Stockholders' Equity - Summary of Outstanding Stock Warrants (Details) - Warrants [Member] - $ / shares |
12 Months Ended | |
|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
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| Number of Warrants Balance Beginning | 182,191 | 193,492 |
| Number of Warrants Expired | (301) | |
| Number of Warrants Exercised | (11,000) | |
| Number of Warrants Balance Ending | 182,191 | 182,191 |
| Number of Warrants Exercisable | 182,191 | |
| Weighted Average Exercise Price Balance Beginning | $ 25.04 | $ 23.96 |
| Weighted Average Exercise Price Expired | 62.40 | |
| Weighted Average Exercise Price Exercised | 4.80 | |
| Weighted Average Exercise Price Balance Ending | 25.04 | $ 25.04 |
| Weighted Average Exercise Price Exercisable | $ 25.04 | |
| Weighted Average Remaining Contractual Life (in years) Balance Beginning | 3 years 1 month 6 days | 4 years 1 month 6 days |
| Weighted Average Remaining Contractual Life (in years) Balance Ending | 2 years 9 months 18 days | 3 years 1 month 6 days |
| Weighted Average Remaining Contractual Life (in years) Exercisable | 2 years 9 months 18 days | |
| X | ||||||||||
- Definition Number of equity instruments non equity options exercisable, including both vested and non-vested instruments. No definition available.
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- Definition Weighted Average Exercise Price, exercisable. No definition available.
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- Definition Weighted Average Exercise Price, exercised. No definition available.
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- Definition Weighted Average Exercise Price Expired. No definition available.
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- Definition Weighted Average Exercise Price, outstanding. No definition available.
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- Definition Weighted Average Contractual Life in Years, outstanding. No definition available.
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- Definition Weighted Average Contractual Life in Years, outstanding. No definition available.
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- Definition Weighted Average Contractual Life in Years, exercisable. No definition available.
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- Definition Number of non-option equity instruments exercised by participants. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of shares under non-option equity instrument agreements for which rights to exercise lapsed. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of equity instruments other than options outstanding, including both vested and non-vested instruments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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