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Accrued Liabilities (Tables)
3 Months Ended
Mar. 31, 2021
Payables and Accruals [Abstract]  
Schedule of accrued liabilities

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March 31, 2021

    

December 31, 2020

Accrued salaries, wages and benefits

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$

11,434

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$

15,071

Accrual for insurance claims liabilities

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59,208

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60,365

Sales taxes

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4,318

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5,909

Property taxes

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482

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908

Sale-leaseback arrangement

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​

821

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​

676

Accounting and audit fees

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​

258

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​

344

Interest

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22

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22

Equipment purchase

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115

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​

461

Other accrued expenses

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1,043

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881

Total accrued liabilities

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$

77,701

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$

84,637