Note 1 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2015

Accounting Policies [Abstract]

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

	Years ended December 31,
	2015		2014		2013
Non-cash transactions:
Accruals for capital expenditures	$	298	$	358	$	185
Cash paid for interest and income taxes:
Interest (1)	$	178	$	171	$	182
Income taxes, net of refunds received	$	253	$	577	$	469

Property, Plant and Equipment, Estimated Useful Lives [Table Text Block]

Asset type	Range of useful life
Computer hardware and software	3	to	7	years
Manufacturing equipment	2	to	15	years
Furniture and fixtures	5	to	10	years
Transportation equipment	3	to	20	years