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Quarterly Results for Continuing Operations - Quarterly Information for the Applicable Time Periods (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Quarterly information for the applicable time periods
Net sales	$ 7,690	$ 13,780	$ 12,302	$ 15,311	$ 13,693	$ 14,283	$ 13,430	$ 15,848	$ 49,083	$ 57,254
Gross Profit	(298)	2,561	2,044	2,283	37	495	2,028	2,435	6,590	4,995
Net income (loss) from continuing operations	$ (3,618)	$ 204	$ 547	$ 274	$ (1,982)	$ (1,982)	$ 1,062	$ 848	$ (2,593)	$ (2,054)
Earnings (loss) per share:
Basic	$ (0.45)	$ 0.01	$ 0.06	$ 0.02	$ (0.25)	$ (0.25)	$ 0.12	$ 0.09	$ (0.36)	$ (0.29)

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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests.

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The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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