INVESTMENT SECURITIES, AMORTIZED COST AND FAIR VALUE (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Investment Securities Available-for-Sale:
Amortized Cost	$ 377,267	$ 283,661
Unrealized Gains	2,739	3,710
Unrealized Losses	2,028	2,006
Fair Value	377,978	285,365
Investment Securities Held-to-Maturity:
Amortized Cost	22,633	22,725
Unrealized Gains	95	108
Unrealized Losses	98	695
Fair Value	22,630	22,138
U.S. Treasury notes
Investment Securities Available-for-Sale:
Amortized Cost	72,672	62,406
Unrealized Gains	309	290
Unrealized Losses	135	136
Fair Value	72,846	62,560
U.S. Agency notes
Investment Securities Available-for-Sale:
Amortized Cost	140,876	84,661
Unrealized Gains	164	188
Unrealized Losses	1,151	1,212
Fair Value	139,889	83,637
U.S. Agency mortgage-backed securities
Investment Securities Available-for-Sale:
Amortized Cost	29,608	37,838
Unrealized Gains	174	413
Unrealized Losses	404	219
Fair Value	29,378	38,032
Investment Securities Held-to-Maturity:
Fair Value	0
Certificates of deposit
Investment Securities Available-for-Sale:
Amortized Cost	248	3,076
Unrealized Gains	1	10
Unrealized Losses	0	0
Fair Value	249	3,086
Nontaxable municipal securities
Investment Securities Available-for-Sale:
Amortized Cost	103,900	75,727
Unrealized Gains	1,713	1,972
Unrealized Losses	134	304
Fair Value	105,479	77,395
Investment Securities Held-to-Maturity:
Amortized Cost	22,233	22,525
Unrealized Gains	95	108
Unrealized Losses	97	695
Fair Value	22,231	21,938
Taxable municipal securities
Investment Securities Available-for-Sale:
Amortized Cost	26,738	16,005
Unrealized Gains	337	465
Unrealized Losses	134	75
Fair Value	26,941	16,395
Investment Securities Held-to-Maturity:
Amortized Cost	400	200
Unrealized Gains	0	0
Unrealized Losses	1	0
Fair Value	399	200
Mutual funds
Investment Securities Available-for-Sale:
Amortized Cost	2,517	2,483
Unrealized Gains	0	0
Unrealized Losses	51	22
Fair Value	2,466	2,461
Investment Securities Held-to-Maturity:
Fair Value	0
Trust preferred securities
Investment Securities Available-for-Sale:
Amortized Cost	49	50
Unrealized Gains	1	0
Unrealized Losses	0	0
Fair Value	50	50
Investment Securities Held-to-Maturity:
Fair Value	0
Equity securities
Investment Securities Available-for-Sale:
Amortized Cost	659	1,415
Unrealized Gains	40	372
Unrealized Losses	19	38
Fair Value	680	$ 1,749
Investment Securities Held-to-Maturity:
Fair Value	$ 0

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

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