Note 4 - Prepaid Expenses and Other Current Assets (Tables)

6 Months Ended

Jun. 30, 2018

Notes Tables

Schedule of Prepaid Expenses and Other Current Assets [Table Text Block]

	June 30, 2018		December 31, 2017
Prepaid service invoices	$	76	$	116
Prepaid manufacturing and mold costs		78		-
Prepaid insurance premiums		55		210
Total		209		326