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Capital Stock, Stock Plans and Stock-Based Compensation (Details Narrative) - USD ($) |  |  |  |  |  |  |  |  | 1 Months Ended | 9 Months Ended
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Aug. 10, 2020 | Jul. 22, 2020 | Mar. 27, 2020 | Feb. 04, 2020 | Aug. 29, 2019 | Jul. 25, 2019 | Jan. 17, 2019 | Jul. 27, 2017 | May 31, 2018 | Sep. 30, 2020 | Sep. 30, 2019
Unrecognized compensation cost related to unvested options consultant |  |  |  |  |  |  |  |  |  | $ 349,000 |
Unrecognized compensation expected term |  |  |  |  |  |  |  |  |  | 2 years 1 month 6 days |
Proceeds from exercise of stock options |  |  |  |  |  |  |  |  |  | $ 6,000 |
Ferguson Stock Option [Member] |  |  |  |  |  |  |  |  |  |  |
Options to purchase shares of common stock |  |  | 60,000 |  |  |  | 30,000 |  |  |  |
Options extended date description |  |  | The Compensation Committee and the Board approved another amendment to the Ferguson Stock Option whereby the vesting date for the second milestone was further extended to December 31, 2021 from March 31, 2020 and the vesting date for the third milestone for the purchase of up to 60,000 shares of the Company's Common Stock was extended to December 31, 2022 from January 27, 2021. |  |  |  | The Company's Common Stock was extended to March 31, 2020 from January 27, 2019 |  |  |  |
Robert Ferguson [Member] |  |  |  |  |  |  |  |  |  |  |
Number of options exercised |  |  |  |  |  |  |  |  | 10,000 |  |
Unrecognized compensation cost related to unvested options consultant |  |  |  |  |  |  |  |  |  | $ 262,000 |
Remaining stock option |  |  |  |  |  |  |  |  |  | 90,000 |
2003 Outside Directors Stock Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Number of stock option shares granted | 6,000 |  |  |  |  |  |  |  |  |  |
Stock options granted contractual term | 10 years |  |  |  |  |  |  |  |  |  |
Stock options granted vesting period | 6 months |  |  |  |  |  |  |  |  |  |
Stock options, exercise price | $ 7.29 |  |  |  |  |  |  |  |  |  |
2003 Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Number of stock option shares granted |  | 12,000 |  | 6,000 |  | 12,000 |  |  |  |  |
Stock options granted contractual term |  | 10 years |  | 10 years |  | 10 years |  |  |  |  |
Stock options granted vesting period |  | 6 months |  | 6 months |  | 6 months |  |  |  |  |
Stock options, exercise price |  | $ 6.70 |  | $ 7.00 |  | $ 3.31 |  |  |  |  |
2017 Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Number of stock option shares granted |  |  |  |  | 12,500 |  |  |  |  |  |
Stock options granted contractual term |  |  |  |  | 6 years |  |  |  |  |  |
Stock options, exercise price |  |  |  |  | $ 3.90 |  |  |  |  |  |
2017 Plan [Member] | One-Fifth Vesting [Member] |  |  |  |  |  |  |  |  |  |  |
Stock options granted vesting period |  |  |  |  | 5 years |  |  |  |  |  |
2017 Stock Option Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Number of stock option shares granted |  |  |  |  |  |  | 105,000 |  |  |  |
Stock options granted contractual term |  |  |  |  |  |  | 6 years |  |  |  |
Stock options, exercise price |  |  |  |  |  |  | $ 3.15 |  |  |  |
2017 Stock Option Plan [Member] | One-Fifth Vesting [Member] |  |  |  |  |  |  |  |  |  |  |
Stock options granted vesting period |  |  |  |  |  |  | 5 years |  |  |  |
2017 Stock Option Plan [Member] | Executive Officers [Member] |  |  |  |  |  |  |  |  |  |  |
Number of stock option shares granted |  |  |  |  |  |  | 55,000 |  |  |  |
2017 Stock Option Plan [Member] | Consultant [Member] |  |  |  |  |  |  |  |  |  |  |
Number of stock option shares granted |  |  |  |  |  |  |  | 100,000 |  |  |
Stock options, exercise price |  |  |  |  |  |  |  | $ 3.65 |  |  |
2003 Outside Directors Stock Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Stock issued during period for services, shares |  |  |  |  |  |  |  |  |  | 24,959 |
Allocated share-based compensation expense |  |  |  |  |  |  |  |  |  | $ 179,000 |
2017 Stock Option Plan [Member] | Employee [Member] |  |  |  |  |  |  |  |  |  |  |
Number of options exercised |  |  |  |  |  |  |  |  |  | 2,000 |
Proceeds from exercise of stock options |  |  |  |  |  |  |  |  |  | $ 6,300 |
2017 Stock Option Plan [Member] | Former Employee [Member] |  |  |  |  |  |  |  |  |  |  |
Number of shares issued from option exercise (cashless) |  |  |  |  |  |  |  |  |  | 1,884 |
2017 Stock Option Plan [Member] | Former Employee [Member] | First Separate Options [Member] |  |  |  |  |  |  |  |  |  |  |
Stock options, exercise price |  |  |  |  |  |  |  |  |  | $ 3.60 |
Number of options exercised |  |  |  |  |  |  |  |  |  | 8,000 |
2017 Stock Option Plan [Member] | Former Employee [Member] | Second Separate Options [Member] |  |  |  |  |  |  |  |  |  |  |
Stock options, exercise price |  |  |  |  |  |  |  |  |  | $ 3.15 |
Number of options exercised |  |  |  |  |  |  |  |  |  | 2,500 |

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