INCOME TAXES (Effective Federal and State Tax Rates to Income before Income Tax Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Computed expected tax expense provision, at federal rate	$ 957	$ 22,829	$ 19,887
State tax, net of federal tax benefit	85	2,291	1,696
Tax-exempt interest	(571)	(445)	(312)
Income subject to dividends-received deduction	(219)	(109)	(136)
Meals and entertainment	130
Return to provision and rate changes	145	119	(1,027)
Prior year deferred tax true-up	2,163
Other	(7)	68
Total income tax expense	2,683	24,753	20,108
Parent Company [Member]
Total income tax expense	$ 2,683	$ 24,753	$ 20,108