Regulatory Matters (Schedule of actual capital amounts and ratios) (Details) $ in Thousands	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total capital (to risk-weighted assets) Actual Amount	$ 137,495	$ 129,568
Subsidiaries [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total capital (to risk-weighted assets) Actual Amount	130,217	121,604
Rhinebeck Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total capital (to risk-weighted assets) Actual Amount	$ 130,217	$ 121,604
Total capital (to risk-weighted assets) Actual Ratio	13.54	13.97
Total capital (to risk-weighted assets) For Capital Adequacy Purposes Amount	$ 76,917	$ 69,614
Total capital (to risk-weighted assets) For Capital Adequacy Purposes Ratio	8.00	8.00
Total capital (to risk-weighted assets) To be Well Capitalized under Prompt Corrective Action Provisions Amount	$ 96,146	$ 87,018
Total capital (to risk-weighted assets) To be Well Capitalized under Prompt Corrective Action Provisions Ratio	10.00	10.00
Tier 1 capital (to risk-weighted assets) Actual Amount	$ 122,658	$ 110,717
Tier 1 capital (to risk-weighted assets) Actual Ratio	12.76	12.72
Tier 1 capital (to risk-weighted assets) For Capital Adequacy Purposes Amount	$ 57,687	$ 52,211
Tier 1 capital (to risk-weighted assets) For Capital Adequacy Purposes Ratio	6.00	6.00
Tier 1 capital (to risk-weighted assets) To be Well Capitalized under Prompt Corrective Action Provisions Amount	$ 76,917	$ 69,614
Tier 1 capital (to risk-weighted assets) To be Well Capitalized under Prompt Corrective Action Provisions Ratio	8.00	8.00
Common equity tier one capital (to risk weighted assets) Actual Amount	$ 122,658	$ 110,717
Common equity tier one capital (to risk weighted assets) Actual Ratio	12.76	12.72
Common equity tier one capital (to risk weighted assets) For Capital Adequacy Purposes Amount	$ 43,266	$ 39,158
Common equity tier one capital (to risk weighted assets) For Capital Adequacy Purposes Ratio	4.50%	4.50%
Common equity tier one capital (to risk weighted assets) To be Well Capitalized under Prompt Corrective Action Provisions Amount	$ 62,495	$ 56,562
Common equity tier one capital (to risk weighted assets) To be Well Capitalized under Prompt Corrective Action Provisions Ratio	6.50%	6.50%
Tier 1 capital (to average assets) Actual Amount	$ 122,658	$ 110,717
Tier 1 capital (to average assets) Actual Ratio	9.65	9.95
Tier 1 capital (to average assets) For Capital Adequacy Purposes Amount	$ 50,865	$ 44,529
Tier 1 capital (to average assets) For Capital Adequacy Purposes Ratio	4.00	4.00
Tier 1 capital (to average assets) To be Well Capitalized under Prompt Corrective Action Provisions Amount	$ 63,582	$ 55,662
Tier 1 capital (to average assets) To be Well Capitalized under Prompt Corrective Action Provisions Ratio	5.00	5.00