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Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($)				12 Months Ended
	Apr. 30, 2018	Nov. 30, 2015	Sep. 08, 2006	Dec. 31, 2019	Dec. 31, 2018	Mar. 31, 2019
Goodwill included in acquisition price				$ 9,047,000	$ 9,139,000
Amortization of intangible assets				87,000	79,000
Other intangible assets				180,000	200,000
Goodwill impairment loss				0	0
Branch Office in Richfield, PA [Member]
Acquisition date			Sep. 08, 2006
Goodwill included in acquisition price			$ 2,046,000
FNBPA Bancorp, Inc [Member]
Acquisition date		Nov. 30, 2015
Goodwill included in acquisition price		$ 3,402,000
Intangible assets included in purchase price		$ 303,000
Liverpool Community Bank [Member]
Acquisition date	Apr. 30, 2018
Goodwill included in acquisition price	$ 3,691,000			$ 3,599,000	$ 3,691,000	$ 3,599,000
Intangible assets included in purchase price	$ 289,000
Intangible assets amortization period	10 years