Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Stock Issued During Period, Shares, New Issues	0	0	787,547
Activity in employee compensation plans (shares)	1,387,793	1,175,466	598,269
Unrealized loss on securities, tax	$ 0	$ (181)	$ 39
Reclassification Adjustment from AOCI for Write-down of Securities, Tax	$ (47)	$ 0	$ 0

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