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v3.20.1

PROPERTY, PLANT AND EQUIPMENT (Details) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Aug. 31, 2018 USD ($) a | Jun. 30, 2018 USD ($) ft² | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Property, plant and equipment |  |  |  |
Property, plant and equipment, gross |  |  | $ 132,354,000 | $ 131,779,000
Accumulated depreciation and amortization |  |  | (72,842,000) | (67,718,000)
Total property, plant and equipment |  |  | 59,512,000 | 64,061,000
Depreciation expense |  |  | 10,500,000 | 9,800,000
Interest costs capitalized |  |  | 0 | 0
Proceeds from sale of property, plant and equipment |  |  | 2,000 | 5,045,000
Gain (loss) on sale of property |  |  | (43,000) | 3,990,000
Land and improvements |  |  |  |
Property, plant and equipment |  |  |  |
Property, plant and equipment, gross |  |  | 448,000 | 518,000
Buildings and improvements |  |  |  |
Property, plant and equipment |  |  |  |
Property, plant and equipment, gross |  |  | 32,374,000 | 32,925,000
Machinery and equipment |  |  |  |
Property, plant and equipment |  |  |  |
Property, plant and equipment, gross |  |  | 28,533,000 | 25,691,000
Furniture and fixtures |  |  |  |
Property, plant and equipment |  |  |  |
Property, plant and equipment, gross |  |  | 18,162,000 | 20,245,000
Computer software and hardware |  |  |  |
Property, plant and equipment |  |  |  |
Property, plant and equipment, gross |  |  | $ 52,837,000 | 52,400,000
MEXICO |  |  |  |
Property, plant and equipment |  |  |  |
Area of real estate property | ft² |  | 29,300 |  |
Proceeds from sale of property, plant and equipment |  | $ 2,600,000 |  |
Gain (loss) on sale of property |  |  |  | 2,300,000
Provo, Utah |  |  |  |
Property, plant and equipment |  |  |  |
Acre of land | a | 8 |  |  |
Proceeds from sale of property, plant and equipment | $ 2,700,000 |  |  |
Impairment of long-lived assets |  |  |  | $ 1,700,000

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