Business Combination and Pending Acquisition (Narrative) (Details)	1 Months Ended	12 Months Ended
	Dec. 31, 2019 USD ($) item shares	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($) loan	Mar. 17, 2017 USD ($)
Business Acquisition [Line Items]
Acquisition costs				$ 41,000
Number of loans acquired with evidence of credit quality deterioration | loan				0
Goodwill	$ 209,000	$ 209,000	$ 209,000
West Scranton branch of Wayne Bank [Member]
Business Acquisition [Line Items]
Loans					$ 1,574,000
Goodwill					$ 209,000
Goodwill impairment		0	$ 0
MNB Corporation [Member]
Business Acquisition [Line Items]
Acquisition costs		440,000
Consideration	$ 78,500,000
Number of shares issuable per share of acquiree common stock | shares	1.039
Number of branches operated by acquiree | item	9
Estimated non-recurring costs to facilitate merger and integrate		$ 2,400,000