Summary of Significant Accounting Policies (Details Narrative) |
3 Months Ended | |||||
|---|---|---|---|---|---|---|
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Apr. 22, 2021
USD ($)
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Mar. 31, 2021
USD ($)
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Mar. 31, 2020
USD ($)
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Dec. 31, 2020
USD ($)
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Sep. 23, 2020
USD ($)
ft²
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Dec. 31, 2019
USD ($)
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| Allowance for doubtful accounts receivable | $ 191,000 | $ 157,000 | ||||
| Incremental direct costs | 34,000 | $ 29,000 | ||||
| Depreciation expense | 10,000 | 26,000 | ||||
| Area of land | ft² | 4,902 | |||||
| Lease term | 84 months | |||||
| Security deposit | 66,340 | 66,340 | $ 66,340 | |||
| Cash | 2,900,000 | |||||
| Stockholder's Equity | 964,228 | $ 2,618,392 | $ 3,345,832 | $ 2,551,935 | ||
| Minimum [Member] | ||||||
| Stockholder's Equity | 2,500,000 | |||||
| RMB [Member] | ||||||
| Sale of common stock, value | $ 18,841,064 | 20,080,467 | ||||
| PDN China Account [Member] | ||||||
| Sale of common stock, value | $ 2,900,000 | $ 3,100,000 | ||||
| X | ||||||||||
- Definition Incremental direct costs. No definition available.
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- Definition Amount of allowance for credit loss on accounts receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Area of land held. No definition available.
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Term of lessor's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of consideration received by subsidiary or equity investee in exchange for shares of stock issued or sold. Includes amount of cash received, fair value of noncash assets received, and fair value of liabilities assumed by the investor. No definition available.
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- Definition The amount of an asset, typically cash, provided to a counterparty to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, such as a lease. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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