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5) Stock-based Compensation (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Text Block [Abstract] |  |  |  |
Share-based Payment Arrangement, Amount Capitalized | $ 101,520 | $ 65,037 | $ 167,397 | $ 129,741
Unrecognized compensation expense related to the options issued in December 2014 | $ 227,269 |  | 227,269 |
Total intrinsic value |  |  | $ 191,656 | $ 15,220

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