ALLOWANCE FOR LOAN LOSSES (Details 1) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Allowance for Loan Losses
Beginning balance	$ 31,707	$ 25,904	$ 25,904
Charge-offs	0	(95)
Recoveries	305	9
Provision	800	800
Ending balance	32,812	26,618	31,707
Commercial Real Estate \| Mortgage loans
Allowance for Loan Losses
Beginning balance	11,048	9,225	9,225
Charge-offs	0	0
Recoveries	0	0
Provision	286	(868)
Ending balance	11,334	8,357	11,048
Multi-Family \| Mortgage loans
Allowance for Loan Losses
Beginning balance	4,521	6,264	6,264
Charge-offs	0	0
Recoveries	0	0
Provision	(1,519)	216
Ending balance	3,002	6,480	4,521
Residential Real Estate \| Mortgage loans
Allowance for Loan Losses
Beginning balance	2,438	1,495	1,495
Charge-offs	0	0
Recoveries	1	1
Provision	1,056	(81)
Ending balance	3,495	1,415	2,438
Commercial, Industrial and Agricultural Loans
Allowance for Loan Losses
Beginning balance	12,838	7,837	7,837
Charge-offs	0	(95)
Recoveries	304	7
Provision	913	1,449
Ending balance	14,055	9,198	12,838
Real Estate Construction and Land Loans
Allowance for Loan Losses
Beginning balance	740	955	955
Charge-offs	0	0
Recoveries	0	0
Provision	81	103
Ending balance	821	1,058	740
Installment/Consumer Loans
Allowance for Loan Losses
Beginning balance	122	128	128
Charge-offs	0	0
Recoveries	0	1
Provision	(17)	(19)
Ending balance	$ 105	$ 110	$ 122

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

+ References

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
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-Publisher FASB
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- Definition

Amount of expense related to estimated loss from loan and lease transactions.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
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