Regulatory Matters (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Total Capital to Risk Weighted Assets, Amount [Abstract]
Capital Amount	$ 106,029	$ 106,443
Minimum Capital Requirement	$ 69,055	$ 58,678
Total Capital to Risk Weighted Assets, Ratio [Abstract]
Capital Ratio	12.28%	14.51%
Minimum Capital Requirement	8.00%	8.00%
Tier 1 Capital to Risk Weighted Assets, Amount [Abstract]
Capital Amount	$ 96,474	$ 98,198
Minimum Capital Requirement	$ 51,791	$ 44,009
Tier 1 Capital to Risk Weighted Assets, Ratio [Abstract]
Capital Ratio	11.18%	13.39%
Minimum Capital Requirement	6.00%	6.00%
Common Equity Tier 1 Capital to Risk Weighted Assets, Amount [Abstract]
Capital Amount	$ 96,474	$ 98,198
Common Equity Tier One Capital Required for Capital Adequacy	$ 38,843	$ 33,007
Common Equity Tier 1 Capital to Risk Weighted Assets, Ratio [Abstract]
Capital Ratio	11.18%	13.39%
Minimum Capital Requirement	4.50%	4.50%
Tier 1 Capital to Average Assets, Amount [Abstract]
Capital Amount	$ 96,474	$ 98,198
Minimum Capital Requirement	$ 38,686	$ 36,768
Tier 1 Capital to Average Assets, Ratio [Abstract]
Capital Ratio	9.98%	10.68%
Minimum Capital Requirement	4.00%	4.00%
Amount available for dividend distribution without prior approval from regulatory agency	$ 388
Old Point National Bank [Member]
Total Capital to Risk Weighted Assets, Amount [Abstract]
Capital Amount	97,194	$ 98,237
Minimum Capital Requirement	68,803	58,350
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 86,004	$ 72,938
Total Capital to Risk Weighted Assets, Ratio [Abstract]
Capital Ratio	11.30%	13.47%
Minimum Capital Requirement	8.00%	8.00%
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	10.00%	10.00%
Tier 1 Capital to Risk Weighted Assets, Amount [Abstract]
Capital Amount	$ 87,639	$ 89,992
Minimum Capital Requirement	51,602	43,763
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 68,803	$ 58,350
Tier 1 Capital to Risk Weighted Assets, Ratio [Abstract]
Capital Ratio	10.19%	12.34%
Minimum Capital Requirement	6.00%	6.00%
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	8.00%	8.00%
Common Equity Tier 1 Capital to Risk Weighted Assets, Amount [Abstract]
Capital Amount	$ 87,639	$ 89,992
Common Equity Tier One Capital Required for Capital Adequacy	38,702	32,822
Common Equity Tier One Capital Required to be Well Capitalized	$ 55,902	$ 47,410
Common Equity Tier 1 Capital to Risk Weighted Assets, Ratio [Abstract]
Capital Ratio	10.19%	12.34%
Minimum Capital Requirement	4.50%	4.50%
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	6.50%	6.50%
Tier 1 Capital to Average Assets, Amount [Abstract]
Capital Amount	$ 87,639	$ 89,992
Minimum Capital Requirement	38,575	36,549
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 48,218	$ 45,686
Tier 1 Capital to Average Assets, Ratio [Abstract]
Capital Ratio	9.09%	9.85%
Minimum Capital Requirement	4.00%	4.00%
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	5.00%	5.00%