimum capital ratios plus, as applicable, the fully phased-in 2.5% CIT1 capital buffer under the Basel III Capital Rules.

[2] (1) The Tier 1 capital ratio (to average assets) is not impacted by the Basel III Capital Rules; however, the Federal Reserve and the FDIC may require the Bank to maintain a Tier 1 capital ratio (to average assets) above the minimum required.