Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net income	$ 565	$ 2,040
Available-for-sale securities:
Unrealized gains arising during the period	2,830	600
Income tax (expense) related to unrealized (gains)	(1,165)	(247)
Net change in unrealized gains	1,809	242
Held-to-maturity securities:
Accretion of held-to-maturity other comprehensive income to tax-exempt yield	(23)	(23)
Net unrealized change in held-to-maturity securities	(23)	(23)
Derivatives:
Unrealized (losses) gains arising during the period	(55)	86
Reclassification adjustments for net gains realized in earnings (net of tax expense of $62 for both the three months ended March 31, 2014 and 2013)	(88)	(88)
Income tax benefit (expense) related to unrealized losses (gains)	23	(35)
Net unrealized change in derivatives	(120)	(37)
Other comprehensive loss, net of tax	1,666	182
Comprehensive income – Bank of Commerce Holdings	2,231	2,222
Available for Sale Securities [Member]
Available-for-sale securities:
Reclassification adjustments for net loss (gains) realized in earnings (net of tax expense (benefit) of $(101) and $78 for the three months ended March 31, 2014 and 2013, respectively)	$ 144	$ (111)