Preferred Stock	6 Months Ended
	Jun. 30, 2022
Text Block [Abstract]
Preferred Stock	PREFERRED STOCKIn April 2021, we sold through a private placement 1,500 shares or $15.0 million of Series 2021 6% Fixed-Rate Non-Cumulative Perpetual Preferred Stock, $1.00 par value, with a liquidation preference of $10,000 per share (the “Preferred Stock”). The Preferred Stock is non-convertible and will pay noncumulative dividends, if and when declared by the Summit board of directors, at a rate of 6.0% per annum. Dividends declared will be payable quarterly in arrears on the 15th day of March, June, September and December of each year.