Accounting Policies and Basis of Presentation (Detail) - USD ($) $ / shares in Units, $ in Thousands					3 Months Ended		9 Months Ended
	Apr. 21, 2015	Mar. 26, 2015	Apr. 09, 2014	Mar. 17, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Accounting Policies [Abstract]
Shipping and handling revenue					$ 3,138	$ 3,237	$ 10,088	$ 10,400
Debt instrument, fair value disclosure					28,415		28,415		$ 10,297
Long-term debt, gross					$ 28,813		28,813		$ 10,283
Common stock, dividends, per share, declared (in Dollars per share)		$ 0.06		$ 0.05
Payments of dividends	$ 1,087		$ 907				$ 1,087	$ 907
Dividends paid with cash	1,061		884
Dividend equivalent payments	$ 26		$ 23