Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Net income from continuing operations	$ 2,006	$ 2,073	$ 4,046	$ 3,949
Available-for-sale securities:
Unrealized (losses) gains arising during the period	(2,397)	427
Derivatives:
Unrealized (losses) gains arising during the period	1,254	(1,697)	1,342	(1,573)
Reclassification adjustments for net gains realized in earnings (net of tax expense of $62 and $62 for the three months ended June 30, 2013 and 2012, respectively, and net of tax expense of $124 and $82 for the six months ended June 30, 2013 and 2012, respectively)	(88)	(88)	(177)	(117)
Income tax benefit (expense) related to unrealized losses (gains)	(516)	700	(552)	647
Net change in unrealized (losses) gains	650	(1,085)	613	(1,043)
Other comprehensive loss, net of tax	(1,747)	(658)	(1,565)	(295)
Total comprehensive income	259	1,415	2,481	3,654
Income from discontinued operations	0	622	0	1,281
Income tax expense from discontinued operations	0	(271)	0	(570)
Less: Net income from discontinued operations attributable to non-controlling interest	0	172	0	348
Comprehensive income - Bank of Commerce Holdings	259	1,594	2,481	4,017
Available-for-sale Securities
Available-for-sale securities:
Unrealized (losses) gains arising during the period	(3,628)	1,269	(3,028)	2,459
Reclassification adjustments for net gains realized in earnings (net of tax expense of $167 and $224 for the three months ended June 30, 2013 and 2012, respectively, and net of tax expense of $245 and $489 for the six months ended June 30, 2013 and 2012, respectively)	(239)	(320)	(350)	(699)
Income tax benefit (expense) related to unrealized (gains) losses	1,493	(522)	1,246	(1,012)
Net change in unrealized gains (losses)	(2,374)	427	(2,132)	748
Held-to-maturity Securities
Held-to-maturity securities:
Accretion of held-to-maturity other comprehensive income to municipal yield	(23)	0	(46)	0
Net change in unrealized gains	$ (23)	$ 0	$ (46)	$ 0