Cover - USD ($)	12 Months Ended
	Dec. 31, 2018	Jul. 18, 2022	Jul. 09, 2022
Cover [Abstract]
Entity Registrant Name	UNITED BANCSHARES INC /PA
Entity Central Index Key	0000944792
Document Type	10-K
Amendment Flag	false
Entity Voluntary Filers	No
Current Fiscal Year End Date	--12-31
Entity Well Known Seasoned Issuer	No
Entity Small Business	true
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Current Reporting Status	No
Document Period End Date	Dec. 31, 2018
Entity Filer Category	Non-accelerated Filer
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2018
Entity Common Stock Shares Outstanding		843,050
Entity Public Float			$ 0
Document Annual Report	true
Document Transition Report	false
Entity File Number	0-25976
Entity Incorporation State Country Code	PA
Entity Tax Identification Number	23-2802415
Entity Address Address Line 1	The Graham Building
Entity Address Address Line 2	30 South 15th Street
Entity Address Address Line 3	Suite 1200
Entity Address City Or Town	Philadelphia
Entity Address State Or Province	PA
Entity Address Postal Zip Code	19102
City Area Code	215
Local Phone Number	351-4600
Entity Interactive Data Current	No
Auditor Name	S.R. Snodgrass, P.C.
Auditor Location	Cranberry Township, Pennsylvania