Description of business.

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Number of branches.

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

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The number of businesses acquired by the entity during the period.

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The cash inflow from Sales of Loans Held For Investment.

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Price of a single share of a number of saleable stocks of a company.

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Number of new stock issued during the period.

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Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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Business Description - Additional Information (Details) $ / shares in Units, $ in Thousands		12 Months Ended	87 Months Ended
	Jul. 31, 2017 $ / shares shares	Dec. 31, 2019 USD ($)	Oct. 15, 2018 Acquisition Branch	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Description Of Business [Line Items]
Total assets		$ 2,788,535		$ 2,974,002
Gross consolidated loans held for investment and held for sale		2,300,000
Total deposits		2,248,938		2,144,041
Total stockholders' Equity		$ 407,690		$ 374,621	$ 265,176	$ 181,585
Number of acquisitions \| Acquisition			5
First American International Bank \| Queens
Description Of Business [Line Items]
Number of branches operated \| Branch			3
First American International Bank \| Manhattan
Description Of Business [Line Items]
Number of branches operated \| Branch			2
First American International Bank \| Brooklyn
Description Of Business [Line Items]
Number of branches operated \| Branch			2
Initial Public Offering
Description Of Business [Line Items]
Number of shares issued in offering \| shares	3,750,000
Share price per share \| $ / shares	$ 23.00