CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]
BALANCE at Dec. 31, 2011	$ 74,958	$ 28	$ 10,091	$ 0	$ 64,931	$ (92)
BALANCE (in Shares) at Dec. 31, 2011		28,181
Net income (loss)	(2,805)	0	0	0	(2,805)	0
Share-based compensation expense	8,959	1	8,958	0	0	0
Share-based compensation expense (in Shares)		444
Exercise of stock options	10	0	10	0	0	0
Exercise of stock options (in Shares)		7
Equity compensation awards, net	(593)	0	(593)	0	0	0
Cash dividends	(19,872)	0	0	0	(19,872)	0
Employee tax withholdings related to the vesting of equity awards	(636)	0	0	(636)	0	0
Other comprehensive income, net of tax	88	0	0	0	0	88
BALANCE at Dec. 31, 2012	60,109	29	18,466	(636)	42,254	(4)
BALANCE (in Shares) at Dec. 31, 2012		28,632
Net income (loss)	7,370	0	0	0	7,370	0
Share-based compensation expense	5,832	0	5,832	0	0	0
Share-based compensation expense (in Shares)		233
Exercise of stock options	0	0	0	0	0	0
Exercise of stock options (in Shares)		1
Equity compensation awards, net	(203)	0	(203)	0	0	0
Cash dividends	(20,013)	0	0	0	(20,013)	0
Employee tax withholdings related to the vesting of equity awards	(950)	0	0	(950)	0	0
Other comprehensive income, net of tax	12	0	0	0	0	12
BALANCE at Dec. 31, 2013	52,157	29	24,095	(1,586)	29,611	8
BALANCE (in Shares) at Dec. 31, 2013		28,866
Net income (loss)	19,311	0	0	0	19,311	0
Share-based compensation expense	5,651	0	5,651	0	0	0
Share-based compensation expense (in Shares)		92
Exercise of stock options	314	0	314	0	0	0
Exercise of stock options (in Shares)		32
Equity compensation awards, net	(68)	0	(68)	0	0	0
Cash dividends	(20,370)	0	0	0	(20,370)	0
Employee tax withholdings related to the vesting of equity awards	(1,476)	0	0	(1,476)	0	0
Other comprehensive income, net of tax	(4)	0	0	0	0	(4)
BALANCE at Dec. 31, 2014	$ 55,515	$ 29	$ 29,992	$ (3,062)	$ 28,552	$ 4
BALANCE (in Shares) at Dec. 31, 2014		28,990