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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statements Of Comprehensive Income [Abstract]
Net income	$ 11,638	$ 11,065	$ 8,784
Available-for-sale investment securities:
Gross unrealized holding loss arising in the period	(590)	(374)	(1,170)
Related tax benefit	124	126	398
Less: reclassification adjustment for gain realized in income	70	119	262
Related tax expense	(15)	(40)	(89)
Net effect on other comprehensive income	(411)	(169)	(599)
Total comprehensive income	$ 11,227	$ 10,896	$ 8,185

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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