Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net income from continuing operations	$ 5,727	$ 7,935	$ 7,560
Other comprehensive (loss) income, net of tax	2,305	(3,650)	(487)
Total comprehensive income from continuing operations	8,032	4,285	7,073
Income from discontinued operations			535
Income tax expense from discontinued operations			331
Less: net income from discontinued operations attributable to noncontrolling interest			348
Comprehensive income – Bank of Commerce Holdings	8,032boch_ComprehensiveIncomeNetOfTaxParent	4,285boch_ComprehensiveIncomeNetOfTaxParent	6,929boch_ComprehensiveIncomeNetOfTaxParent
Unrealized gains (losses) arising during the period	(333)	691	(2,489)
Reclassification adjustments for net loss (gains) realized in earnings, net of tax benefit (expense)	(1,118)	(57)	(292)
Income tax (expense) benefit related to unrealized gains (losses)	136	(284)	1,024
Net change in unrealized gains (losses)	(1,315)	350	(1,757)
Available-for-sale Securities [Member]
Unrealized gains (losses) arising during the period	6,129	(5,645)	6,045
Available-for-sale reclassification to held-to-maturity			(494)
Reclassification adjustments for net loss (gains) realized in earnings, net of tax benefit (expense)	105	(587)	(2,249)
Income tax (expense) benefit related to unrealized gains (losses)	(2,523)	2,323	(2,488)
Net change in unrealized gains (losses)	3,711	(3,909)	814
Held-to-maturity Securities [Member]
Available-for-sale reclassification to held-to-maturity			494
Accretion of held-to-maturity other comprehensive income to municipal yield	(91)	(91)	(38)
Net change in unrealized gains (losses)	$ (91)	$ (91)	$ 456

Accretion Of Held To Maturity From Other Comprehensive Income To Interest Income.

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Comprehensive income - bank of commerce holdings.

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Overall income (loss) from a disposal group that is classified as a component of the entity, before income tax, reported as a separate component of income before extraordinary items. Includes the following (before income tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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Tax effect allocated to a disposal group that is classified as a component of the entity reported as a separate component of income before extraordinary items. Includes the tax effects of the following: income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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