Mergers - Summary of Estimated Fair Value of Assets Acquired and Liabilities Assumed (Details) - USD ($)	Jun. 30, 2019	Apr. 17, 2019	Dec. 31, 2018
Assets
Goodwill	$ 31,206,000		$ 412,000
Optima Bank And Trust Company
Assets
Cash and cash equivalents		$ 6,902,000
Investments		23,298,000
Loans		475,406,000
Premises and equipment		6,286,000
Goodwill	$ 30,800,000	30,794,000
Core deposit and other intangibles		3,609,000
Other assets		9,408,000
Total assets acquired		555,703,000
Liabilities
Deposits		477,189,000
Borrowings		13,459,000
Other liabilities		799,000
Total liabilities assumed		491,447,000
Purchase price		$ 64,256,000