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Stock-Based Compensation | 6 Months Ended
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Jun. 30, 2021
Share-based Payment Arrangement [Abstract] |
Stock-Based Compensation | 14. Stock-Based Compensation From time to time, we issue stock options and restricted stock as compensation for services rendered by our directors and employees. Restricted Stock On February 15, 2021 and January 2, 2020, we issued 12,207 shares and 16,429 shares, respectively, of restricted common stock to our directors as part of their annual compensation plan. The grants of restricted common stock were made outside the 2015 Plan and were not subject to any vesting conditions. Stock compensation of $57,500 was recorded on this issuance of restricted common stock for the six months ended June 30, 2021. Stock compensation of $57,500 on the issuance of the restricted common stock to directors was recorded for the twelve months ending December 31, 2020. Stock Options We did not make any stock option grants during the six months ended June 30, 2021 or 2020. Stock-based compensation for options was $23,098 and $7,109, during the three months ended June 30, 2021 and 2020, respectively, and $46,196 and $18,682, during the six months ended June 30, 2021 and 2020, respectively. A summary of stock option activity during the six months ended June 30, 2021 and 2020 is as follows: Schedule of Stock Option Activity
|  |  |  |  |  |  |  | Weighted- |  |  |  |
|  |  |  |  | Weighted- |  |  | Average |  |  |  |
|  | Shares |  |  | Average |  |  | Remaining |  |  | Aggregate |
|  | Under |  |  | Exercise |  |  | Contractual |  |  | Intrinsic |
|  | Option |  |  | Price |  |  | Life |  |  | Value |
Outstanding at January 1, 2021 |  |  | 145,360 |  |  | $ | 5.61 |  |  |  | 9 years |  |  | $ | 19,200 |
Outstanding at June 30, 2021 |  |  | 145,360 |  |  | $ | 5.61 |  |  |  | 9 years |  |  | $ | 19,200 |
Exercisable at June 30, 2021 |  |  | 41,560 |  |  | $ | 9.34 |  |  |  | 7 years |  |  | $ | 19,200 |
|  |  |  |  |  |  |  | Weighted- |  |  |  |
|  |  |  |  | Weighted- |  |  | Average |  |  |  |
|  | Shares |  |  | Average |  |  | Remaining |  |  | Aggregate |
|  | Under |  |  | Exercise |  |  | Contractual |  |  | Intrinsic |
|  | Option |  |  | Price |  |  | Life |  |  | Value |
Outstanding at January 1, 2020 |  |  | 46,860 |  |  | $ | 9.02 |  |  |  | 9 years |  |  | $ | 19,200 |
Outstanding at June 30, 2020 |  |  | 46,860 |  |  | $ | 9.02 |  |  |  | 8 years |  |  | $ | 19,200 |
Exercisable at June 30, 2020 |  |  | 38,785 |  |  | $ | 9.54 |  |  |  | 8 years |  |  | $ | 19,200 |
As of June 30, 2021 and December 31, 2020, there was $276,678 and $ 322,874, respectively, of total unrecognized compensation costs related to stock options granted under our stock option agreements. The unrecognized compensation cost is expected to be recognized over a weighted-average period of three years. The total fair value of stock options that vested during the six months ended June 30, 2021 and 2020 was $10,800 and $14,963, respectively.

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- Definition The entire disclosure for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI http://asc.fasb.org/topic&trid=2228938 + Details
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