XML 34 R23.htm IDEA: XBRL DOCUMENT
v3.21.2

Note 6 - Stock-based Compensation (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2021
Notes Tables |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Risk-free interest rate |  |  | 0.84% |  |  |  | 0.26% |  |  |  | 0.46% | - | 0.92% |  |  |  | 0.26% | - | 0.33% |
Dividend yield |  |  | 0% |  |  |  | 0% |  |  |  |  | 0% |  |  |  |  |  | 0% |  |
Expected term (in years) |  |  | 5 |  |  |  | 5% |  |  |  |  | 5 |  |  |  |  |  | 5 |  |
Expected volatility |  |  | 46.8% |  |  |  | 69.6% |  |  |  | 47.1% | - | 92.6% |  |  |  | 65.8% | - | 69.6% |
Share-based Payment Arrangement, Option, Activity [Table Text Block] |
Options outstanding |
|  |  |  |  |  | Weighted average |  | Weighted average |  | Aggregate |
|  |  |  |  |  | exercise price |  | remaining |  | intrinsic |
Incentive Options |  | Shares |  |  | per share |  | contractual term |  | value |
Outstanding at December 31, 2020 |  |  | 1,395,000 |  |  | $ | 0.31 |  |  |  |  |  |
Options granted |  |  | 145,000 |  |  |  | 2.62 |  |  |  |  |  |
Options exercised |  |  | (25,000 | ) |  |  | 0.14 |  |  |  |  |  |
Options expired |  |  | - |  |  |  | - |  |  |  |  |  |
Options forfeited |  |  | - |  |  |  | - |  |  |  |  |  |
Outstanding at March 31, 2021 |  |  | 1,515,000 |  |  | $ | 0.53 |  |  |  |  |  |
Options granted |  |  | 127,500 |  |  |  | 2.85 |  |  |  |  |  |
Options exercised |  |  | (360,000 | ) |  |  | 0.22 |  |  |  |  |  |
Options expired |  |  | (20,000 | ) |  |  | 0.17 |  |  |  |  |  |
Options forfeited |  |  | - |  |  |  | - |  |  |  |  |  |
Outstanding at June 30, 2021 |  |  | 1,262,500 |  |  | $ | 0.86 |  |  |  |  |  |
Options granted |  |  | 30,000 |  |  |  | 2.80 |  |  |  |  |  |
Options exercised |  |  | (65,000 | ) |  |  | 0.18 |  |  |  |  |  |
Options expired |  |  | - |  |  |  | - |  |  |  |  |  |
Options forfeited |  |  | - |  |  |  | - |  |  |  |  |  |
Outstanding at September 30, 2021 |  |  | 1,227,500 |  |  | $ | 0.94 |  | 5 years, 1 month |  | $ | 2,450,068 |
Exercisable at September 30, 2021 |  |  | 930,000 |  |  | $ | 0.44 |  | 4 years, 5 months |  | $ | 2,326,943 |
Outstanding at December 31, 2019 |  |  | 1,349,000 |  |  | $ | 0.23 |  |  |  |  |  |
Options granted |  |  | - |  |  |  | - |  |  |  |  |  |
Options exercised |  |  | - |  |  |  | - |  |  |  |  |  |
Options expired |  |  | (129,000 | ) |  |  | 0.17 |  |  |  |  |  |
Options forfeited |  |  | - |  |  |  | - |  |  |  |  |  |
Outstanding at March 31, 2020 |  |  | 1,220,000 |  |  |  | 0.24 |  |  |  |  |  |
Options granted |  |  | 10,000 |  |  |  | 0.15 |  |  |  |  |  |
Options exercised |  |  | - |  |  |  | - |  |  |  |  |  |
Options expired |  |  | (10,000 | ) |  |  | 0.19 |  |  |  |  |  |
Options forfeited |  |  | - |  |  |  | - |  |  |  |  |  |
Outstanding at June 30, 2020 |  |  | 1,220,000 |  |  |  | 0.24 |  |  |  |  |  |
Options granted |  |  | 210,000 |  |  |  | 0.66 |  |  |  |  |  |
Options exercised |  |  | - |  |  |  | - |  |  |  |  |  |
Options expired |  |  | - |  |  |  | - |  |  |  |  |  |
Options forfeited |  |  | - |  |  |  | - |  |  |  |  |  |
Outstanding at September 30, 2020 |  |  | 1,430,000 |  |  | $ | 0.30 |  | 4 years, 5 months |  | $ | 487,773 |
Exercisable at September 30, 2020 |  |  | 1,208,500 |  |  | $ | 0.24 |  | 3 years, 5 months |  | $ | 482,268 |
Schedule of Nonvested Share Activity [Table Text Block] |
|  | Nonvested |
|  |  |  |  |  | Weighted average |
|  |  |  |  |  | grant date |
|  | Shares |  |  | fair value |
Nonvested at December 31, 2020 |  |  | 235,000 |  |  | $ | 0.36 |
Granted |  |  | 145,000 |  |  |  | 1.22 |
Vested |  |  | - |  |  |  | - |
Forfeited |  |  | - |  |  |  | - |
Nonvested at March 31, 2021 |  |  | 380,000 |  |  | $ | 0.94 |
Granted |  |  | 127,500 |  |  |  | 1.19 |
Vested |  |  | (25,000 | ) |  |  | 1.01 |
Forfeited |  |  | - |  |  |  | - |
Nonvested at June 30, 2021 |  |  | 482,500 |  |  | $ | 0.81 |
Granted |  |  | 30,000 |  |  |  | 1.15 |
Vested |  |  | (215,000 | ) |  |  | 0.41 |
Forfeited |  |  | - |  |  |  | - |
Nonvested at September 30, 2021 |  |  | 297,500 |  |  | $ | 1.13 |
Nonvested at December 31, 2019 |  |  | 23,500 |  |  | $ | 0.17 |
Granted |  |  | - |  |  |  | - |
Vested |  |  | (5,000 | ) |  |  | 0.21 |
Forfeited |  |  | - |  |  |  | - |
Nonvested at March 31, 2020 |  |  | 18,500 |  |  | $ | 0.15 |
Granted |  |  | 10,000 |  |  |  | 0.08 |
Vested |  |  | (15,500 | ) |  |  | 0.16 |
Forfeited |  |  | - |  |  |  | - |
Nonvested at June 30, 2020 |  |  | 13,000 |  |  | $ | 0.09 |
Granted |  |  | 210,000 |  |  |  | 0.37 |
Vested |  |  | (1,500 | ) |  |  | 0.12 |
Forfeited |  |  | - |  |  |  | - |
Nonvested at September 30, 2020 |  |  | 221,500 |  |  | $ | 0.36 |

X
- Definition Tabular disclosure of the changes in outstanding nonvested shares. + 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)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfNonvestedShareActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + 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 (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: 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) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_TableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration