Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 17,624,000	$ 25,335,000
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	2,446,000	153,000
Depreciation and amortization of bank premises and equipment	3,015,000	2,844,000
Amortization of premium, net of accretion of discount	2,831,000	4,463,000
Net loss from fair value adjustments	4,036,000	367,000
Net loss from fair value adjustments on qualifying hedges	1,455,000	0
Net gain from sale of loans	(177,000)	(158,000)
Net loss from sale of securities	15,000	0
Net gain from sale of asset	(770,000)	0
Net gain from sale of OREO	0	(27,000)
Income from bank owned life insurance	(1,550,000)	(1,538,000)
Life insurance proceeds	(43,000)	(776,000)
Stock-based compensation expense	5,246,000	4,680,000
Deferred compensation	(1,634,000)	(1,815,000)
Deferred income tax benefit	(1,390,000)	(415,000)
Increase in other liabilities	172,000	840,000
Decrease in other assets	1,975,000	2,747,000
Net cash provided by operating activities	33,251,000	36,700,000
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of bank premises and equipment	(1,220,000)	(2,666,000)
Net (purchases) redemptions of Federal Home Loan Bank of New York shares	(5,747,000)	2,705,000
Purchases of securities held-to-maturity	(30,030,000)	(353,000)
Proceeds from maturities and calls of securities held-to-maturity	1,568,000	45,000
Proceeds from prepayments of securities held-to-maturity	290,000	0
Purchases of securities available for sale	(72,494,000)	(57,265,000)
Proceeds from sales and calls of securities available for sale	59,493,000	10,000,000
Proceeds from maturities and prepayments of securities available for sale	43,357,000	40,915,000
Proceeds from sale of assets	813,000	0
Proceeds from bank owned life insurance	777,000	2,741,000
Purchase of bank owned life insurance	(25,000,000)	0
Net repayments (originations) of loans	22,741,000	(81,420,000)
Purchases of loans	(115,550,000)	(110,140,000)
Proceeds from sale of real estate owned	0	665,000
Proceeds from sale of loans	3,239,000	10,200,000
Net cash used in investing activities	(117,763,000)	(184,573,000)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in non-interest bearing deposits	66,000	3,198,000
Net (decrease) increase in interest-bearing deposits	(90,398,000)	214,773,000
Net increase in mortgagors' escrow deposits	7,340,000	8,175,000
Net proceeds from short-term borrowed funds	165,750,000	73,500,000
Proceeds from long-term borrowings	14,950,000	25,000,000
Repayment of long-term borrowings	(61,310,000)	(160,084,000)
Purchases of treasury stock	(1,885,000)	(13,889,000)
Proceeds from issuance of common stock upon exercise of stock options	3,000	6,000
Cash dividends paid	(12,081,000)	(11,547,000)
Net cash provided by financing activities	22,435,000	139,132,000
Net decrease in cash and cash equivalents	(62,077,000)	(8,741,000)
Cash and cash equivalents, beginning of period	118,561,000	51,546,000
Cash and cash equivalents, end of period	56,484,000	42,805,000
SUPPLEMENTAL CASH FLOW DISCLOSURE
Interest paid	56,117,000	36,296,000
Income taxes paid	2,776,000	3,103,000
Taxes paid if excess tax benefits were not tax deductible	2,743,000	3,739,000
Non-cash activities:
Loans transferred to Other Real Estate Owned or Other Assets	239,000	673,000
Retained Earnings [Member]
Non-cash activities:
Reclassification of the Income tax effects of Tax Cuts and Jobs Act from AOCI to Retained Earnings	$ 0	$ 2,073,000