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Stock-Based Compensation Plans (Tables) | 12 Months Ended
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Dec. 31, 2019
Share-based Payment Arrangement [Abstract] |
Schedule of share-based compensation expense | Stock compensation expense consisted of the following for the years ended December 31:
|  | 2019 |  | 2018 |  | 2017
Share-based compensation - employees |  | $ | 1,481,016 |  |  | $ | 1,244,606 |  |  | $ | 1,032,094 |
Share-based compensation - nonemployees |  | 4,882 |  |  | 120,092 |  |  | 82,969 |
Share-based compensation - foundation contribution |  | — |  |  | $ | — |  |  | 372,500 |
Total share-based compensation |  | $ | 1,485,898 |  |  | $ | 1,364,698 |  |  | $ | 1,487,563 |
Schedule of stock options activity | Stock option activity for 2019 and 2018 was as follows:
|  | Number of shares |  | Weighted-average exercise price per share |  | Weighted- average remaining contractual term (years) |  | Aggregate intrinsic value
Outstanding, December 31, 2017 |  | 5,800 |  |  | $ | 13.00 |  |  | 1.9 |  | $ | — |
Options granted |  | — |  |  | — |  |  |  |  |
Options exercised |  | — |  |  | — |  |  |  |  |
Options forfeited or expired |  | — |  |  | — |  |  |  |  |
Outstanding, December 31, 2018 |  | 5,800 |  |  | 13.00 |  |  | 0.9 |  | — |
Options granted |  | — |  |  | — |  |  |  |  |
Options exercised |  | — |  |  | — |  |  |  |  |
Options forfeited or expired |  | (5,800) |  |  | 13.00 |  |  |  |  |
Outstanding, December 31, 2019 |  | — |  |  | — |  |  | 0 |  | — |
Exercisable at December 31, 2019 |  | — |  |  | $ | — |  |  | 0 |  | $ | — |
Schedule of stock options activity, additional disclosures | Information related to the stock option plans during 2019, 2018 and 2017 was as follows:
|  | 2019 |  | 2018 |  | 2017
Intrinsic value of options exercised |  | $ | — |  |  | $ | — |  |  | $ | — |
Weighted-average fair value of options exercised |  | $ | — |  |  | $ | — |  |  | $ | — |
Schedule of restricted stock activity | Restricted stock activity was as follows:
|  | Number of shares |  | Weighted- average grant-date fair value
Nonvested, December 31, 2017 |  | 767,845 |  |  | $ | 5.61 |
Shares granted |  | 261,680 |  |  | 6.66 |
Shares vested |  | (170,759) |  |  | 4.79 |
Shares forfeited |  | (25,025) |  |  | 6.19 |
Nonvested, December 31, 2018 |  | 833,741 |  |  | 6.09 |
Shares granted |  | 229,669 |  |  | 5.95 |
Shares vested |  | (225,536) |  |  | 6.71 |
Shares forfeited |  | (22,925) |  |  | 6.20 |
Nonvested, December 31, 2019 |  | 814,949 |  |  | $ | 5.88 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + 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 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 + Details
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