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Stock Options (Details-Option activity) - Share-based Payment Arrangement, Option [Member] - $ / shares | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2021 | Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Number of Options outstanding beginning balance | 9,116,176 |
Weighted Average Remaining Contractual Life | 8 years 6 months 18 days | 1 year 8 months 8 days
Weighted Average Exercise Price per Share beginning balance | $ 1.69 |
Number of Options Granted | 933,636 |
Weighted average remaining contractual life, options granted | 4 years 8 months 12 days |
Weighted Average Exercise Price Options Granted | $ 2.74 |
Number of Options Exercised |  |
Number of Options Forfeited | 150,000 |
Weighted average remaining contractual life, options Forfeited | 4 years 3 months 3 days |
Weighted Average Exercise Price Options Forfeited | $ 2.82 |
Number of Options Expired |  |
Weighted Average Exercise Price Options Expired |  |
Number of Options outstanding ending balance | 9,899,812 | 9,116,176
Weighted Average Exercise Price per Share ending balance | $ 1.76 | $ 1.69
Number of Options Unvested | 3,280,303 |
Weighted Average Exercise Price per Share Unvested | $ 2.32 |
Number of Options exercisable | 6,619,509 |
Weighted Average Exercise Price per Share Exercisable | $ 1.48 |

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(4) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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