Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Net income	$ 7,344	$ 5,259	$ 8,586
Available-for-sale securities :
Unrealized losses arising during the period	(179)	(3,286)	(551)
Unrealized gains from securities transferred from held-to-maturity to available-for-sale	1,208
Income taxes	(423)	1,353	227
Change in unrealized gains (losses), net of tax	606	(1,933)	(324)
Reclassification adjustment for realized (gains) losses included in net income	(137)	(224)	(443)
Income taxes	55	92	184
Realized (gains) losses, net of tax	(82)	(132)	(259)
Reclassification adjustment for other-than-temporary impairment included in net income		546
Income taxes		(225)
Realized impairment, net of tax		321
Net change in unrealized gains (losses) on available-for-sale securities	524	(1,744)	(583)
Held-to-maturity securities :
Accretion of held-to-maturity fair value adjustment from other comprehensive income to interest income	(56)	(97)	(144)
Income taxes	23	40	59
Net accretion of held-to-maturity fair value adjustment from other comprehensive income to interest income	(33)	(57)	(85)
Fair value adjustment for held-to-maturity securities transferred to available-for-sale	(167)
Income taxes	69
Net fair value adjustment for held-to-maturity securities transferred to available-for-sale	(98)
Net change in fair value adjustment on held-to-maturity securities	(131)	(57)	(85)
Derivatives:
Unrealized (losses) arising during the period		(348)	(584)
Income taxes		143	242
Change in unrealized (losses), net of tax		(205)	(342)
Reclassification adjustment for net losses on derivatives included in net income		2,721	1,435
Income taxes		(1,120)	(592)
Reclassification adjustment for net losses on derivatives included in net income, net of tax		1,601	843
Net change in unrealized losses on derivatives		1,396	501
Other comprehensive income (loss)	393	(405)	(167)
Comprehensive income – Bank of Commerce Holdings	$ 7,737	$ 4,854	$ 8,419