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Other Property, Plant and Equipment, Net (Tables)
3 Months Ended
Mar. 31, 2022
Other Property, Plant and Equipment, Net  
Schedule of other property, plant and equipment, net

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March 31, 

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December 31,

​

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2022

    

2021

Land

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$

9,163

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$

9,163

Buildings and leasehold improvements

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248

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191

Machinery and office equipment

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1,360

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1,300

Software and other

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5,861

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5,347

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16,632

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16,001

Less: accumulated depreciation

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(5,108)

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(4,749)

Total other property, plant and equipment, net

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$

11,524

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$

11,252