Fair value measurements (Schedule of Liabilities Measured at Fair Value Recurring Basis) (Details) |
Mar. 31, 2019
USD ($)
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|---|---|
| Liablities: | |
| Senior secured convertible notes | $ 7,975,308 |
| Warrant liability | 5,322,162 |
| Fair Value, Inputs, Level 1 [Member] | |
| Liablities: | |
| Senior secured convertible notes | |
| Warrant liability | |
| Fair Value, Inputs, Level 2 [Member] | |
| Liablities: | |
| Senior secured convertible notes | |
| Warrant liability | |
| Fair Value, Inputs, Level 3 [Member] | |
| Liablities: | |
| Senior secured convertible notes | 7,975,308 |
| Warrant liability | $ 5,322,162 |
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- Definition Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock. No definition available.
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- References No definition available.
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- Definition Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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