SECURITIES: (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Amortized cost and fair value of investments classified as available for sale
TOTAL	$ 793,084	$ 811,369
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	7,046	13,097
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	15,214	9,535
Securities available-for-sale	784,916	814,931
U.S. Government entity mortgage-backed securities
Amortized cost and fair value of investments classified as available for sale
TOTAL	25,617	13,989
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	218	24
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	471	318
Securities available-for-sale	25,364	13,695
Mortgage-backed securities, residential
Amortized cost and fair value of investments classified as available for sale
TOTAL	182,050	215,079
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	723	2,071
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	4,030	1,812
Securities available-for-sale	178,743	215,338
Mortgage-backed securities, commercial
Amortized cost and fair value of investments classified as available for sale
TOTAL	0	1
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	0	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	0
Securities available-for-sale	0	1
Collateralized mortgage obligations
Amortized cost and fair value of investments classified as available for sale
TOTAL	352,823	346,005
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	217	370
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	9,424	6,705
Securities available-for-sale	343,616	339,670
State and municipal obligations
Amortized cost and fair value of investments classified as available for sale
TOTAL	232,457	227,651
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	2,767	4,671
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	1,289	700
Securities available-for-sale	233,935	231,622
Collateralized debt obligations
Amortized cost and fair value of investments classified as available for sale
TOTAL	137	8,644
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	3,121	5,961
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	0
Securities available-for-sale	$ 3,258	$ 14,605

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

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- Definition

Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563

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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ References

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+ References

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- Definition

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+ References

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