v3.21.2

Accounts receivable, net | 12 Months Ended
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Dec. 31, 2020
Accounts receivable, net |
Accounts receivable, net | Note 4 – Accounts receivable, net Accounts receivable as of December 31, 2020 and 2019 consisted of the following:
|  | December 31,
|  | 2020 |  | 2019
Accounts receivable |  | $ | 8 |  | $ | 208
Allowance for doubtful accounts |  |  | — |  |  | (196)
|  | $ | 8 |  | $ | 12
The movements in allowance for doubtful accounts are as follows:
|  | 2020 |  | 2019
Balance at the beginning of the year |  | $ | 196 |  | $ | 196
Addition |  |  | — |  |  | —
Written-off |  |  | (196) |  |  | —
Balance at the end of the year |  | $ | — |  | $ | 196
The Company provides credit in the normal course of business. The Company performs ongoing credit evaluations of its customers and maintains allowances for doubtful accounts based on factors surrounding the credit risk of specific customers, historical trends, and other information.

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- Definition The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2196772 + Details
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