Consolidated Statement of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 12,866	$ 12,695
Adjustments to reconcile net income to net cash provided (used) by operating activities:
Amortization and accretion of premiums and discounts on securities, net	779	864
Accretion of loan discounts, net	(1,457)	(506)
Amortization of deposit premiums	(541)	(227)
Amortization of core deposit intangibles	444	184
Accretion of borrowing valuation allowance	(17)
Provision for loan losses	5,364	1,443
Depreciation	1,214	1,062
Net loss (gain) on sale of real estate acquired by foreclosure	81	(139)
Net gain on sale of mortgage loans HFS	(345)
Net gain on sale of guaranteed portion of loans	(2,513)	(2,273)
Originations of loans held for sale	(13,242)
Proceeds from sales of and principal collected on loans held for sale	13,968
Writedown of real estate acquired by foreclosure	530	141
Stock-based compensation expense	570	1,208
Deferred tax benefit	(2,793)
Increase in accrued interest receivable and other assets, net	904	(540)
Increase in accrued interest payable and other liabilities, net	(216)	675
Net cash provided by operating activities	15,596	14,587
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from the maturities or calls and paydowns of available-for-sale securities	35,564	27,889
Purchases of available-for-sale securities	(53,046)	(20,080)
Proceeds from the maturities or calls and paydowns of held-to-maturity securities	7,685	7,306
Purchases of held-to-maturity securities	(1,788)	(3,452)
Proceeds from sale of guaranteed portion of loans	25,599	27,436
Proceeds from sale of real estate acquired by foreclosure	2,587	1,825
Purchases of Federal Home Loan Bank of Dallas stock, net of redemptions	(5,585)	(1,243)
Purchases of Federal Reserve Bank stock	(27)	(2,033)
Net increase in loans held for investment	(204,999)	(172,782)
Investment in construction of premises and purchases of other fixed assets	(780)	(777)
Net cash used in investing activities	(194,790)	(135,911)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net increase in deposit accounts	95,968	130,546
Net increase (decrease) in securities sold under agreements to repurchase	(1,525)	1,808
Net proceeds of other short-term borrowed funds	115,000	(45,000)
Net repayment of other short-term borrowed funds	(3,676)	(1,858)
Proceeds from issuance of common stock due to exercise of stock options	955	76
Proceeds from issuance of common stock, net of issuance expenses		72,542
Net cash provided by (used in) financing activities	206,722	158,114
NET INCREASE IN CASH AND CASH EQUIVALENTS	27,528	36,790
CASH AND CASH EQUIVALENTS:
Beginning of year	68,923	34,757
End of year	96,451	71,547
SUPPLEMENTAL INFORMATION:
Interest paid	6,908	7,330
Income taxes paid	$ 8,100	$ 6,200