Note 7 - Indebtedness (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Schedule of Long-term Debt Instruments [Table Text Block]

	December 31,
	2016			2015
Equipment loans	$	856		$	1,870
Total long-term debt		856			1,870
Current installments		(856	)		(1,011	)
Long-term debt, excluding current installments	$	-		$	859

Schedule of Maturities of Long-term Debt [Table Text Block]

Year ending December 31:
2017	$	856
	$	856