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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2017
Accounting Policies [Abstract] |
Schedule of Property Plant And Equipment Useful life | Property and equipment are recorded at cost and depreciated over their estimated useful lives using the straight-line depreciation method as follows:
Leasehold improvement | Shorter of estimated useful lives or the term of the lease
Computer equipment | 2 years*
Machinery and equipment | 5 years*
Furniture and office equipment | 7 years*
*Property and equipment assets acquired in the merger with Moleculin, LLC are being depreciated over a 2 years useful life due to their age and condition and expected remaining life assessed at merger date.
Fair Value Measurements, Recurring and Nonrecurring | The following table provides the financial assets and liabilities reported at fair value and measured on a recurring basis at December 31, 2017 (in thousands):
Description |  | Liabilities Measured at Fair Value |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Other Unobservable Inputs (Level 3)
Fair value of warrant liability: |  |  |  |  |  |  |  |  |  |  |  |
2017 |  | $ | 503 |  |  | $ | — |  |  | $ | — |  |  | $ | 503 |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation |
The following table provides a summary of changes in fair value associated with the Level 3 liabilities for the year ended December 31, 2017 (in thousands):
| Warrant Liability – Current |  | Warrant Liability – Long-Term |  | Warrant Liability – Total
Balance, beginning of period December 31, 2016 | $ | — |  |  | $ | — |  |  | $ | — |
Issuances of warrants | 2,453 |  |  | 1,690 |  |  | 4,143 |
Reclass of liability from long-term to current | 1,846 |  |  | (1,846 | ) |  | — |
Change in fair value - net | 2,643 |  |  | (95 | ) |  | 2,548 |
Transfers in and out (exercise of warrants) | (5,201 | ) |  | 251 |  |  | (4,950 | )
Expiration of warrants | (1,238 | ) |  | — |  |  | (1,238 | )
Balance, December 31, 2017 | $ | 503 |  |  | $ | — |  |  | $ | 503 |

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- Definition Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19279-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2C -URI http://asc.fasb.org/extlink&oid=66048111&loc=SL7498348-110258 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258 + Details
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- Definition Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19279-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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