Income Taxes - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($)
Income Tax Contingency [Line Items]
Operating Loss Carryforwards	$ 8.2
Desert Commercial Bank
Income Tax Contingency [Line Items]
Operating Loss Carryforwards	$ 13.4
Operating Loss Carryforwards Utilization Period	20 years
Operating Loss Carryforwards, Expiration Date, Year	2032
Operating Loss Carryforwards, Limitations on Use	operating loss carryforwards are subject to limitation under Section 382 of the Internal Revenue Service Code and expire in 2032
Pacific Rim Bank
Income Tax Contingency [Line Items]
Operating Loss Carryforwards	$ 3.9
Operating Loss Carryforwards Utilization Period	20 years
Operating Loss Carryforwards, Expiration Date, Year	2035
Operating Loss Carryforwards, Limitations on Use	operating loss carryforwards are subject to limitation under Section 382 of the Internal Revenue Service Code and expire in 2035
Desert Commercial Bank And Pacific Rim Bank
Income Tax Contingency [Line Items]
Operating Loss Carryforwards	$ 9.6