RETIREMENT PLANS (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) person	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Accumulated Benefit Obligation	$ 27,508	$ 25,783
Corporation Common Stock Included in Equity Securities	$ 2,175	$ 1,437
Corporation Common Stock Included in Equity Securities, Percentage of Total Plan Assets	6.00%	4.00%
Percentage of participants average monthly pay used to calculate benefit accruals	0.75%
Maximum years of benefit used to calculate benefit accruals	25 years
Number of active, vested terminated, and retired persons in the Plan | person	358
Employee contribution percentage, maximum	100.00%
Balance accrued included in other liabilities	$ 2,550	$ 2,257
Annual expense included in salaries and benefits expense	383	360	$ 339
Cash surrender value	$ 4,942	4,833
Banking Subsidiary
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Employer Match Percentage of Income	4.00%
Employer Contributions to and Expenses for the Plan	$ 541	547	526
Insurance Subsidiary
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Employer Contributions to and Expenses for the Plan	$ 83	$ 74	$ 63
Non highly compensated employees | Insurance Subsidiary
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Employer Match Percentage of Income	6.00%
Highly Compensated Employees | Insurance Subsidiary
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Employer Match Percentage of Income	3.00%