CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (Parentheticals) - USD ($) |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
Mar. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Preferred stock issuance costs | $ 9,122 | ||
| Emerald financing issuance costs | 154,092 | 154,092 | |
| Convertible multi-draw credit agreement issuance costs | 53,707 | ||
| Value of warrants issued to purchase shares of common stock for consulting services | $ 30,000 | ||
| Preferred deemed dividend | 1,044,000 | ||
| Proceeds from convertible issuance costs | $ 9,301 | ||
| Series D Preferred Stock | |||
| Preferred deemed dividend | 536,000 | ||
| Series F Preferred stock | |||
| Preferred deemed dividend | 333,000 | ||
| Series C Preferred Stock | |||
| Preferred deemed dividend | $ 175,000 | ||
| X | ||||||||||
- Definition Amount of convertible multi-draw credit agreement issuance costs. No definition available.
|
| X | ||||||||||
- Definition Cost incurred for Emerald Financing, issuance. No definition available.
|
| X | ||||||||||
- Definition Adjustment for noncash service expenses paid for by granting of warrants. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The cash outflow for cost incurred directly with the issuance of an equity security. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Dividends paid to preferred stock holders that is redeemable solely at the option of the issuer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|