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Represents the number of families having income producing residential investment properties.

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Represents the loan granted against value of subject property expressed as a percentage.

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Represents the threshold amount of a loan for which the entity generally seeks to obtain annual financial information from the borrower.

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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.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts for loans and leases covered under loss sharing agreements.

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LOANS - Major Classifications of Loans and Lending Risk (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($) family	Dec. 31, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jun. 19, 2015 USD ($)
Classifications of loans
Total loans	$ 3,383,714	$ 3,268,772
Net deferred loan costs and fees	7,390	7,039
Total loans held for investment	3,391,104	3,275,811
Allowance for loan losses	(31,784)	(31,418)	$ (32,812)	$ (31,707)
Loans, net	3,359,320	3,244,393
Commercial Real Estate \| Mortgage loans
Classifications of loans
Total loans	1,402,633	1,373,556
Allowance for loan losses	(11,099)	(10,792)	(11,334)	(11,048)
Lending Risk
Loan amount beyond which annual financial information is sought	1,000
Multi-family \| Mortgage loans
Classifications of loans
Total loans	624,114	585,827
Allowance for loan losses	$ (2,557)	(2,566)	(3,002)	(4,521)
Lending Risk
Number of families having income producing residential investment properties \| family	5
Residential real estate mortgage loans \| Mortgage loans
Classifications of loans
Total loans	$ 515,173	519,763
Allowance for loan losses	(3,374)	(3,935)	(3,495)	(2,438)
Commercial, industrial and agricultural loans
Classifications of loans
Total loans	671,897	645,724
Allowance for loan losses	(13,073)	(12,722)	(14,055)	(12,838)
Real estate construction and land loans
Classifications of loans
Total loans	147,116	123,393
Allowance for loan losses	(1,526)	(1,297)	(821)	(740)
Installment/consumer loans
Classifications of loans
Total loans	22,781	20,509
Allowance for loan losses	(155)	(106)	$ (105)	$ (122)
CNB
Classifications of loans
Addition in acquired loans recorded at fair value					$ 729,400
Fair value of loans acquired	$ 266,100	275,000
Maximum \| Multi-family \| Mortgage loans
Lending Risk
Loan-to-value ratio (as a percent)	75.00%
Home equity \| Residential real estate mortgage loans \| Mortgage loans
Classifications of loans
Total loans	$ 68,624	$ 71,248
Home equity \| Minimum \| Residential real estate mortgage loans \| Mortgage loans
Lending Risk
Loan-to-value ratio (as a percent)	80.00%