CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Available-for-sale debt securities	$ 531,974	$ 467,122
Available-for-sale debt securities, allowance for credit losses	126	0
Held-to-maturity debt securities	59,725	63,156
Held-to-maturity debt securities, allowance for credit losses	171	0
Loans held for investment fair value	$ 827	$ 998
Preferred stock, no par value	$ 0	$ 0
Class A Common Stock
Common Stock, no par value	0	0
Class B Common Stock
Common Stock, no par value	$ 0	$ 0