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Stock-Based Compensation (Details Narrative) - USD ($) |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 28, 2018 | Dec. 31, 2018 | Dec. 31, 2018 | Dec. 31, 2017 | May 16, 2017
Number of shares reserved for future issuance |  | 3,148,743 | 3,148,743 |  | 200,000
2018 Stock Incentive Plan [Member] |  |  |  |  |
Equity awards, number of stock authorized |  | 2,700,000 | 2,700,000 |  |
Percentage of fair market value of shares |  | 100.00% | 100.00% |  |
Percentage of outstanding stock determining factor for incentive stock price |  | 10.00% | 10.00% |  |
Compensation cost |  |  | $ 4,600,000 | $ 1,100,000 |
Stock based compensation cost expected to be recognized, weighted average period |  |  | 10 months 25 days |  |
Weighted average grant date fair value of stock option awards granted |  |  | $ 2.36 | $ 2.32 |
2018 Stock Incentive Plan [Member] | Minimum [Member] |  |  |  |  |
Percentage of fair market value of shares |  | 110.00% | 110.00% |  |
2007 Stock Incentive Plan [Member] |  |  |  |  |
Equity awards, number of stock authorized |  | 688,531 | 688,531 |  |
Unrecognized compensation cost related to non-vested stock based compensation |  | $ 1,800,000 | $ 1,800,000 |  |
Inducement Option Grants [Member] | Three New Employees [Member] |  |  |  |  |
Inducement option grant, exercise price per share | $ 2.77 |  |  |  |
Options expiration period | 10 years |  |  |  |
Number of equity awards granted |  | 106,502 |  |  |
Inducement Option Grants [Member] | Three New Employees [Member] | Restricted Stock Awards [Member] |  |  |  |  |
Shares issued | 164,004 |  |  |  |
Restricted Stock Awards [Member] |  |  |  |  |
Weighted average grant date fair value of stock option awards granted |  |  | $ 2.71 | $ 42.20 |
Restricted Stock Awards [Member] | Inducement Option Grants [Member] | Three New Employees [Member] |  |  |  |  |
Shares issued | 19,000 |  |  |  |
Equity Stock Awards [Member] |  |  |  |  |
Number of shares reserved for future issuance |  | 3,399,893 | 3,399,893 |  |
Number of equity awards granted |  |  | 3,064,741 |  |
Number of equity awards available for future issuance |  | 335,152 | 335,152 |  |

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