PARENT COMPANY ONLY FINANCIAL STATEMENTS - Condensed Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Investment in subsidiaries:
Other assets	$ 9,193	$ 4,441
Increase in assets as a result of adoption of new accounting guidance	1,940,809	1,834,643
LIABILITIES AND SHAREHOLDERS’ EQUITY:
Other liabilities	11,961	13,048
Shareholders’ equity	172,274	164,142
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	1,940,809	1,834,643
Penns Woods Bancorp, Inc
ASSETS:
Cash	680	1,397
Investment in subsidiaries:
Bank	168,808	160,273
Non-bank	1,620	1,558
Other assets	1,247	1,030
Increase in assets as a result of adoption of new accounting guidance	172,355	164,258
LIABILITIES AND SHAREHOLDERS’ EQUITY:
Other liabilities	81	116
Shareholders’ equity	172,274	164,142
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 172,355	$ 164,258