CONSOLIDATED STATEMENT OF INCOME - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
INTEREST AND DIVIDEND INCOME:
Loans, including fees	$ 58,682,000	$ 53,232,000	$ 57,217,000
Investment securities:
Taxable	3,634,000	3,281,000	3,778,000
Tax-exempt	823,000	655,000	650,000
Dividend and other interest income	1,789,000	1,246,000	993,000
TOTAL INTEREST AND DIVIDEND INCOME	64,928,000	58,414,000	62,638,000
INTEREST EXPENSE:
Deposits	3,690,000	5,545,000	10,565,000
Short-term borrowings	1,007,000	9,000	43,000
Long-term borrowings	2,451,000	3,142,000	3,807,000
TOTAL INTEREST EXPENSE	7,148,000	8,696,000	14,415,000
NET INTEREST INCOME	57,780,000	49,718,000	48,223,000
PROVISION FOR LOAN LOSSES	1,910,000	640,000	2,625,000
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	55,870,000	49,078,000	45,598,000
NON-INTEREST INCOME:
Net debt securities (losses) gains, available for sale	(219,000)	699,000	1,592,000
Net equity securities (losses) gains	(146,000)	(40,000)	16,000
Bank-owned life insurance	664,000	916,000	653,000
Gain on sale of loans	1,131,000	2,474,000	4,148,000
Other	931,000	838,000	730,000
TOTAL NON-INTEREST INCOME	8,713,000	11,669,000	12,168,000
NON-INTEREST EXPENSE:
Salaries and employee benefits	24,267,000	23,014,000	21,632,000
Occupancy	3,080,000	3,209,000	2,650,000
Furniture and equipment	3,288,000	3,522,000	3,411,000
Software amortization	840,000	868,000	978,000
Pennsylvania shares tax	1,452,000	1,350,000	1,289,000
Professional fees	2,434,000	2,432,000	2,362,000
Federal Deposit Insurance Corporation deposit insurance	938,000	963,000	939,000
Marketing	690,000	545,000	261,000
Intangible amortization	154,000	191,000	227,000
Goodwill impairment	653,000	0	0
Other	5,202,000	4,811,000	5,319,000
TOTAL NON-INTEREST EXPENSE	42,998,000	40,905,000	39,068,000
INCOME BEFORE INCOME TAX PROVISION	21,585,000	19,842,000	18,698,000
INCOME TAX PROVISION	4,163,000	3,794,000	3,474,000
CONSOLIDATED NET INCOME	17,422,000	16,048,000	15,224,000
Earnings attributable to noncontrolling interest	0	15,000	18,000
NET INCOME ATTRIBUTABLE TO PENNS WOODS BANCORP, INC.	$ 17,422,000	$ 16,033,000	$ 15,206,000
EARNINGS PER SHARE - BASIC (in dollars per share)	$ 2.47	$ 2.27	$ 2.16
EARNINGS PER SHARE - DILUTED (in dollars per share)	$ 2.47	$ 2.27	$ 2.16
WEIGHTED AVERAGE SHARES OUTSTANDING - BASIC (in shares)	7,059,437	7,061,818	7,044,542
WEIGHTED AVERAGE SHARES OUTSTANDING - DILUTED (in shares)	7,059,437	7,061,818	7,044,542
Service charges
NON-INTEREST INCOME:
Service charges, insurance commissions, brokerage commissions, and debit card income	$ 2,103,000	$ 1,703,000	$ 1,690,000
Insurance commissions
NON-INTEREST INCOME:
Service charges, insurance commissions, brokerage commissions, and debit card income	491,000	553,000	416,000
Brokerage commissions
NON-INTEREST INCOME:
Service charges, insurance commissions, brokerage commissions, and debit card income	620,000	851,000	970,000
Loan broker income
NON-INTEREST INCOME:
Service charges, insurance commissions, brokerage commissions, and debit card income	1,674,000	2,164,000	673,000
Debit card income
NON-INTEREST INCOME:
Service charges, insurance commissions, brokerage commissions, and debit card income	$ 1,464,000	$ 1,511,000	$ 1,280,000