Quarterly report pursuant to Section 13 or 15(d)

ACCRUED LIABILITIES

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ACCRUED LIABILITIES
6 Months Ended
Jun. 30, 2020
Other Liabilities Disclosure [Abstract]  
ACCRUED LIABILITIES ACCRUED LIABILITIES
Accrued liabilities consisted of the following at each balance sheet date:
  As of
  June 30, 2020 December 31, 2019
Employee-related payables $ 657,501    $ 1,657,826   
Inventory-related payables 208,128    —   
Warranty liabilities 115,731    166,301   
Acquisition liabilities 20,225    162,907   
Other 120,657    102,357   
Total $ 1,122,242    $ 2,089,391