Note 10 - Property, Plant and Equipment (Detail) - Property, Plant and Equipment (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Property plant and equipment, gross	$ 22,843	$ 18,287	[1]
Less: accumulated depreciation	(4,089)	(4,206)	[1]
	18,754	14,081	[1],[2]
PV Solar System [Member]
Property plant and equipment, gross	20,783	14,852	[1]
Plant and Machinery [Member]
Property plant and equipment, gross	33	740	[1]
Furniture and Fixtures [Member]
Property plant and equipment, gross	388	466	[1]
Computer Equipment [Member]
Property plant and equipment, gross	1,499	1,606	[1]
Trucks [Member]
Property plant and equipment, gross	44	118	[1]
Leasehold Improvements [Member]
Property plant and equipment, gross	$ 96	$ 505	[1]

[1] As recast to reflect the balances of SGT beginning January 1, 2011 combined with the balances of Solar Power, Inc. beginning March 31, 2011, as required under the accounting guidelines for a transfer of an entity under common control (refer to Note 5 -Acquisition of Solar Green Technology).

[2] As recast to reflect the balances of Solar Green Technology S.p.A. ("SGT") beginning January 1, 2011 combined with the balances of Solar Power, Inc. beginning March 31, 2011, as required under the accounting guidelines for a transfer of an entity under common control (refer to Note 5 -Acquisition of Solar Green Technology).