Regulatory and Operational Matters (Tables)

12 Months Ended

Dec. 31, 2025

Regulatory Capital Requirements under Banking Regulations [Abstract]

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations

The Company and Bank’s regulatory capital amounts and ratios at December 31, 2025 and 2024 are summarized as follows:

	December 31, 2025								December 31, 2024
	Patriot National Bancorp, Inc.				Patriot Bank, N.A.				Patriot National Bancorp, Inc.				Patriot Bank, N.A.
(Dollar amounts in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio		Amount		Ratio
Total Capital (to risk weighted assets):
Actual	$	129,587	20.76	%	$	120,329	19.25	%	$	44,534	6.07	%	$	56,536	7.71	%
To be Well Capitalized(a)	—		—		62,516		10.00	%	—		—		73,309		10.00	%
For capital adequacy	49,934		8.00	%	50,013		8.00	%	58,667		8.00	%	58,648		8.00	%
Individual minimum capital ratio	—		—		71,894		11.50	%	—		—		84,306		11.50	%
Tier 1 Capital (to risk weighted assets):
Actual	117,567		18.84	%	116,657		18.66	%	33,545		4.57	%	55,546		7.58	%
To be Well Capitalized(a)	—		—		50,013		8.00	%	—		—		58,648		8.00	%
For capital adequacy	37,450		6.00	%	37,510		6.00	%	44,001		6.00	%	43,986		6.00	%
Individual minimum capital ratio	—		—		62,516		10.00	%	—		—		73,309		10.00	%
Common Equity Tier 1 Capital (to risk weighted assets):
Actual	109,567		17.55	%	116,657		18.66	%	25,545		3.48	%	55,546		7.58	%
To be Well Capitalized(a)	—		—		40,636		6.50	%	—		—		47,651		6.50	%
For capital adequacy	28,088		4.50	%	28,132		4.50	%	33,000		4.50	%	32,989		4.50	%
Individual minimum capital ratio	—		—		62,516		10.00	%	—		—		73,309		10.00	%
Tier 1 Leverage Capital (to average assets):
Actual	117,567		11.52	%	116,657		11.42	%	33,545		3.50	%	55,546		5.79	%
To be Well Capitalized(a)	—		—		51,097		5.00	%	—		—		47,948		5.00	%
For capital adequacy	40,835		4.00	%	40,878		4.00	%	38,368		4.00	%	38,358		4.00	%
Individual minimum capital ratio	—		—		91,975		9.00	%	—		—		86,306		9.00	%

(a) Designation as "Well Capitalized" does not apply to bank holding companies - the Company. Such categorization of capital adequacy only applies to insured depository institutions - the Bank. Under the terms of the Formal Agreement, the Bank is not eligible to be “Well Capitalized” while the Formal Agreement continues in effect and is designated as “Adequately Capitalized” regardless of its capital ratios being in excess of the regulatory defined Well Capitalized ratios.