Business (Details) - USD ($) |
1 Months Ended | 3 Months Ended | 6 Months Ended | |||||
|---|---|---|---|---|---|---|---|---|
Aug. 14, 2017 |
Apr. 30, 2017 |
Jun. 30, 2017 |
Jun. 30, 2016 |
Jun. 30, 2017 |
Jun. 30, 2016 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | ||||||||
| Net loss | $ 1,798,515 | $ 3,524,160 | $ 3,759,152 | $ 8,664,174 | ||||
| Negative cash flows from operations | 3,997,720 | 7,426,226 | ||||||
| Accumulated deficit | 73,794,235 | 73,794,235 | $ 70,035,083 | |||||
| Cash and cash equivalents | $ 5,460,699 | $ 11,879,545 | 5,460,699 | 11,879,545 | $ 5,127,958 | $ 21,161,967 | ||
| Subsidiary, Sale of Stock [Line Items] | ||||||||
| Proceeds from sale of shares under common stock purchase agreements | $ 5,000,000 | $ 4,650,000 | $ 0 | |||||
| Subsequent Event | ||||||||
| Subsidiary, Sale of Stock [Line Items] | ||||||||
| Proceeds from definitive agreement for the assignment of CERC 501 | $ 25,000,000 | |||||||
| Portion of proceeds deposited in escrow | $ 3,750,000 | |||||||
| Escrow deposit, term | 12 months | |||||||
| X | ||||||||||
- Definition Escrow Deposit, Term No definition available.
|
| X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Cash received from licensees for license fees during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
|