Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net income from continuing operations	$ 1,802	$ 2,227	$ 5,848	$ 6,176
Derivatives:
Unrealized (losses) gains arising during the period	(102)	(923)	1,240	(2,496)
Reclassification adjustments for net gains realized in earnings (net of tax expense of $62 and $62 for the three months ended September 30, 2013 and 2012, respectively, and net of tax expense of $185 and $143 for the nine months ended September 30, 2013 and 2012, respectively)	(88)	(88)	(265)	(205)
Income tax benefit (expense) related to unrealized losses (gains)	42	380	(510)	1,027
Net unrealized change in derivatives	(148)	(631)	465	(1,674)
Other comprehensive loss, net of tax	(2,260)	872	(3,825)	(577)
Total comprehensive (loss) income	(458)	3,099	2,023	6,753
(loss) income from discontinued operations	0	(746)	0	535
Income tax (benefit) expense from discontinued operations	0	(239)	0	331
Less: Net income from discontinued operations attributable to non-controlling interest	0	0	0	348
Comprehensive (loss) income - Bank of Commerce Holdings	(458)	2,592	2,023	6,609
Available-for-sale securities [Member]
Available-for-sale securities:
Unrealized (losses) gains arising during the period	(3,217)	3,129	(6,245)	5,588
Available-for-sale reclassification to held-to maturity (net of tax expense of $345 for the three and nine months ended September 30, 2012)	0	(494)	0	(494)
Reclassification adjustments for net gains realized in earnings (net of tax expense of $138 and $226 for the three months ended September 30, 2013 and 2012, respectively, and net of tax expense of $383 and $715 for the nine months ended September 30, 2013 and 2012, respectively)	(197)	(323)	(547)	(1,022)
Income tax benefit (expense) related to unrealized (gains) losses	1,324	(1,288)	2,570	(2,300)
Net unrealized change in available-for-sale securities	(2,090)	1,024	(4,222)	1,772
Held-to-maturity securities:
Held-to-maturity reclassification from available-for-sale (net of tax expense of $345 for three and nine months ended September 30, 2012)	0	(494)	0	(494)
Held-to-maturity securities [Member]
Available-for-sale securities:
Available-for-sale reclassification to held-to maturity (net of tax expense of $345 for the three and nine months ended September 30, 2012)	0	494	0	494
Held-to-maturity securities:
Held-to-maturity reclassification from available-for-sale (net of tax expense of $345 for three and nine months ended September 30, 2012)	0	494	0	494
Accretion of held-to-maturity other comprehensive income to municipal yield	(22)	(15)	(68)	(15)
Net change in held-to-maturity securities	$ (22)	$ 479	$ (68)	$ 479