Consolidated Statement of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ (3,516)	$ 12,866
Adjustments to reconcile net income to net cash provided (used) by operating activities:
Amortization and accretion of premiums and discounts on securities, net	610	779
Accretion of loan discounts, net	(6,768)	(1,457)
Amortization of deposit premiums	(1,947)	(541)
Amortization of core deposit intangibles	1,206	444
Accretion of borrowing valuation allowance	184	(17)
Provision for loan losses	55,200	5,364
Depreciation	1,832	1,214
Net loss (gain) on sale of real estate acquired by foreclosure	566	81
Net gain on sale of mortgage loans HFS	(41)	(345)
Net gain on sale of guaranteed portion of loans	(2,964)	(2,513)
Originations of loans held for sale	(1,094)	(13,242)
Proceeds from sales of and principal collected on loans held for sale	7,772	13,968
Writedown of real estate acquired by foreclosure	1,048	530
Stock-based compensation expense	951	570
Deferred tax benefit	(878)	(2,793)
Increase in accrued interest receivable and other assets, net	(16,434)	904
Increase in accrued interest payable and other liabilities, net	4,880	(216)
Net cash provided by operating activities	40,607	15,596
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from the maturities or calls and paydowns of available-for-sale securities	96,108	35,564
Purchases of available-for-sale securities	(100,335)	(53,046)
Proceeds from the maturities or calls and paydowns of held-to-maturity securities	6,306	7,685
Purchases of held-to-maturity securities	(1,963)	(1,788)
Proceeds from sale of guaranteed portion of loans	35,482	25,599
Proceeds from sale of real estate acquired by foreclosure	8,127	2,587
Purchases of Federal Home Loan Bank of Dallas stock, net of redemptions	6,103	(5,585)
Purchases of Federal Reserve Bank stock	(3,738)	(27)
Net increase in loans held for investment	(40,542)	(204,999)
Investment in construction of premises and purchases of other fixed assets	(260)	(780)
Net cash used in investing activities	5,288	(194,790)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net increase in deposit accounts	217,098	95,968
Net increase (decrease) in securities sold under agreements to repurchase	(218)	(1,525)
Net proceeds of other short-term borrowed funds	(64,250)	115,000
Proceeds from other long-term borrowed funds	50,000
Net repayment of other short-term borrowed funds	(58,884)	(3,676)
Proceeds from issuance of common stock due to exercise of stock options	72	955
Purchase of treasury stock	(1,253)
Net cash provided by (used in) financing activities	142,565	206,722
NET INCREASE IN CASH AND CASH EQUIVALENTS	188,460	27,528
CASH AND CASH EQUIVALENTS:
Beginning of year	124,906	68,923
End of year	313,366	96,451
NONCASH ACTIVITIES:
Noncash investing and financing activities - acquisition of real estate through foreclosure of collateral	420
Transfer of loans to held-for-sale	45,187
SUPPLEMENTAL INFORMATION:
Interest paid	17,379	6,908
Income taxes paid	$ 11,700	$ 8,100