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Note 11 - Accrued Expenses | 12 Months Ended
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Dec. 31, 2018
Notes to Financial Statements |
Accounts Payable and Accrued Liabilities Disclosure [Text Block] | 11. Accrued Expenses Accrued expenses consist of the following:
|  | December 31,
|  | 2018 |  | 2017
Compensation and related expenses |  | $ | 4,446 |  |  | $ | 2,893 |
Professional fees |  |  | 1,989 |  |  |  | 448 |
Voluntary recall |  |  | 116 |  |  |  | - |
Research grants |  |  | 400 |  |  |  | 419 |
Clinical trial costs |  |  | 577 |  |  |  | 2,318 |
Income taxes payable |  |  | 385 |  |  |  | - |
Other |  |  | 233 |  |  |  | 248 |
Total |  | $ | 8,146 |  |  | $ | 6,326 |
Included in Compensation and related expenses as of December 31, 2018 are the accrued and unpaid costs related to the retirement of the Company’s former Chief Executive Officer as of March 9, 2018. On March 8, 2018 the Company entered into a $0.3 million one -year, post-retirement consulting agreement with the former Chief Executive Officer to provide certain services as may be requested by the Company through February 28, 2019. On the same date, the Company and the former Chief Executive Officer entered into a release agreement related to terms in his employment agreement. Under the terms of these agreements, the former Chief Executive Officer is entitled to receive from the Company, as a result of his retirement, aggregate benefits of $1.7 million over the 18 -month period subsequent to March 9, 2018, among other benefits. As more fully described in Note 13, all of the former Chief Executive Officer’s outstanding equity awards vested in full and became exercisable upon his retirement. Accrued liabilities related to the previously-described product recall of certain production lots of the Company’s HYAFF-based products, more fully described in Note 3, includes an accrual as of December 31, 2018 of $0.1 million of expenses associated with the administration and remediation of the voluntary recall.

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- Definition The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a),20,24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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