Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Interest income:
Interest and fees on loans	$ 8,867	$ 9,033
Interest on tax-exempt securities	580	532
Interest on U.S. government securities	391	678
Interest on other securities	732	651
Total interest income	10,570	10,894
Interest expense:
Interest on demand deposits	157	226
Interest on savings deposits	116	246
Interest on certificates of deposit	1,065	1,313
Interest on securities sold under repurchase agreements	6	14
Interest on Federal Home Loan Bank borrowings	150	164
Interest on other borrowings	611	266
Total interest expense	2,105	2,229
Net interest income	8,465	8,665
Provision for loan losses	1,300	2,400
Net interest income after provision for loan and lease losses	7,165	6,265
Noninterest income:
Service charges on deposit accounts	47	50
Payroll and benefit processing fees	155	128
Earnings on cash surrender value - Bank owned life insurance	113	111
Gain on investment securities, net	645	258
Merchant credit card service income, net	35	270
Mortgage banking revenue, net	4,932	2,533
Other income	125	102
Total noninterest income	6,052	3,452
Noninterest expense:
Salaries and related benefits	5,982	4,214
Occupancy and equipment expense	862	728
Write down of other real estate owned		187
Federal Deposit Insurance Corporation insurance premium	212	372
Data processing fees	70	99
Professional service fees	663	574
Deferred compensation expense	144	127
Stationery and supplies	73	51
Postage	38	46
Directors' expenses	72	74
Other expenses	1,763	1,174
Total noninterest expense	9,879	7,646
Income before provision for income taxes	3,338	2,071
Provision for income taxes	1,102	431
Net Income	2,236	1,640
Less: Net income (loss) attributable to noncontrolling interest	176	(24)
Net income attributable to Bank of Commerce Holdings	2,060	1,664
Less: Preferred dividend and accretion on preferred stock	186	235
Income available to common shareholders	$ 1,874	$ 1,429
Basic earnings per share	$ 0.11	$ 0.08
Weighted average shares - basic	16,805	16,991
Diluted earnings per share	$ 0.11	$ 0.08
Weighted average shares - diluted	16,805	16,991