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Stockholders' Equity (Details Narrative) - USD ($) |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 07, 2019 | Sep. 26, 2018 | Sep. 20, 2018 | Jan. 05, 2018 | Nov. 17, 2017 | Sep. 21, 2017 | Nov. 30, 2017 | Jan. 31, 2017 | Jan. 30, 2017 | Dec. 31, 2016 | Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018
Common stock, shares authorized |  |  |  |  |  |  |  |  |  |  | 75,000,000 |  | 75,000,000 |  | 75,000,000
Common stock, par value |  |  |  |  |  |  |  |  |  |  | $ 0.001 |  | $ 0.001 |  | $ 0.001
Common stock voting rights |  |  |  |  |  |  |  |  |  |  |  |  | The holders of the Company's common stock are entitled to one vote per share. |  |
Debt issuance cost |  |  |  |  |  |  |  |  |  |  | $ 216,502 |  | $ 216,502 |  | $ 288,669
Interest expense |  |  |  |  |  |  |  |  |  |  | $ 239,347 | $ 219,353 | $ 472,494 | $ 428,336 |
Common stock, shares issued |  |  |  |  |  |  |  |  |  |  | 18,524,878 |  | 18,524,878 |  | 17,729,421
Common stock, shares outstanding |  |  |  |  |  |  |  |  |  |  | 18,524,878 |  | 18,524,878 |  | 17,729,421
2015 Equity Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, capital shares reserved for future issuance |  |  |  |  |  |  |  |  |  |  | 3,366,506 |  | 3,366,506 |  |
Warrants [Member] | Placement Agent [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase of common stock, shares |  |  |  |  |  |  |  | 68,923 |  | 84,923 |  |  |  |  |
Underwriting expenses |  |  |  |  |  |  |  | $ 52,951 |  | $ 65,243 |  |  |  |  |
Exercise of Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, capital shares reserved for future issuance |  |  |  |  |  |  |  |  |  |  | 6,726,625 |  | 6,726,625 |  |
2016 Notes [Member] | Warrants [Member] | Placement Agent [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment made to placement agent |  |  |  |  |  |  |  | $ 100,000 |  |  |  |  |  |  |
Warrants issued to purchase of common stock, shares |  |  |  |  |  |  |  | 153,846 |  |  |  |  |  |  |
Class of warrant or right, exercise price of warrants or rights |  |  |  |  |  |  |  | $ 0.75 |  |  |  |  |  |  |
Warrant expiration term |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |
2016 Notes [Member] | Warrant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of warrant issued, per share |  |  |  |  |  |  |  | $ 0.77 |  |  |  |  |  |  |
2017 Notes [Member] | Warrant [Member] | Placement Agent [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment made to placement agent |  |  |  |  | $ 172,000 |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase of common stock, shares |  |  |  |  | 354,000 |  | 506,000 |  |  |  |  |  |  |  |
Class of warrant or right, exercise price of warrants or rights |  |  |  |  | $ 0.25 |  | $ 0.25 |  |  |  |  |  |  |  |
Warrant expiration term |  |  |  |  | 5 years |  | 5 years |  |  |  |  |  |  |  |
Fair value of warrant issued, per share |  |  |  |  | $ 0.17 |  | $ 0.13 |  |  |  |  |  |  |  |
Debt issuance cost |  |  |  |  | $ 126,603 |  | $ 126,603 |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  |  |  | $ 22,089 | 42,600 | $ 44,178 | 85,200 |
2018 Notes [Member] | Warrant [Member] | Placement Agent [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment made to placement agent |  | $ 64,000 | $ 40,000 |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase of common stock, shares |  | 492,308 | 307,692 |  |  |  |  |  |  |  |  |  |  |  |
Class of warrant or right, exercise price of warrants or rights |  | $ 0.18 | $ 0.13 |  |  |  |  |  |  |  |  |  |  |  |
Warrant expiration term |  | 5 years | 5 years |  |  |  |  |  |  |  |  |  |  |  |
Fair value of warrant issued, per share |  | $ 0.07 | $ 0.10 |  |  |  |  |  |  |  |  |  |  |  |
Debt issuance cost |  | $ 64,348 | $ 64,348 |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  |  |  | $ 21,688 |  | $ 43,375 |  |
Convertible Debt [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, capital shares reserved for future issuance |  |  |  |  |  |  |  |  |  |  | 26,850,670 |  | 26,850,670 |  |
Accredited Investors [Member] | 2016 Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible promissory note |  |  |  |  |  |  |  |  | $ 1,250,000 |  |  |  |  |  |
Percentage of placement agent commission on gross proceeds |  |  |  |  |  |  |  |  | 8.00% |  |  |  |  |  |
Accredited Investors [Member] | 2017 Notes [Member] | Private Placement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible promissory note |  |  |  |  |  |  | $ 2,150,000 |  |  |  |  |  |  |  |
Percentage of placement agent commission on gross proceeds |  |  |  |  |  |  | 8.00% |  |  |  |  |  |  |  |
Accredited Investors [Member] | 2018 Notes [Member] | Private Placement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible promissory note |  | $ 1,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of placement agent commission on gross proceeds |  | 8.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Directors [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued for restricted common stock | 522,729 |  |  | 302,629 |  |  |  |  |  |  |  |  |  |  |
Stock compensation expenses |  |  |  |  |  |  |  |  |  |  | $ 0 | $ 0 | $ 57,500 | $ 57,500 |
Employee [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued for restricted common stock | 272,728 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock compensation expenses | $ 30,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Robert Taglich And Michael Taglich [Member] | 2017 Bridge Note [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase of common stock, shares |  |  |  |  |  | 150,000 |  |  |  |  |  |  |  |  |
Class of warrant or right, exercise price of warrants or rights |  |  |  |  |  | $ 0.30 |  |  |  |  |  |  |  |  |
Warrant expiration term |  |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |
Fair value of warrant issued, per share |  |  |  |  |  | $ 0.26 |  |  |  |  |  |  |  |  |
Debt beneficial interest rate |  |  |  |  |  | 5.00% |  |  |  |  |  |  |  |  |
Debt discount |  |  |  |  |  | $ 38,837 |  |  |  |  |  |  |  |  |

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