Note 9 - Business Segments

6 Months Ended

Jun. 30, 2014

Segment Reporting [Abstract]

Segment Reporting Disclosure [Text Block]

NOTE 9 — BUSINESS SEGMENTS

The Company has two reporting segments: Electricity and Product Segments. These segments are managed and reported separately as each offers different products and serves different markets. The Electricity Segment is engaged in the sale of electricity from the Company’s power plants pursuant to PPAs. The Product Segment is engaged in the manufacture, including design and development, of turbines and power units for the supply of electrical energy and in the associated construction of power plants utilizing the power units manufactured by the Company to supply energy from geothermal fields and other alternative energy sources. Transfer prices between the operating segments are determined based on current market values or cost plus markup of the seller’s business segment.

Summarized financial information concerning the Company’s reportable segments is shown in the following tables:

	Electricity		Product		Consolidated
	(Dollars in thousands)
Three Months Ended June 30, 2014:
Net revenues from external customers	$	91,692	$	35,911	$	127,603
Intersegment revenues		—		15,742		15,742
Operating income		9,521		12,809		22,330
Segment assets at period end *		2,027,211		117,718		2,144,929
* Including unconsolidated investments		3,308		—		3,308
Three Months Ended June 30, 2013:
Net revenues from external customers	$	87,713	$	64,966	$	152,679
Intersegment revenues		—		18,821		18,821
Operating income		22,639		15,223		37,862
Segment assets at period end *		2,039,219		98,681		2,137,900
* Including unconsolidated investments		3,524		—		3,524
Six Months Ended June 30, 2014:
Net revenues from external customers	$	186,509	$	83,530	$	270,039
Intersegment revenues		—		36,336		36,336
Operating income		40,439		24,462		64,901
Segment assets at period end *		2,027,211		117,718		2,144,929
* Including unconsolidated investments		3,308		—		3,308
Six Months Ended June 30, 2013:
Net revenues from external customers	$	156,011	$	115,574	$	271,585
Intersegment revenues		—		25,402		25,402
Operating income		21,325		24,221		45,546
Segment assets at period end *		2,039,219		98,681		2,137,900
* Including unconsolidated investments		3,524		—		3,524

          Reconciling information between reportable segments and the Company’s consolidated totals is shown in the following table:

	Three Months Ended June 30,						Six Months Ended June 30,
	2014			2013			2014			2013
	(Dollars in thousands)						(Dollars in thousands)
Operating income	$	22,330		$	37,862		$	64,901		$	45,546
Interest income		90			87			201			128
Interest expense, net		(22,072	)		(17,504	)		(42,590	)		(33,367	)
Foreign currency translation and transaction gains (losses)		(55	)		904			(693	)		2,586
Income attributable to sale of tax benefits		6,130			5,783			12,847			9,315
Gain from sale of property, plant and equipment		7,628			—			7,628			—
Other non-operating income, net		343			29			406			1,446
Total income, before income taxes, discontinued operations and equity in income (losses) of investees	$	14,394		$	27,161		$	42,700		$	25,654