Parent Company Financial Information - Balance Sheets Additional Information (Details) - $ / shares	Dec. 31, 2019	Dec. 31, 2018
Condensed Balance Sheet Statements, Captions [Line Items]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	17,790,181	9,985,321
Common stock, shares outstanding	17,790,181	9,985,321
Delmar Bancorp
Condensed Balance Sheet Statements, Captions [Line Items]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	17,790,181	9,985,321
Common stock, shares outstanding	17,790,181	9,985,321