Note 11 - Business Segment Information (Tables)

3 Months Ended

Mar. 31, 2013

Mar. 31, 2012

Schedule of Segment Reporting Information, by Segment [Table Text Block]

Year Ended	Net Sales		Loss (Income) From Operations			Depreciation and Amortization		Assets
March 31, 2013
Power & Energy Group	$	1,794	$	3,567		$	275	$	62,037
All Other		60		(38	)		19		315
Consolidated Total	$	1,854	$	3,529		$	294	$	62,352
March 31, 2012
Power & Energy Group	$	197	$	4,975		$	251	$	58,560
All Other		60		(41	)		18		391
Consolidated Total	$	257	$	4,934		$	269	$	58,951

Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]

Customer	Sales Three Months Ended March 31, 2013		Accounts Receivable Balance at March 31, 2013
Power and Energy Group:
Vestas	$	1,291	$	179
Stand by Energy			$	94
Alsher Titania LLC			$	60

Customer	Sales Three Months Ended March 31, 2012		Accounts Receivable Balance at March 31, 2012
Power and Energy Group:
Hybricon	$	131
Younicos AG	$	63
Alsher Titania, LLC	$	60	$	60

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]

Geographic information	Sales Three Months Ended 2013		Sales Three Months Ended 2012
Denmark	$	1,291
United States		275		60
Belgium		132
Germany				63
Sweden		43		131
Other foreign countries		113		3
Total	$	1,854	$	257

Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block]

Long-lived assets:	Balance at March 31, 2013		Balance at December 31, 2012
United States	$	7,415	$	6,207
China		13,840		13,625
Total	$	21,255	$	19,832