NET DEFERRED TAX ASSET AND INCOME TAXES - Reconciliation of expected federal statutory tax to income tax provision (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income tax at statutory federal tax rate	21.00%	21.00%	34.00%
State tax, net of federal tax benefit	1.58%	1.37%	1.74%
Tax exempt income and dividends received deduction	(3.82%)	(3.84%)	(7.00%)
Remeasurement of net deferred tax assets			4.85%
BOLI interest and gain	(0.61%)	(1.35%)	(1.34%)
Other	(0.67%)	(0.95%)	(0.47%)
Change in valuation allowance
Effective income tax rates	17.48%	16.23%	31.78%