Consolidated Statements of Stockholders' Equity (USD $) In Thousands	Total	Common Stock	Paid-in Capital	Retained Earnings
Balance at Dec. 31, 2013	$ 164,106	$ 147	$ 0	$ 163,959
Balance (in shares) at Dec. 31, 2013		36,711
Net income	9,822			9,822
Stock options exercised and restricted stock awards vested, including tax benefits	696	0	696
Stock options exercised and restricted stock awards vested, including tax benefits (in shares)		43
Share-based compensation	412		412
Stock repurchased and retired	(2,981)	0	(1,108)	(1,873)
Stock repurchased and retired (in shares)		(102)
Balance at Mar. 31, 2014	$ 172,055	$ 147	$ 0	$ 171,908
Balance (in shares) at Mar. 31, 2014		36,652