Stockholders' Equity and Regulatory Matters (Schedule of Compliance with Regulatory Capital Requirements) (Details) - The Juniata Valley Bank [Member] $ in Thousands	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital, Amount	$ 68,382
Total Capital, Ratio	13.16
Total Capital, Minimum Requirement for Capital Adequacy Purposes, Amount	$ 54,580
Total Capital, Minimum Requirement for Capital Adequacy Purposes, Ratio	10.50
Total Capital, Minimum Regulatory Requirements to be "Well Capitalized", Amount	$ 51,981
Total Capital, Minimum Regulatory Requirements to be "Well Capitalized", Ratio	10.00
Tier 1 Capital, Amount	$ 64,874
Tier 1 Capital, Ratio	12.48
Tier 1 Capital, Minimum Requirement for Capital Adequacy Purposes, Amount	$ 44,184
Tier 1 Capital, Minimum Requirement for Capital Adequacy Purposes, Ratio	8.50
Tier 1 Capital, Minimum Regulatory Requirements to be "Well Capitalized", Amount	$ 41,585
Tier 1 Capital, Minimum Regulatory Requirements to be "Well Capitalized", Ratio	8.00
Common Equity Tier 1 Capital, Amount	$ 64,874
Common Equity Tier 1 Capital, Ratio	12.48
Common Equity Tier 1 Capital, Minimum Requirement for Capital Adequacy Purposes, Amount	$ 36,387
Common Equity Tier 1 Capital, Minimum Requirement for Capital Adequacy Purposes, Ratio	7.00
Common Equity Tier 1 Capital, Minimum Regulatory Requirements to be "Well Capitalized", Amount	$ 33,788
Common Equity Tier 1 Capital, Minimum Regulatory Requirements to be "Well Capitalized", Ratio	6.50
Tier 1, Leverage Capital to Average Assets, Amount	$ 64,874	$ 63,074
Tier 1, Leverage Capital to Average Assets, Ratio	7.98	8.51
Tier 1, Leverage Capital to Average Assets, Minimum Requirement for Capital Adequacy Purposes, Amount	$ 32,502
Tier 1, Leverage Capital to Average Assets, Minimum Requirement for Capital Adequacy Purposes, Ratio	4.00
Tier 1, Leverage Capital to Average Assets, Minimum Regulatory Requirements to be "Well Capitalized", Amount	$ 40,627	$ 59,284
Tier 1, Leverage Capital to Average Assets, Minimum Regulatory Requirements to be "Well Capitalized", Ratio	5.00	8.00