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Note 7 - Accrued Expenses and Other Current Liabilities (Tables)

6 Months Ended

Jun. 30, 2017

Notes Tables

Schedule of Accrued Liabilities and Other Current Liabilities [Table Text Block]

		June 30, 2017				December 31, 2016
Accrued expenses		$	406				478
Accrued clinical trial costs			126				—
Grant liability			269				304
Customer deposits			63				66
Total		$	864				848

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