Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Interest income:
Interest and fees on loans	$ 7,487	$ 8,462	$ 22,486	$ 25,122
Interest on tax-exempt securities	673	612	1,952	1,777
Interest on U.S. government securities	445	426	1,210	1,225
Interest on other securities	716	841	2,312	2,367
Total interest income	9,321	10,341	27,960	30,491
Interest expense:
Interest on demand deposits	113	147	364	457
Interest on savings deposits	61	90	194	311
Interest on certificates of deposit	639	866	1,990	2,936
Interest on securities sold under repurchase agreements	0	6	6	19
Interest on Federal Home Loan Bank borrowings	(84)	(4)	(163)	99
Interest on other borrowings	96	121	280	315
Total interest expense	825	1,226	2,671	4,137
Net interest income	8,496	9,115	25,289	26,354
Provision for loan losses	300	1,900	2,750	4,850
Net interest income after provision for loan and lease losses	8,196	7,215	22,539	21,504
Noninterest income:
Service charges on deposit accounts	46	49	146	146
Payroll and benefit processing fees	113	122	355	395
Earnings on cash surrender value - Bank owned life insurance	133	114	401	341
Gain on investment securities, net	336	550	931	1,737
Merchant credit card service income, net	33	39	98	112
Other income	313	545	892	1,149
Total noninterest income	974	1,419	2,823	3,880
Noninterest expense:
Salaries and related benefits	2,865	2,732	8,863	8,385
Occupancy and equipment expense	549	508	1,651	1,523
Other real estate owned write down	0	0	0	425
Federal Deposit Insurance Corporation insurance premium	202	202	535	612
Data processing fees	127	94	397	279
Professional service fees	364	255	926	862
Deferred compensation expense	58	150	58	440
Other expenses	1,772	1,543	4,118	4,099
Total noninterest expense	5,937	5,484	16,548	16,625
Income from continuing operations before provision for income taxes	3,233	3,150	8,814	8,759
Provision for income taxes	1,431	923	2,966	2,583
Net Income from continuing operations	1,802	2,227	5,848	6,176
Discontinued Operations:
Income (loss) from discontinued operations	0	(746)	0	535
Income tax expense associated with income (loss) from discontinued operations	0	(239)	0	331
Net income (loss) from discontinued operations	0	(507)	0	204
Less: Net income from discontinued operations attributable to non-controlling interest	0	0	0	348
Net income (loss) from discontinued operations attributable to controlling interest	0	(507)	0	(144)
Net income attributable to Bank of Commerce Holdings	1,802	1,720	5,848	6,032
Less: Preferred dividends and accretion on preferred stock	50	250	150	684
Net Income available to common shareholders	$ 1,752	$ 1,470	$ 5,698	$ 5,348
Basic earnings per share attributable to continuing operations	$ 0.12	$ 0.12	$ 0.37	$ 0.33
Basic earnings (loss) per share attributable to discontinued operations	$ 0.00	$ (0.03)	$ 0.00	$ (0.01)
Average basic shares	14,829	16,240	15,208	16,448
Diluted earnings per share attributable to continuing operations	$ 0.12	$ 0.12	$ 0.37	$ 0.33
Diluted earnings (loss) per share attributable to discontinued operations	$ 0.00	$ (0.03)	$ 0.00	$ (0.01)
Average diluted shares	14,853	16,240	15,230	16,448