Securities (Narrative) (Details) - USD ($)	9 Months Ended	12 Months Ended
Sep. 30, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities pledged as collateral	$ 88,000,000	$ 86,000,000
Other borrowed funds	51,200,000	10,000,000
FHLBNY stock	3,220,000	1,296,000
Impairment charges	$ 0	0
Percentage of required FRB stock to capital and surplus	6.00%
FRB capital stock, at cost	$ 1,510,000	$ 1,487,000
Investment Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Contractual maturities duration	3 years 10 months 24 days	4 years
Investment In FRB Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Impairment charges	$ 0
FHLBNY [Member] \| Investment In FHLBNY Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Impairment charges	$ 0
Minimum [Member] \| Total Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Contractual maturities duration	10 years

Percentage Of Required Federal Reserve Bank Stock To Capital And Surplus

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- Definition

The fair value of available-for-sale securities that serve as collateral for borrowings.

+ References

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-Topic 310
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Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Section 45
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Federal Reserve Bank stock represents an equity interest in the Federal Reserve Bank. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

+ References

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- Definition

The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

+ References

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The carrying amount as of the balance sheet date for the aggregate of other miscellaneous borrowings owed by the reporting entity.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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