EQUITY INVESTMENTS - Equity Investments (Details) - USD ($) $ / shares in Units, $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Equity investments
Equity investments, total	$ 18,369	$ 16,710
Unfunded commitments	4,600	4,900
Federal Reserve stock
Equity investments
Equity investments, total	$ 9,271	9,271
Par value (in dollars per share)	$ 100
Federal Home Loan Bank stock
Equity investments
Equity investments, total	$ 5,921	4,249
Par value (in dollars per share)	$ 100
The Independent Bankers Financial Corporation stock
Equity investments
Equity investments, total	$ 141	141
Community Reinvestment Act investments
Equity investments
Equity investments, total	$ 3,036	$ 3,049