STOCKHOLDERS' EQUITY, CAPITAL AND REGULATORY MATTERS (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2017	Dec. 31, 2018
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Offering price per share (in dollars per share)		$ 24.00
Option period to purchase additional shares		30 days
Offering expenses incurred		$ 470
Cash reserve balance required	$ 1,300
Common equity tier I capital (to average assets), For Capital Adequacy Purposes, Ratio	7.00%		6.38%
Tier I capital to risk-weighted assets, For Capital Purposes, Ratio	8.50%		7.88%
Total capital to risk-weighted assets, For Capital Purposes, Ratio	10.50%		9.88%
Tier I capital to average assets, For Capital Purposes, Ratio	4.00%		4.00%
Dividend payment restriction on minimum capital stock surplus	50.00%
Funds available for payment of dividends	$ 216,500
Amount of equity in net assets of the bank that is restricted	$ 4,400
Public Stock Offering
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Shares sold in offering (in shares)		1,136,363
Net proceeds from public offering after deducting underwriting discounts and commissions		$ 28,000
Over-Allotment Option
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Shares sold in offering (in shares)		113,636