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SUPPLEMENTAL UNAUDITED QUARTERLY FINANCIAL INFORMATION (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Data [Abstract]
Sales	$ 9,494	$ 10,063	$ 9,295	$ 7,775	$ 8,295	$ 7,823	$ 7,274	$ 6,128	$ 36,627	$ 29,520	$ 27,681
Gross profit	4,830	5,062	4,700	3,323	3,514	3,229	3,140	2,674	17,915	12,557	8,992
Net income (loss) attributable to common shareholders	$ (523)	$ (964)	$ (519)	$ (1,944)	$ (1,410)	$ (1,587)	$ (1,497)	$ 12,858	$ (3,950)	$ 8,364	$ (18,214)
Income (loss) per basic share (in dollars per share)	$ (0.02)	$ (0.04)	$ (0.02)	$ (0.07)	$ (0.05)	$ (0.06)	$ (0.06)	$ 0.69	$ (0.14)	$ 0.34	$ (1.03)

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

+ References

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the 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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