Accounting Policies and Basis of Presentation (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	0 Months Ended				3 Months Ended		9 Months Ended
	Apr. 09, 2014	Feb. 28, 2014	Apr. 10, 2013	Feb. 28, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Accounting Policies [Abstract]
Shipping and handling revenue					$ 3,237	$ 3,153	$ 10,400	$ 8,789
Effective income tax rate, continuing operations (percent)					(23.10%)	(0.30%)	(6.60%)	(0.20%)
Provision (benefit) for income taxes					(1,169)	19	(1,002)	44
Debt instrument, fair value disclosure					16,708		16,708		23,300
Long-term debt, gross					16,663		16,663		23,168
Common stock, dividends, per share, declared (in Dollars per share)		$ 0.05		$ 0.05
Payments of dividends	907		916				907	916
Dividends paid with cash	884		897
Dividend equivalent payments	$ 23		$ 19