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SECURITIES - Securities Held to Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Amortized cost and estimated fair value of securities held to maturity [Abstract]
Amortized Cost	$ 4,928	$ 4,705
Unrealized Gains	193	207
Unrealized Losses	4	0
Securities held to maturity	5,117	4,912
Amortized Cost [Abstract]
Within one year	1,531
After one, but within five years	3,125
After five, but within ten years	272
After ten years	0
Total	4,928
Fair Value [Abstract]
Within one year	1,538
After one, but within five years	3,266
After five, but within ten years	313
After ten years	0
Total	5,117
Obligations of states and political subdivisions
Amortized cost and estimated fair value of securities held to maturity [Abstract]
Amortized Cost	3,048	3,725
Unrealized Gains	193	206
Unrealized Losses	0	0
Securities held to maturity	3,241	3,931
Time deposits with other financial institutions
Amortized cost and estimated fair value of securities held to maturity [Abstract]
Amortized Cost	1,880	980
Unrealized Gains	0	1
Unrealized Losses	4	0
Securities held to maturity	$ 1,876	$ 981

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Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

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