Condensed Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Net sales	$ 15,311us-gaap_SalesRevenueNet	$ 15,848us-gaap_SalesRevenueNet
Cost of sales	13,028us-gaap_CostOfGoodsAndServicesSold	13,413us-gaap_CostOfGoodsAndServicesSold
Gross profit	2,283us-gaap_GrossProfit	2,435us-gaap_GrossProfit
Operating expenses:
Research and development	138us-gaap_ResearchAndDevelopmentExpense	66us-gaap_ResearchAndDevelopmentExpense
Selling and marketing	603us-gaap_SellingAndMarketingExpense	663us-gaap_SellingAndMarketingExpense
General and administrative	1,267us-gaap_GeneralAndAdministrativeExpense	1,208us-gaap_GeneralAndAdministrativeExpense
Total operating expenses	2,008us-gaap_OperatingExpenses	1,937us-gaap_OperatingExpenses
Income (loss) from consolidated continuing operations	275us-gaap_OperatingIncomeLoss	498us-gaap_OperatingIncomeLoss
Net equity income from foreign joint ventures’ operations:
Equity income from foreign joint ventures’ operations	116	474
Foreign joint ventures’ operations related expenses	(98)	(112)
Net equity income from foreign joint ventures’ operations	18	362
Income (loss) from consolidated continuing operations and net equity income from foreign joint ventures’ operations	293	860
Other income (expense):
Interest expense and other, net	(19)us-gaap_NonoperatingIncomeExpense	(12)us-gaap_NonoperatingIncomeExpense
Continuing operations income (loss) before income taxes	274	848
Net income (loss) from continuing operations	274	848
Discontinued operations income (loss)		(268)
Net income (loss) from discontinued operations		(268)
Net income (loss) before dividends on redeemable convertible preferred stock	274us-gaap_NetIncomeLoss	580us-gaap_NetIncomeLoss
Dividends on redeemable convertible preferred stock	(87)	(86)
Net income (loss) attributable to common stockholders	$ 187	$ 494
Earnings (loss) from continuing operations per common share:
Basic	$ 0.02	$ 0.09
Diluted	$ 0.02	$ 0.09
Weighted - average number of common shares outstanding:
Basic	8,206,684	8,053,497
Diluted	8,441,782	8,625,258
Loss per common share from discontinued operations:
Basic and diluted	$ 0.00	$ (0.03)
Total earnings (loss) per common share:
Basic	$ 0.02us-gaap_EarningsPerShareBasic	$ 0.06us-gaap_EarningsPerShareBasic
Diluted	$ 0.02us-gaap_EarningsPerShareDiluted	$ 0.06us-gaap_EarningsPerShareDiluted
Continuing Operations
Weighted - average number of common shares outstanding:
Basic	8,206,684	8,053,497
Diluted	8,441,782	9,625,258

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The net result for the period of deducting operating expenses from operating revenues.

+ References

No definition available.

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- Definition

Dividends paid to preferred stock holders that is redeemable solely at the option of the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 45

-Paragraph 11

-URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1377-109256

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 985

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 730

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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The aggregate total amount of expenses directly related to the marketing or selling of products or services.

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No definition available.

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- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References

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- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

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