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Shareholders' Equity (Tables) | 12 Months Ended
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Mar. 31, 2020
Equity [Abstract] |
Summary of Stock Option Activity | The following table summarizes information about employee stock options outstanding at March 31, 2020:
|  | Fiscal 2020 |  |  | Fiscal 2019 |
|  | Number of Options |  |  | Weighted Average Exercise Price |  |  | Number of Options |  |  | Weighted Average Exercise Price |
Stock Options: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of year |  |  | 2,210,000 |  |  | $ | 0.25 |  |  |  | 2,330,000 |  |  | $ | 0.22 |
Granted |  |  | 100,000 |  |  | $ | 0.38 |  |  |  | 100,000 |  |  | $ | 0.55 |
Exercised |  |  | (60,000 | ) |  | $ | 0.17 |  |  |  | (160,000 | ) |  | $ | 0.08 |
Forfeited |  |  | (20,000 | ) |  | $ | 0.03 |  |  |  | (60,000 | ) |  | $ | 0.11 |
Balance at end of year * |  |  | 2,230,000 |  |  | $ | 0.26 |  |  |  | 2,210,000 |  |  | $ | 0.25 |
Options exercisable at end of year |  |  | 2,130,000 |  |  | $ | 0.25 |  |  |  | 2,110,000 |  |  | $ | 0.15 |
Schedule of Employee Stock Options Outstanding | The following table summarizes information about employee stock options outstanding at March 31, 2020:
Range of Exercise Price |  |  | Number Outstanding at March 31, 2020 |  |  | Weighted Average Remaining Contractual Life |  |  | Weighted Average Exercise Price |  |  | Number Exercisable at March 31, 2020 |  |  | Weighted Average Exercise Price |
| $0.04 - $0.38 |  |  |  | 1,650,000 |  |  |  | 4.3 |  |  | $ | 0.13 |  |  |  | 1,550,000 |  |  | $ | 0.16 |
| $0.47 - $0.55 |  |  |  | 580,000 |  |  |  | 7.4 |  |  | $ | 0.50 |  |  |  | 580,000 |  |  | $ | 0.50 |
| * |  |  |  | 2,230,000 |  |  |  |  |  |  |  |  |  |  |  | 2,130,000 |  |  |  |  |
* Total number of options outstanding as of March 31, 2020 includes 1,080,000 options issued to five current and two former directors as compensation and 1,150,000 options issue to key employees that were not issued from the Plan.

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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + 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 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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