Consolidated Statements of Financial Condition (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets
Cash and due from banks	$ 42,805	$ 51,546
Securities held-to-maturity:
Held to maturity securities	31,093	30,886
Securities available for sale, at fair value:
Securities available for sale	728,623	738,354
Loans:
Net unamortized premiums and unearned loan fees	15,647	16,763
Allowance for loan losses	(20,220)	(20,351)
Net loans	5,313,587	5,156,648
Interest and dividends receivable	24,184	21,405
Bank premises and equipment, net	30,658	30,836
Federal Home Loan Bank of New York stock, at cost	57,384	60,089
Bank owned life insurance	131,429	131,856
Goodwill	16,127	16,127
Other assets	91,726	61,527
Total assets	6,467,616	6,299,274
Liabilities
Non-interest bearing	388,467	385,269
Interest-bearing	4,170,411	3,955,403
Mortgagors' escrow deposits	50,781	42,606
Borrowed funds:
Federal Home Loan Bank advances	1,137,318	1,198,968
Subordinated debentures	73,848	73,699
Junior subordinated debentures, at fair value	39,566	36,986
Total borrowed funds	1,250,732	1,309,653
Other liabilities	69,181	73,735
Total liabilities	5,929,572	5,766,666
Stockholders' Equity
Preferred stock ($0.01 par value; 5,000,000 shares authorized; none issued)	0	0
Common stock ($0.01 par value; 100,000,000 shares authorized; 31,530,595 shares issued at June 30, 2018 and December 31, 2017;28,319,213 shares and 28,588,266 shares outstanding at June 30, 2018 and December 31, 2017, respectively)	315	315
Additional paid-in capital	220,432	217,906
Treasury stock, at average cost (3,211,382 shares and 2,942,329 shares at June 30,2018 and December 31, 2017, respectively)	(66,656)	(57,675)
Retained earnings	395,960	381,048
Accumulated other comprehensive loss, net of taxes	(12,007)	(8,986)
Total stockholders' equity	538,044	532,608
Total liabilities and stockholders' equity	6,467,616	6,299,274
Multi-Family Residential [Member]
Loans:
Loans receivable	2,247,852	2,273,595
Commercial Real Estate Portfolio Segment [Member]
Loans:
Loans receivable	1,471,894	1,368,112
One-To-Four Family - Mixed-Use Property Portfolio Segment [Member]
Loans:
Loans receivable	564,474	564,206
One-To-Four Family - Residential Portfolio Segment [Member]
Loans:
Loans receivable	187,741	180,663
Co-Operative Apartments Portfolio Segment [Member]
Loans:
Loans receivable	7,839	6,895
Construction Portfolio Segment [Member]
Loans:
Loans receivable	33,826	8,479
Small Business Administration Portfolio Segment [Member]
Loans:
Loans receivable	14,405	18,479
Taxi Medallion Portfolio Segment [Member]
Loans:
Loans receivable	6,225	6,834
Commercial Business and Other Portfolio Segment [Member]
Loans:
Loans receivable	783,904	732,973
Collateralized Mortgage Backed Securities [Member]
Securities held-to-maturity:
Held to maturity securities	7,963	7,973
Securities available for sale, at fair value:
Securities available for sale	513,868	509,650
Other Debt Obligations [Member]
Securities held-to-maturity:
Held to maturity securities	23,130	22,913
Securities available for sale, at fair value:
Securities available for sale	$ 214,755	$ 228,704