Which bank acquired MainStreet Bank?

AMARILLO National Association National Bank 18 Bank of Kaukauna 7 Bank Protection 8 CENTENNIAL Bank 15 Century Bank of Kentucky 6 Citizens Bank of Cochran 1 Continental Bank 4 EntreBank 8 Farmers & Merchants State Bank 3 First Cahawba Bank 8 FIRST National Association National Bank OF FORT SMITH 12 Madison County Community Bank 2 Malvern Bank 2 Minnesota Lakes Bank 7 PLAINSCAPITAL Bank 10 PointWest Bank 4 Preferred Bank 1 Raritan State Bank 8 Stock Exchange Bank 8 TRIAD Bank 16