Consolidated Statement of Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained
Beginning at Dec. 31, 2013	$ 227,812	$ 278	$ (3,003)	$ 163,970	$ 66,567
Treasury stock, shares at Dec. 31, 2013	(317,731)		(317,731)
Balance, shares at Dec. 31, 2013	27,710,775	27,710,775
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	1,098			1,098
Exercise of stock options	794	0		794
Exercise of stock options, shares	130,705	130,705
Net income	1,587				1,587
Beginning at Sep. 30, 2014	$ 231,291	$ 278	$ (3,003)	$ 165,862	$ 68,154
Treasury stock, shares at Sep. 30, 2014	(317,731)		(317,731)
Balance, shares at Sep. 30, 2014	27,841,840	27,841,480