Goodwill and Other Intangible Assets (Amortization Schedule for Intangible Assets) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Apr. 30, 2018	Nov. 30, 2015
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 19,000	$ 22,000
FNBPA Bancorp, Inc [Member]
Finite-Lived Intangible Assets [Line Items]
Beginning Balance at Acquisition Date						$ 303,000
Amortization of intangible assets	8,000
FNBPA Bancorp, Inc [Member] | Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Beginning Balance at Acquisition Date						$ 303,000
Amortization of intangible assets	8,000		$ 38,000	$ 152,000
Unamortized balance	105,000		113,000
Scheduled remaining amortization expense for years ended:
December 31, 2020	25,000
December 31, 2021	27,000
December 31, 2022	22,000
December 31, 2023	16,000
December 31, 2024	10,000
After December 31, 2024	5,000
Liverpool Community Bank [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	11,000
Liverpool Community Bank [Member] | Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Beginning Balance at Acquisition Date					$ 289,000
Amortization of intangible assets	11,000		49,000	$ 35,000
Unamortized balance	194,000		$ 205,000
Scheduled remaining amortization expense for years ended:
December 31, 2020	33,000
December 31, 2021	39,000
December 31, 2022	33,000
December 31, 2023	28,000
December 31, 2024	23,000
After December 31, 2024	$ 38,000