Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^F1,F2,F3	Dec 4, 2015	P	305	$8.8431	A	1,209,402	I	See footnotes
Common Stock^F1,F2,F3	Dec 4, 2015	P	200	$8.80	A	1,209,602	I	See footnotes
Common Stock^F1,F2,F3	Dec 4, 2015	P	400	$8.7825	A	1,210,002	I	See footnotes
Common Stock^F1,F2,F3	Dec 7, 2015	P	300	$8.7733	A	1,210,302	I	See footnotes
Common Stock^F1,F2,F3	Dec 7, 2015	P	400	$8.7956	A	1,210,702	I	See footnotes
Common Stock^F1,F2,F3	Dec 7, 2015	P	3,487	$8.8357	A	1,214,189	I	See footnotes

Table II — derivative securities

No Table II lines on this filing.

Explanation of responses

F1This Form 4 is filed on behalf of Luther King Capital Management Corporation (LKCM), LKCM Private Discipline Master Fund, SPC (PDP), LKCM Micro-Cap Partnership, L.P. (Micro), LKCM Core Discipline, L.P. (Core), J. Luther King, Jr. and J. Bryan King (Reporting Persons). LKCM Private Discipline Management, L.P. holds the management shares of PDP, and LKCM Alternative Management, LLC (PDP GP) is its general partner. LKCM Micro-Cap Management, L.P. (Micro GP) is the general partner of Micro. LKCM Core Discipline Management, L.P. (Core GP) is the general partner of Core. LKCM is the investment manager for PDP, Micro and Core. J. Luther King, Jr. is a controlling shareholder of LKCM, and J. Luther King, Jr. and J. Bryan King are controlling members of PDP GP, Micro GP and Core GP.
F2Includes (i) 1,169,689 shares held by PDP, (ii) 30,500 shares held by Micro, and (iii) 14,000 shares held by Core.
F3Each of the Reporting Persons hereby expressly disclaims membership in a group under Securities Exchange Act of 1934, as amended, with respect to the securities reported herein, and this Form 4 shall not be deemed to be an admission that any such Reporting Person is a member of such a group. Each of the Reporting Persons hereby expressly disclaims beneficial ownership of the securities reported herein, except to the extent of its pecuniary interest therein, and this Form 4 shall not be deemed to be an admission that any such Reporting Person is the beneficial owner of the securities reported herein for purposes of the Securities Exchange Act of 1934, as amended, or for any other purpose.