INCOME TAXES - NARRATIVE (Details) - USD ($)		12 Months Ended
	Dec. 22, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income taxes
Corporate income tax rate		21.00%	21.00%	35.00%
Income tax expense as result of reduced tax rate	$ 6,300,000
Federal tax benefits which reduced the effective tax rate lower than the federal corporate tax rate		$ 2,800,000	$ 2,800,000
Traditional Banking
Income taxes
Percentage of income tax benefit attributed to segment		100.00%
Deferred tax asset due to enactment of HB354		$ 224,000
Reversal of valuation allowance on the deferred tax asset for losses		840,000
Income tax benefit associated with equity compensation		480,000
Tax benefits for low-income-housing investments and R&D		$ 1,300,000
Kentucky
Income taxes
Corporate income tax rate		5.00%