Gross Margin

No definition available.

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1,2)
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

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- Definition

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.

+ References

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- Definition

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

+ References

No definition available.

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- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

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- References

No definition available.

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- Definition

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.

+ References

No definition available.

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Segment and Geographic Information - Operating Results (Details) $ in Thousands	3 Months Ended								9 Months Ended	12 Months Ended
	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Sep. 30, 2019 segment	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Segment Reporting [Abstract]
Number of operating segments \| segment									1
Segment Reporting Information [Line Items]
Revenues	$ 42,896	$ 43,814	$ 48,048	$ 41,861	$ 46,162	$ 51,025	$ 51,705	$ 42,467		$ 176,619	$ 191,359	$ 138,580
Gross profit	$ 9,992	$ 12,962	$ 15,871	$ 13,514	$ 16,506	$ 18,047	$ 17,679	$ 14,729		$ 52,339	66,961	44,274
Gross Margin										29.60%
Operating income (loss)										$ (9,909)	$ 17,063	$ 9,798
Operating segments \| Laser Products
Segment Reporting Information [Line Items]
Revenues										174,059
Gross profit										$ 53,247
Gross Margin										30.60%
Operating income (loss)										$ (768)
Operating segments \| Advanced Development
Segment Reporting Information [Line Items]
Revenues										2,560
Gross profit										$ 293
Gross Margin										11.40%
Operating income (loss)										$ 186
Corporate and Other
Segment Reporting Information [Line Items]
Revenues										0
Gross profit										(1,201)
Operating income (loss)										$ (9,326)