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Amount of goodwill and intangible assets net of tax acquired as result of business combination.

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The amount tangible assets acquired resulting from business combination.

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The amount of net assets acquired as of the acquisition date. The amount is net of tagible asests and liabilities.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount of other assets expected to be realized or consumed before one year or the normal operating cycle, if longer, acquired at the acquisition date.

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- Definition

Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date.

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Amount of deferred revenue expected to be recognized as such within one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of deferred tax asset attributable to deductible temporary differences and carryforwards acquired at the acquisition date.

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Amount of deferred tax liability attributable to taxable temporary difference assumed at the acquisition date that are classified as current.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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The amount of inventory recognized as of the acquisition date.

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Amount of liabilities assumed at the acquisition date.

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Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Acquisition - Allocation of purchase price, Tangible assets and liabilities assumed (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Jan. 31, 2018	Dec. 31, 2016
Goodwill and intangible assets
Goodwill	$ 57,304	$ 36,336		$ 38,032
Data Sciences International, Inc. (DSI) [Member]
Recognized Identifiable Assets Acquired and Liabilities Assumed [Abstract]
Tangible assets			$ 34,010
Liabilities assumed			(11,949)
Net assets			22,061
Goodwill and intangible assets
Goodwill			21,865
Amortizable intangible assets			40,318
Deferred tax, net			(13,120)
Total goodwill and intangible assets, net of tax			49,063
Acquisition purchase price			71,124
Tangible assets and liabilities assumed, as referenced above, preliminarily consist of the following:
Cash acquired			2,576
Accounts receivable, net			5,069
Inventories			11,512
Other current assets			810
Property, plant and equipment, net			3,574
Deferred income tax assets, net			10,469
Tangible assets			34,010
Accounts payable and accrued liabilities			6,001
Deferred revenue including customer advances			2,976
Other long term liabilities			2,972
Liabilities assumed			11,949
Business Acquisitions Pro Forma Revenue	124,319	121,104
Business Acquisitions Pro Forma Net Income Loss	$ 3,614	$ (8,454)
Trade Names [Member] \| Data Sciences International, Inc. (DSI) [Member]
Goodwill and intangible assets
Amortizable intangible assets			3,524
Developed Technology [Member] \| Data Sciences International, Inc. (DSI) [Member]
Goodwill and intangible assets
Amortizable intangible assets			25,570
Customer Relationships [Member] \| Data Sciences International, Inc. (DSI) [Member]
Goodwill and intangible assets
Amortizable intangible assets			9,837
In-process research and development [Member] \| Data Sciences International, Inc. (DSI) [Member]
Goodwill and intangible assets
Amortizable intangible assets			$ 1,387