The amount of total capital as defined in the regulations.

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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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The Business of Sierra Bancorp (Narrative) (Details) $ in Thousands		3 Months Ended
	May 18, 2018 Branch	Mar. 31, 2019 USD ($) Bank Branch	Dec. 31, 2018 USD ($)
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Capital		$ 1,500
Number of acquired banks \| Bank		4
Number of full service branch offices \| Branch		40
Assets		$ 2,539,087	$ 2,522,502
Cash, FDIC Insured Amount		$ 2,200,000
Community Bank of Santa Maria [Member] \| California [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of acquired branches \| Branch	1