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Note 10 - Accrued Expenses - Accrued Expenses (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Compensation and related expenses $ 3,089 $ 3,082
Facility construction costs 804 415
Research grants 463 381
Clinical trial costs 227 252
Professional fees 802 210
Deferred Rent 231
Other 880 438
Total $ 6,496 $ 4,778