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v3.20.2

5) Stock-based Compensation: Schedule of stock inventive plan changes (Details) - USD ($) | 6 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019 | Dec. 31, 2018
Common Class A |  |  |  |
Shares, Outstanding | 1,113,349 | 997,946 | 1,086,053 | 577,280
Shares outstanding | $ 4.27 | $ 4.50 | $ 4.41 | $ 5.15
Adjustment for effect of stock dividends | 29,099 |  |  |
Shares Granted | 77,000 | 2,000 |  |
Shares Exercised | (78,803) | (15,328) |  |
Shares Cancelled | 0 | 0 |  |
Options Exercisable | 1,013,955 | 921,895 |  |
Options exercisable | $ 4.27 | $ 4.42 |  |
Available options for future grant | $ 325,372 | $ 299,351 |  |
Weighted average contractual term of options outstanding | 5.97 years | 5.65 years |  |
Weighted average contractual term of options exercisable | 5.61 years | 5.53 years |  |
Aggregated intrinsic value of options outstanding | $ 2,568,502 | $ 822,875 |  |
Aggregated intrinsic value of options exercisable | $ 2,338,090 | $ 822,875 |  |
Common Class C |  |  |  |
Shares, Outstanding | 796,676 | 577,280 | 594,132 | 1,011,274
Shares outstanding | $ 4.87 | $ 4.42 | $ 5.36 | $ 4.49
Adjustment for effect of stock dividends | 22,544 |  |  |
Shares Granted | 180,000 | 0 |  |
Shares Exercised | 0 | 0 |  |
Shares Cancelled | 0 | 0 |  |
Options Exercisable | 561,440 | 530,030 |  |
Options exercisable | $ 5.11 | $ 5.14 |  |
Available options for future grant | $ 266,500 | $ 146,425 |  |
Weighted average contractual term of options outstanding | 6.18 years | 3.46 years |  |
Weighted average contractual term of options exercisable | 5.32 years | 2.93 years |  |
Aggregated intrinsic value of options outstanding | $ 1,360,855 | $ 218,010 |  |
Aggregated intrinsic value of options exercisable | $ 823,712 | $ 218,010 |  |

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