Note 10 - Accrued Expenses

12 Months Ended

Dec. 31, 2017

Notes to Financial Statements

Accounts Payable and Accrued Liabilities Disclosure [Text Block]

10.

Accrued Expenses

Accrued expenses consist of the following:

	December 31,
	2017		2016
Compensation and related expenses	$	2,893	$	3,089
Facility construction costs		-		804
Research grants		419		463
Clinical trial costs		2,318		227
Professional fees		448		802
Deferred rent		-		231
Other		248		880
Total	$	6,326	$	6,496