Consolidated Statements of Changes in Stockholders' Equity Consolidated Statements of Changes in Stockholders' Equity (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Unrealized holding gain on marketable securities-taxes	$ (28)	$ (30)	$ (67)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	$ 333	$ (276)	$ 468
Common Stock, Dividends, Per Share, Cash Paid	$ 0.57	$ 0.53	$ 0
Payments to Acquire Businesses, Gross	$ 37,173	$ 0	$ 16,795

Aggregate dividends paid during the period for each share of common stock outstanding.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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