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5) Stock Compensation Plans: Schedule of stock inventive plan changes (Details) - USD ($) | 9 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019 | Dec. 31, 2018
Common Class A |  |  |  |
Shares, Outstanding | 1,112,218 | 993,478 | 1,086,053 | 577,280
Shares outstanding | $ 4.28 | $ 4.50 | $ 4.41 | $ 5.15
Adjustment for effect of stock dividends | 27,968 |  |  |
Shares Granted | 77,000 | 2,000 |  |
Shares Exercised | (78,803) | (19,796) |  |
Per Share Shares Exercised |  | $ 0 |  |
Shares Cancelled | 0 |  |  |
Options Exercisable | 1,053,033 | 955,195 |  |
Options exercisable | $ 4.39 | $ 4.46 |  |
Available options for future grant | $ 325,372 | $ 299,351 |  |
Weighted average contractual term of options outstanding | P5Y8M19D | P5Y4M24D |  |
Weighted average contractual term of options exercisable | P5Y6M3D | P5Y4M2D |  |
Aggregated intrinsic value of options outstanding | $ 2,242,693 | $ 765,360 |  |
Aggregated intrinsic value of options exercisable | $ 2,228,291 | $ 765,360 |  |
Common Class C |  |  |  |
Shares, Outstanding | 793,486 | 513,466 | 594,132 | 1,011,274
Shares outstanding | $ 4.88 | $ 5.33 | $ 5.36 | $ 4.49
Adjustment for effect of stock dividends | 19,354 |  |  |
Shares Granted | 180,000 | 0 |  |
Shares Exercised | 0 | (63,814) |  |
Per Share Shares Exercised |  | $ 0 |  |
Shares Cancelled | 0 |  |  |
Options Exercisable | 652,805 | 489,840 |  |
Options exercisable | $ 5.14 | $ 5.34 |  |
Available options for future grant | $ 266,500 | $ 146,425 |  |
Weighted average contractual term of options outstanding | P5Y11M8D | P3Y7M17D |  |
Weighted average contractual term of options exercisable | P5Y5M27D | P3Y4M13D |  |
Aggregated intrinsic value of options outstanding | $ 1,115,985 | $ 106,646 |  |
Aggregated intrinsic value of options exercisable | $ 894,505 | $ 106,646 |  |

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