CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
ASSETS
Securities held to maturity, estimated fair value	$ 3,139	$ 4,858
Shareholders' equity:
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	10,000,000	10,000,000
Common stock, shares issued (in shares)	5,310,076	5,310,076
Treasury stock, at cost (in shares)	452,641	488,844