Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
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-Name Accounting Standards Codification
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Amount of increase (decrease) in accumulated depreciation, depletion and amortization of property, plant and equipment.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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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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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of increase (decrease) of physical assets used in the normal conduct of business and not intended for resale, from reclassification, impairment, donation, or changes classified as other. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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PROPERTY AND EQUIPMENT (Details) - USD ($) $ in Thousands	12 Months Ended
PROPERTY AND EQUIPMENT (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 53,364	$ 49,150
Less accumulated depreciation	(36,033)	(32,569)
Total property and equipment, net	17,331	16,581
Total costs transferred from inventory	1,100	1,800	$ 4,100
Depreciation and amortization	4,300	4,400	$ 4,000
Heska Imaging
Property, Plant and Equipment [Line Items]
Total property and equipment, net	200	300
Land
Property, Plant and Equipment [Line Items]
Property and equipment, gross	377	377
Building
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 2,868	2,868
Building \| Minimum
Property, Plant and Equipment [Line Items]
Property plant and equipment, useful life	10 years
Building \| Maximum
Property, Plant and Equipment [Line Items]
Property plant and equipment, useful life	20 years
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 38,432	36,588
Machinery and equipment \| Minimum
Property, Plant and Equipment [Line Items]
Property plant and equipment, useful life	3 years
Machinery and equipment \| Maximum
Property, Plant and Equipment [Line Items]
Property plant and equipment, useful life	15 years
Leasehold and building improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 8,156	7,662
Leasehold and building improvements \| Minimum
Property, Plant and Equipment [Line Items]
Property plant and equipment, useful life	7 years
Leasehold and building improvements \| Maximum
Property, Plant and Equipment [Line Items]
Property plant and equipment, useful life	15 years
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 3,531	$ 1,655
Machinery and equipment \| Minimum
Property, Plant and Equipment [Line Items]
Property plant and equipment, useful life	5 years
Machinery and equipment \| Maximum
Property, Plant and Equipment [Line Items]
Property plant and equipment, useful life	7 years