Expected Amortization of unrecognized compensation costs in year four following balance sheet date.

No definition available.

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- Definition

The amount of unrecognized compensation costs related to stock-based compensation the company expects to amortize in year one following the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

Expected Amortization of unrecognized compensation costs in year three following balance sheet date.

+ References

No definition available.

+ Details

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- Definition

Expected Amortization of unrecognized compensation costs in year two following balance sheet date.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5047-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- References

No definition available.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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CAPITAL STOCK, Allocated Share-Based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Stock-Based Compensation Expense [Abstract]
Allocated share-based compensation expense	$ 6,258	$ 8,311	$ 7,916
Expected future amortization of unrecognized compensation cost [Abstract]
2017	4,800
2018	2,800
2019	1,200
2020	100
Total unrecognized compensation cost related to non-vested stock-based compensation awards	$ 8,900
Weighted-average recognition period of total unrecognized compensation cost (in years)	1 year 70 days
Cost of Products Revenues [Member]
Stock-Based Compensation Expense [Abstract]
Allocated share-based compensation expense	$ 128	53	60
Cost of Services Revenues [Member]
Stock-Based Compensation Expense [Abstract]
Allocated share-based compensation expense	194	189	381
Research and Development Expense [Member]
Stock-Based Compensation Expense [Abstract]
Allocated share-based compensation expense	667	694	376
Marketing and Selling Expense [Member]
Stock-Based Compensation Expense [Abstract]
Allocated share-based compensation expense	1,540	1,944	1,958
General and Administrative Expense [Member]
Stock-Based Compensation Expense [Abstract]
Allocated share-based compensation expense	$ 3,729	$ 5,431	$ 5,141
Minimum [Member] \| Employee Stock Option [Member]
Stock-Based Compensation Expense [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	7 years
Maximum [Member] \| Employee Stock Option [Member]
Stock-Based Compensation Expense [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	10 years