New Accounting Standards Implemented (Details Textual) - USD ($) |
3 Months Ended | 6 Months Ended | |||||
|---|---|---|---|---|---|---|---|
Jan. 02, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Jun. 30, 2017 |
Jun. 30, 2018 |
Jun. 30, 2017 |
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| Revenue from Contract with Customer, Including Assessed Tax | $ 819,000 | $ 217,000 | $ 3,417,000 | $ 403,000 | |||
| Restricted Cash and Cash Equivalents | 560,000 | $ 0 | 0 | 560,000 | 0 | ||
| Grants Receivable | 13,850,000 | 13,850,000 | |||||
| Deferred Revenue, Current | $ 2,612,000 | 0 | 3,214,000 | 0 | |||
| Proceeds From Grant Received | 3,400,000 | $ 800,000 | $ 2,600,000 | ||||
| Royalty [Member] | |||||||
| Revenue from Contract with Customer, Including Assessed Tax | 17,000 | 67,000 | 67,000 | 102,000 | |||
| Grant [Member] | |||||||
| Revenue from Contract with Customer, Including Assessed Tax | $ 802,000 | $ 0 | $ 3,350,000 | $ 0 | |||
| Accounting Standards Update 2014-09 [Member] | |||||||
| Stockholders' Equity, Period Increase (Decrease) | $ 3,700,000 | ||||||
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- Definition Amount proceeds from grant received. No definition available.
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- Definition The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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- Definition Carrying amount as of the balance sheet date of amounts due under the terms of governmental, corporate, or foundation grants. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, 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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The increase (decrease) in stockholders' equity during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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