Financial Instruments Fair Value Measurements - Schedule of Series A Warrant and Convertible Preferred Stock Conversion Option (Details) - USD ($) |
12 Months Ended | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 15, 2018 |
Dec. 31, 2017 |
Dec. 31, 2018 |
Dec. 31, 2016 |
|||||||||||
Calculated aggregate fair value | [1] | $ 973,340 | ||||||||||||
Exercise price per share | $ 5.00 | |||||||||||||
Series A Warrants [Member] | ||||||||||||||
Calculated aggregate fair value | $ 514,562 | [2] | $ 761,123 | |||||||||||
Number of warrants outstanding | 268,001 | [2] | 268,001 | |||||||||||
Value of common stock | $ 1.70 | [2] | $ 2.29 | |||||||||||
Exercise price per share | $ 6.61 | [2] | $ 6.61 | |||||||||||
Series A Warrants [Member] | Measurement Input, Expected Term [Member] | ||||||||||||||
Expected term (years) | 6 years 1 month 6 days | [2] | 6 years 3 months 19 days | |||||||||||
Series A Warrants [Member] | Measurement Input, Price Volatility [Member] | ||||||||||||||
Fair value assumption, percentage | 59.00% | [2] | 55.00% | |||||||||||
Series A Warrants [Member] | Measurement Input, Risk Free Interest Rate [Member] | ||||||||||||||
Fair value assumption, percentage | 2.70% | [2] | 2.20% | |||||||||||
Series A Warrants [Member] | Measurement Input, Expected Dividend Rate [Member] | ||||||||||||||
Fair value assumption, percentage | [2] | 0.00% | 0.00% | |||||||||||
Series X Warrants [Member] | ||||||||||||||
Exercise price per share | $ 6.00 | [2] | $ 6.00 | |||||||||||
Series A Convertible Preferred Stock Conversion Option [Member] | ||||||||||||||
Calculated aggregate fair value | $ 147,304 | [2] | $ 212,217 | [1] | [1],[3] | |||||||||
Value of common stock | $ 1.70 | [2] | $ 2.29 | |||||||||||
Common stock exchange factor numerator | 6.00 | [2] | 6.00 | |||||||||||
Common stock exchange factor denominator | $ 4.97 | [2] | $ 4.97 | |||||||||||
Series A Convertible Preferred Stock shares | 249,667 | [2] | 249,667 | |||||||||||
Series A Convertible Preferred Stock Conversion Option [Member] | Measurement Input, Expected Term [Member] | ||||||||||||||
Expected term (years) | 6 years 1 month 6 days | [2] | 4 years 11 months 19 days | |||||||||||
Series A Convertible Preferred Stock Conversion Option [Member] | Measurement Input, Price Volatility [Member] | ||||||||||||||
Fair value assumption, percentage | 59.00% | [2] | 55.00% | |||||||||||
Series A Convertible Preferred Stock Conversion Option [Member] | Measurement Input, Risk Free Interest Rate [Member] | ||||||||||||||
Fair value assumption, percentage | 2.70% | [2] | 2.20% | |||||||||||
Series A Convertible Preferred Stock Conversion Option [Member] | Measurement Input, Expected Dividend Rate [Member] | ||||||||||||||
Fair value assumption, percentage | 0.00% | [2] | 0.00% | |||||||||||
|