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Balance Sheet Components (Tables)
6 Months Ended
Jun. 30, 2020
Balance Sheet Components  
Schedule of Components of Accounts Receivable, net

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June 30, 

    

December 31, 

    

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2020

   

2019

   

Accounts receivable

​

$

64,658

​

$

29,304

​

Less: Allowance for doubtful accounts

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—

​

 

—

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Accounts receivable, net

​

$

64,658

​

$

29,304

​