CORRESPONDENT BANK STOCK - CORRESPONDENT BANK STOCK (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
CORRESPONDENT BANK STOCK
Correspondent bank stock, at cost	$ 2,552	$ 585
FHLB Topeka
CORRESPONDENT BANK STOCK
Correspondent bank stock, at cost	2,522	559
BBW
CORRESPONDENT BANK STOCK
Correspondent bank stock, at cost	$ 30	$ 26