Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
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-Subparagraph (SX 210.7-03(a)(12))
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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

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SEGMENT INFORMATION (Details) $ in Thousands		3 Months Ended
SEGMENT INFORMATION (Details) $ in Thousands	Mar. 31, 2017 USD ($)	Mar. 31, 2017 USD ($) segment	Mar. 31, 2016 USD ($)	Dec. 31, 2016 USD ($)
Segment information
Number of operating segments \| segment		1
Revenues		$ 61,354	$ 63,675
Identifiable assets	$ 182,426	$ 182,426		$ 179,919
Sales \| Customer A
Segment information
Percentage of concentration risk		19.00%	18.00%
Trade receivables \| Customer A
Segment information
Percentage of concentration risk	20.00%
Trade receivables \| Customer B
Segment information
Percentage of concentration risk		10.00%
Outside the United States
Segment information
Revenues		$ 28,170	$ 28,575
Wholly owned foreign subsidiaries
Segment information
Revenues		25,285	$ 25,607
Identifiable assets	$ 78,255	$ 78,255		$ 73,378