LOANS AND LEASES - Changes in Other Real Estate Owned (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance at beginning of period	$ 1,401	$ 2,781
Additions	504	629
Disposals	(183)	(2,222)
Write-downs	57	123
Balance at end of period	1,665	1,065
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Additions	0	170
Disposals	(22)	(2,104)
Write-downs	0	97
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Additions	504	459
Disposals	(161)	(118)
Write-downs	$ 57	$ 26