Consolidated Statements of Income (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Interest and dividend income:
Loans, including fees	$ 8,974,000	$ 9,784,000	$ 17,666,000	$ 18,631,000
Debt securities:
Taxable	2,523,000	2,152,000	4,643,000	4,128,000
Tax-exempt	143,000	42,000	261,000	71,000
Dividends	51,000	87,000	99,000	174,000
Federal funds sold and interest earning deposits	15,000	1,000	19,000	4,000
Total interest and dividend income	11,706,000	12,066,000	22,688,000	23,008,000
Interest expense:
Interest on deposits	1,134,000	1,144,000	2,099,000	2,671,000
Interest on short-term borrowings	24,000	3,000	29,000	6,000
Interest on long-term borrowings	141,000	296,000	274,000	591,000
Interest on subordinated loans	430,000	408,000	842,000	965,000
Total interest expense	1,729,000	1,851,000	3,244,000	4,233,000
Net interest income	9,977,000	10,215,000	19,444,000	18,775,000
Provision for loan losses	59,000	929,000	161,000	1,957,000
Net interest income after provision for loan losses	9,918,000	9,286,000	19,283,000	16,818,000
Noninterest income:
Earnings and gain on bank owned life insurance	123,000	129,000	285,000	254,000
Net losses on sales and redemptions of investment securities	36,000	51,000	30,000	51,000
Gains on marketable equity securities	29,000	49,000	39,000	283,000
Net gains on sales of loans and foreclosed real estate	12,000	39,000	75,000	159,000
Net gains on sale of premises and equipment		0	0	201,000
Insurance agency revenue	292,000	234,000	591,000	514,000
Total noninterest income	1,296,000	1,434,000	2,899,000	3,279,000
Noninterest expense:
Salaries and employee benefits	3,785,000	3,501,000	7,834,000	6,842,000
Building and occupancy	830,000	870,000	1,656,000	1,663,000
Data processing	517,000	654,000	1,067,000	1,330,000
Professional and other services	452,000	451,000	845,000	868,000
Advertising	235,000	259,000	422,000	505,000
FDIC assessments	222,000	232,000	444,000	430,000
Audits and exams	142,000	177,000	283,000	379,000
Insurance agency expense	254,000	194,000	458,000	400,000
Community service activities	73,000	34,000	135,000	122,000
Foreclosed real estate	27,000	16,000	40,000	22,000
Other expenses	609,000	457,000	1,214,000	920,000
Total noninterest expense	7,146,000	6,845,000	14,398,000	13,481,000
Income before income taxes	4,068,000	3,875,000	7,784,000	6,616,000
Provision for income taxes	780,000	851,000	1,501,000	1,400,000
Net income attributable to noncontrolling interest and Pathfinder Bancorp, Inc.	3,288,000	3,024,000	6,283,000	5,216,000
Net income attributable to noncontrolling interest	16,000	15,000	61,000	53,000
Net income attributable to Pathfinder Bancorp Inc.	$ 3,272,000	$ 3,009,000	$ 6,222,000	$ 5,163,000
Dividends per common share (Voting and Series A Non-Voting)	$ 0.09	$ 0.07	$ 0.18	$ 0.14
Voting Common Stock [Member]
Noninterest expense:
Earnings per common share- basic	0.54	0.50	1.03	0.87
Earnings per common share - diluted	0.54	0.50	1.03	0.87
Dividends per common share (Voting and Series A Non-Voting)	411	314	820	626
Series A Non voting [Member]
Noninterest expense:
Earnings per common share- basic	0.54	0.51	1.03	0.87
Earnings per common share - diluted	0.54	0.51	1.03	0.87
Voting and Series A Non-Voting [Member]
Noninterest expense:
Dividends per common share (Voting and Series A Non-Voting)	$ 0.09	$ 0.07	$ 0.18	$ 0.14
Service Charges on Deposit Accounts [Member]
Noninterest income:
Noninterest income	$ 283,000	$ 357,000	$ 542,000	$ 689,000
Loan Servicing Fees [Member]
Noninterest income:
Noninterest income	69,000	11,000	186,000	101,000
Debit Card Interchange Fees [Member]
Noninterest income:
Noninterest income	231,000	241,000	459,000	462,000
Other Charges, Commissions & Fees [Member]
Noninterest income:
Noninterest income	$ 279,000	$ 323,000	$ 692,000	$ 565,000