Fair value portion of consumer loans held-for-sale.

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Represents information pertaining to consumer loans held for sale period within origination.

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The amount of the transfer of assets or liabilities done, measured on a recurring basis into or out of Level 1 of the fair value hierarchy, into Level 2 or Level 3.

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Mandatory Forward Contracts, Fair Value Disclosure.

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Represents information pertaining to the disclosure of mandatory forward contracts under fair value liabilities.

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Number of tranches carried at fair value.

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Rate Lock Loan Commitments, Fair Value Disclosure.

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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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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Fair value portion of mortgage loans held-for-sale.

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FAIR VALUE - RECURRING BASIS (Details) $ in Thousands	3 Months Ended		12 Months Ended
FAIR VALUE - RECURRING BASIS (Details) $ in Thousands	Mar. 31, 2017 USD ($) item	Mar. 31, 2016 USD ($)	Dec. 31, 2016 USD ($) item	Dec. 31, 2015 USD ($)	Dec. 31, 2008 USD ($)
Financial assets:
Securities available for sale	$ 526,270		$ 481,275
Mortgage loans held for sale, at fair value	5,193	$ 7,148	11,662	$ 4,083
Consumer loans held for sale	$ 3,679	$ 415	$ 2,198
Mortgage Servicing Rights
Assets and Liabilities Measured on Recurring Basis
Number of tranches carried at fair value \| item	0		0
Installment loan
Financial Liabilities:
Consumer loans held for sale period		21 days	21 days
U.S. Treasury securities and U.S. Government agencies
Financial assets:
Securities available for sale	$ 319,525		$ 294,544
Private label mortgage backed security
Financial assets:
Securities available for sale	4,682		4,777
Mortgage backed securities - residential
Financial assets:
Securities available for sale	97,822		73,004
Collateralized mortgage obligations
Financial assets:
Securities available for sale	82,931		87,654
Freddie Mac preferred stock
Financial assets:
Securities available for sale	394		483		$ 0
Community Reinvestment Act mutual fund
Financial assets:
Securities available for sale	2,458		2,455
Corporate bonds
Financial assets:
Securities available for sale	15,258		15,158
Trust preferred security
Financial assets:
Securities available for sale	3,200		3,200
Fair Value, Inputs, Level 1
Financial assets:
Securities available for sale	2,458		2,455
Fair Value, Inputs, Level 2
Financial assets:
Securities available for sale	515,930		470,843
Mortgage loans held for sale, at fair value	5,193		11,662
Fair Value, Inputs, Level 3
Financial assets:
Securities available for sale	7,882		7,977
Consumer loans held for sale	3,679		2,198
Recurring basis
Financial assets:
Securities available for sale	526,270		481,275
Mortgage loans held for sale, at fair value	5,193		11,662
Consumer loans held for sale	3,679		2,198
Rate lock loan commitments	618		299
Mandatory forward contracts			204
Interest rate swap agreements	137		305
Financial Liabilities:
Mandatory forward contracts	71
Interest rate swap agreements	436		597
Transfers between Level 1, 2 or 3	0	$ 0
Recurring basis \| U.S. Treasury securities and U.S. Government agencies
Financial assets:
Securities available for sale	319,525		294,544
Recurring basis \| Private label mortgage backed security
Financial assets:
Securities available for sale	4,682		4,777
Recurring basis \| Mortgage backed securities - residential
Financial assets:
Securities available for sale	97,822		73,004
Recurring basis \| Collateralized mortgage obligations
Financial assets:
Securities available for sale	82,931		87,654
Recurring basis \| Freddie Mac preferred stock
Financial assets:
Securities available for sale	394		483
Recurring basis \| Community Reinvestment Act mutual fund
Financial assets:
Securities available for sale	2,458		2,455
Recurring basis \| Corporate bonds
Financial assets:
Securities available for sale	15,258		15,158
Recurring basis \| Trust preferred security
Financial assets:
Securities available for sale	3,200		3,200
Recurring basis \| Fair Value, Inputs, Level 1
Financial assets:
Securities available for sale	2,458		2,455
Recurring basis \| Fair Value, Inputs, Level 1 \| Community Reinvestment Act mutual fund
Financial assets:
Securities available for sale	2,458		2,455
Recurring basis \| Fair Value, Inputs, Level 2
Financial assets:
Securities available for sale	515,930		470,843
Mortgage loans held for sale, at fair value	5,193		11,662
Rate lock loan commitments	618		299
Mandatory forward contracts			204
Interest rate swap agreements	137		305
Financial Liabilities:
Mandatory forward contracts	71
Interest rate swap agreements	436		597
Recurring basis \| Fair Value, Inputs, Level 2 \| U.S. Treasury securities and U.S. Government agencies
Financial assets:
Securities available for sale	319,525		294,544
Recurring basis \| Fair Value, Inputs, Level 2 \| Mortgage backed securities - residential
Financial assets:
Securities available for sale	97,822		73,004
Recurring basis \| Fair Value, Inputs, Level 2 \| Collateralized mortgage obligations
Financial assets:
Securities available for sale	82,931		87,654
Recurring basis \| Fair Value, Inputs, Level 2 \| Freddie Mac preferred stock
Financial assets:
Securities available for sale	394		483
Recurring basis \| Fair Value, Inputs, Level 2 \| Corporate bonds
Financial assets:
Securities available for sale	15,258		15,158
Recurring basis \| Fair Value, Inputs, Level 3
Financial assets:
Securities available for sale	7,882		7,977
Consumer loans held for sale	3,679		2,198
Recurring basis \| Fair Value, Inputs, Level 3 \| Private label mortgage backed security
Financial assets:
Securities available for sale	4,682		4,777
Recurring basis \| Fair Value, Inputs, Level 3 \| Trust preferred security
Financial assets:
Securities available for sale	$ 3,200		$ 3,200