CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities
Net income	$ 18,693	$ 19,660
Adjustments to reconcile net income to net cash used in operating activities:
Net amortization of investment securities	411	346
Stock dividends received on correspondent bank stock	(60)	(12)
Provision for loan losses	418	3,987
Net gain on mortgage loans	(13,590)	(24,958)
Origination of mortgage loans held for sale	(1,066,612)	(917,524)
Proceeds from mortgage loans	1,195,896	889,208
Depreciation and amortization	877	832
Provision for other real estate owned		100
Deferred income tax expense/(benefits), net of valuation allowance	210	(1,699)
Increase in cash surrender value of company-owned life insurance	(266)	(273)
Loss on assets held for sale		553
Stock-based compensation	2,050	1,879
Net changes in operating assets and liabilities:
Change in accounts receivable	(21)	492
Change in accrued interest receivable and other assets	(248)	(5,531)
Change in accrued interest payable and other liabilities	(1,311)	3,394
Net cash provided by/(used in) operating activities	136,447	(29,546)
Activity in available-for-sale securities:
Maturities, prepayments, and calls	6,370	20,890
Purchases	(2,250)	(2,000)
Purchases of correspondent bank stock	(1)	(698)
Redemption of correspondent bank stock	841
Contributions to low-income housing tax credit investments	(2,087)
Loan and note receivable originations and principal collections, net	(69,115)	(388,048)
Purchases of premises and equipment	(1,844)	(708)
Proceeds from sale of premises and equipment		10
Proceeds from sale of other real estate owned	194
Net cash paid on acquisitions		(61,316)
Net cash used in investing activities	(67,892)	(431,870)
Cash flows from financing activities
Net change in deposits	162,389	413,808
Payments to Federal Home Loan Bank borrowings		(27,000)
Proceeds from Federal Home Loan Bank borrowings		35,000
Payments to Federal Reserve borrowings	(174,673)	(238)
Proceeds from Federal Reserve borrowings	83,674	204,313
Proceeds from subordinated notes, net of issuance costs	14,674	7,881
Proceeds from the exercise of stock options	79
Repurchase of common stock		(370)
Settlement of restricted stock	(452)	(258)
Net cash provided by financing activities	85,691	633,136
Net change in cash and cash equivalents	154,246	171,720
Cash and cash equivalents, beginning of year	155,989	78,638
Cash and cash equivalents, end of period	310,235	250,358
Supplemental cash flow information:
Interest paid on deposits and borrowed funds	4,167	5,699
Income tax payment, net of refunds received	3,852	6,417
Cash paid for amounts included in the measurement of lease liabilities	3,874	4,267
Supplemental noncash disclosures:
Reclass of held for sale assets, net of liabilities		10
Change in unrealized (loss)/gain on available-for-sale securities	(283)	1,305
Lease right-of-use-asset obtained in exchange for lease liabilities	$ 2,262	$ 649