PROPERTY AND EQUIPMENT (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment, Net [Abstract]
Property and equipment, gross	$ 143,267	$ 141,237
Accumulated depreciation and amortization	(104,490)	(102,088)
Property and equipment, net	38,777	39,149
Depreciation expense	5,100	5,300	$ 5,800
Land [Member]
Property, Plant and Equipment, Net [Abstract]
Property and equipment, gross	16,843	16,199
Buildings [Member]
Property, Plant and Equipment, Net [Abstract]
Property and equipment, gross	56,385	55,434
Equipment [Member]
Property, Plant and Equipment, Net [Abstract]
Property and equipment, gross	$ 70,039	$ 69,604

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

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-Publisher FASB
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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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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.

+ References

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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

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