Debt (Tables)

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Schedule of Short-term Debt

Schedule of Short-Term Borrowings:

	2017		2016
Balances at December 31:
Overnight Advances from the Federal Home Loan Bank of New York	$	105,000	$	123,000
Securities Sold Under Agreements to Repurchase	64,966		35,836
Total Short-Term Borrowings	$	169,966	$	158,836
Maximum Borrowing Capacity at December 31:
Federal Funds Purchased	$	35,000	$	35,000
Federal Home Loan Bank of New York	511,301		445,805
Federal Reserve Bank of New York	424,724		370,136

Schedule of Maturities of Long-term Debt

Maturity Schedule of FHBLNY Term Advances:

	Balances				Weighted Average Rate
Final Maturity	2017		2016		2017		2016
First Year	$	10,000	$	—	1.50	%	—	%
Second Year	20,000		10,000		1.70	%	1.50	%
Third Year	25,000		20,000		2.02	%	1.70	%
Fourth Year	—		25,000		—	%	2.02	%
Fifth Year	—		—		—	%	—	%
Total	$	55,000	$	55,000	1.81	%	1.81	%

Schedule of Long-term Debt Instruments

Schedule of Guaranteed Preferred Beneficial Interests in Corporation's Junior Subordinated Debentures

	2017			2016
ACST II
Balance at December 31,	$	10,000		$	10,000
Period-End Interest Rate	4.49		%	3.99		%
ACST III
Balance at December 31,	$	10,000		$	10,000
Period-End Interest Rate	3.34		%	2.84		%