Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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-Publisher FASB
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Amount of realized gain from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
-Paragraph 4
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Amount of advances from the Federal Home Loan Bank (FHLB).

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 45
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Securities - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
Securities - Narrative (Details) - USD ($)	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Realized gains on available-for-sale debt securities	$ 133,000	$ 30,000	$ 999,000	$ 327,000
Realized losses on available-for-sale debt securities	0	0	595,000	3,000
Realized gains on equity securities, net	5,000		30,000
Realized losses on equity securities, net		$ 14,000		$ 34,000
Federal Home Loan Bank New York (FHLBNY)
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Holdings of FHLBNY, FHLBPITT and ACBB stock, amount of advances	13,600,000		13,600,000
Federal Home Loan Bank Pittsburgh (FHLBPITT)
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Holdings of FHLBNY, FHLBPITT and ACBB stock, amount of advances	11,200,000		11,200,000
Atlantic Central Bankers Bank (ACBB)
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Holdings of FHLBNY, FHLBPITT and ACBB stock, amount of advances	$ 95,000		$ 95,000