CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
ASSETS
Cash and due from banks	$ 156,679	$ 142,408
Short-term investments	19,501	24,872
Total cash and cash equivalents	176,180	167,280
Securities available for sale (carried at fair value)	538,493	504,191
Real estate mortgage loans held for sale	3,346	5,915
Loans, net of allowance for loan losses of $47,121 and $43,718	3,771,338	3,427,209
Land, premises and equipment, net	56,466	52,092
Bank owned life insurance	75,879	74,006
Federal Reserve and Federal Home Loan Bank Stock	13,772	11,522
Accrued interest receivable	14,093	11,687
Goodwill	4,970	4,970
Other assets	28,439	31,153
Total assets	4,682,976	4,290,025
LIABILITIES
Noninterest bearing deposits	885,622	819,803
Interest bearing deposits	3,123,033	2,758,109
Total deposits	4,008,655	3,577,912
Borrowings
Securities sold under agreements to repurchase	70,652	50,045
Federal Home Loan Bank advances	80,030	180,032
Subordinated debentures	30,928	30,928
Total borrowings	181,610	261,005
Accrued interest payable	6,311	5,676
Other liabilities	17,733	18,365
Total liabilities	4,214,309	3,862,958
Commitments, off-balance sheet risks and contingencies (Notes 1 and 18)
STOCKHOLDERS' EQUITY
Common stock: 90,000,000 shares authorized, no par value 25,194,903 shares issued and 25,025,933 outstanding as of December 31, 2017 25,096,087 shares issued and 24,937,865 outstanding as of December 31, 2016	108,862	104,405
Retained earnings	363,794	327,873
Accumulated other comprehensive income (loss)	(670)	(2,387)
Treasury stock, at cost (2017 - 168,970 shares, 2016 - 158,222 shares)	(3,408)	(2,913)
Total stockholders' equity	468,578	426,978
Noncontrolling interest	89	89
Total equity	468,667	427,067
Total liabilities and stockholders' equity	$ 4,682,976	$ 4,290,025