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Loans and Allowance for Loan Losses - Activity in the Allowance for Credit Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Beginning balance	$ 45,153	$ 21,751	$ 20,945
Impact of CECL Adoption		(379)
Impact of Day 1 PCD - Empire Acquisition		4,099
Charge-off's	(5,134)	(4,005)	(2,778)
Recoveries	2,015	366	773
Provision (benefit)	4,900	22,600	2,800
Provision (benefit)	(4,899)	22,563	2,811
Ending balance	37,135	45,153	21,751
Multi-family Residential Portfolio Segment [Member]
Beginning balance	6,557	5,391	5,676
Impact of CECL Adoption		650
Impact of Day 1 PCD - Empire Acquisition		444
Charge-off's	(43)		(190)
Recoveries	10	38	44
Provision (benefit)	1,661	1,334	(139)
Ending balance	8,185	6,557	5,391
Commercial Real Estate
Beginning balance	8,327	4,429	4,315
Impact of CECL Adoption		(1,170)
Impact of Day 1 PCD - Empire Acquisition		587
Charge-off's	(64)
Recoveries			37
Provision (benefit)	(1,105)	2,141	77
Ending balance	7,158	8,327	4,429
One-To-Four Family - Mixed-Use Property Portfolio Segment [Member]
Beginning balance	1,986	1,817	1,867
Impact of CECL Adoption		55
Impact of Day 1 PCD - Empire Acquisition		183
Charge-off's	(33)	(3)	(89)
Recoveries	133	138	197
Provision (benefit)	(331)	(94)	(158)
Ending balance	1,755	1,986	1,817
One-To-Four Family - Residential Portfolio Segment [Member]
Beginning balance	869	756	749
Impact of CECL Adoption		160
Impact of Day 1 PCD - Empire Acquisition		158
Charge-off's			(113)
Recoveries	157	12	13
Provision (benefit)	(242)	103	107
Ending balance	784	869	756
Construction Portfolio Segment [Member]
Beginning balance	497	441	329
Impact of CECL Adoption		279
Impact of Day 1 PCD - Empire Acquisition		20
Provision (benefit)	(311)	315	112
Ending balance	186	497	441
Small Business Administration Portfolio Segment [Member]
Beginning balance	2,251	363	418
Impact of CECL Adoption		(1,180)
Impact of Day 1 PCD - Empire Acquisition		278
Charge-off's		(178)
Recoveries	34	70	60
Provision (benefit)	(1,076)	538	(115)
Ending balance	1,209	2,251	363
Taxi Medallion Portfolio Segment [Member]
Impact of Day 1 PCD - Empire Acquisition		124
Charge-off's	(2,758)	(1,075)
Recoveries	1,457		134
Provision (benefit)	1,301	951	(134)
Commercial Business and Other Portfolio Segment [Member]
Beginning balance	24,666	8,554	7,591
Impact of CECL Adoption		827
Impact of Day 1 PCD - Empire Acquisition		2,305
Charge-off's	(2,236)	(2,749)	(2,386)
Recoveries	224	108	288
Provision (benefit)	(4,796)	17,275	3,061
Ending balance	$ 17,858	$ 24,666	$ 8,554

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