Fair value of financial instruments - Additional information (Details) - USD ($) |
3 Months Ended | 9 Months Ended | 12 Months Ended | |||
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Jun. 22, 2019 |
Sep. 30, 2019 |
Sep. 30, 2019 |
Dec. 31, 2018 |
Mar. 31, 2019 |
Jun. 28, 2018 |
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| Gain related to increase in fair value | $ 586,000 | |||||
| Warrants and Rights Outstanding | $ 215,000 | $ 0.3725 | ||||
| Unrealized Gain Loss on Investments in warrants | $ 55,000 | |||||
| Proceeds from Issuance of Warrants | $ 215,000 | $ 67,000 | ||||
| Convertible Notes Payable, Current | $ 837,317 | $ 1,000,000 | ||||
| Investment in Warrants [Member] | ||||||
| Proceeds from Issuance of Warrants | $ 152,000 |
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- Definition Carrying value as of the balance sheet date of the portion of long-term debt due within one year or the operating cycle if longer identified as Convertible Notes Payable. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Total amount of gain (loss) derived from fair value hedges recognized in earnings in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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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- Definition Represents gain arises from fair value change on investments in warrants. No definition available.
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- Details
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