Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Consolidated Balance Sheets [Abstract]
Held-to-Maturity Securities, Fair Value	$ 5,172	$ 5,552
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	80,000,000	80,000,000
Common stock, shares issued (in shares)	24,900,347	25,422,740
Common stock, shares outstanding (in shares)	24,900,347	25,422,740