Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net Income from continuing operations	$ 7,935	$ 7,560	$ 6,684
Derivatives:
Unrealized gains (losses) arising during the period	691	(2,489)	(938)
Reclassification adjustments for net gains realized in earnings (net of tax expense of $247 and 208 for 2013 and 2012 respectively)	(57)	(292)	0
Income tax (expense) benefit related to unrealized gains (losses)	(284)	1,024	387
Net change in unrealized gains (losses)	350	(1,757)	(551)
Other comprehensive (loss) income, net of tax	(3,650)	(487)	2,254
Total comprehensive income	4,285	7,073	8,938
Income from discontinued operations	0	535	1,512
Income tax expense from discontinued operations	0	331	392
Less: Net income from discontinued operations attributable to noncontrolling interest	0	348	549
Comprehensive income - Bank of Commerce Holdings	4,285	6,929	9,509
Available-for-sale securities [Member]
Available-for-sale securities:
Unrealized (losses) gains arising during the period	(5,645)	6,045	6,130
Available-for-sale reclassification to held-to-maturity (net of tax expenses of $345)	0	(494)	0
Reclassification adjustments for net gains realized in earnings (net of tax expense of $411, $1,573 and $562 for 2013, 2012 and 2011, respectively)	(587)	(2,249)	(804)
Income tax benefit (expense) related to unrealized (losses) gains	2,323	(2,488)	(2,521)
Net change in unrealized (losses) gains	(3,909)	814	2,805
Held-to-maturity securities:
Held-to-maturity reclassification from available-for-sale (net of tax expense of $345)	0	(494)	0
Held-to-maturity securities [Member]
Available-for-sale securities:
Available-for-sale reclassification to held-to-maturity (net of tax expenses of $345)	0	494	0
Held-to-maturity securities:
Held-to-maturity reclassification from available-for-sale (net of tax expense of $345)	0	494	0
Accretion of held-to-maturity other comprehensive income to municipal yield	(91)	(38)	0
Net change in unrealized gains	$ (91)	$ 456	$ 0