XML 217 R197.htm IDEA: XBRL DOCUMENT v3.21.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
3 Months Ended
Mar. 31, 2021
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  
Significant Customers

Accounts Receivable

Revenue

 

March 31,

December 31,

Three Months Ended March 31,

    

2021

    

2020

    

2021

    

2020

Customers:

Customer A

*

*

14

%  

*

Customer B

15

%  

30

%  

*

*

Customer C

13

%  

20

%  

*

*

Customer D

36

%  

17

%  

*

*

Customer E

*

*

39

%  

*

Customer F

*

*

*

16

%