Consolidated Statements of Stockholders' Equity (USD $) In Thousands, except Share data		Preferred Stock [Member]		Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance December 31, 2010 As Recast (1) at Dec. 31, 2010	[1]			$ 1,325		$ (8)		$ 1,317
Balance December 31, 2010 As Recast (1) (in Shares) at Dec. 31, 2010	[1]			1,000
Net income (loss)						1,606		1,606	[1],[2],[3],[4]
Foreign currency translation adjustments	[1]						(177)	(177)	[3]
Removal of SGT common stock amount upon combination with Solar Power, Inc.				(1,325)				(1,325)
Removal of SGT common stock amount upon combination with Solar Power, Inc. (in Shares)				(1,000)
Transfer of entity under common control (Note 5)		2		10	47,474			47,486
Transfer of entity under common control (Note 5) (in Shares)		20,000,000		95,104,000
Conversion of preferred stock to common stock		(2)		8	(6)
Conversion of preferred stock to common stock (in Shares)		(20,000,000)		88,910,000
Issuance of restricted stock, value					192			192
Issuance of restricted stock, shares (in Shares)				400,000
Stock-based compensation expense					269			269
Ending balance at Dec. 31, 2011				18	47,929	1,598	(177)	49,368	[1]
Ending balance, shares (in Shares) at Dec. 31, 2011			[1]	184,414,000
Net income (loss)						(25,428)		(25,428)
Foreign currency translation adjustments							(110)	(110)
Issuance of restricted stock, value					106			106
Issuance of restricted stock, shares (in Shares)				400,000
Issuance of common stock to acquire Solar Green Technology (See Note 5)				2	(253)			(251)
Issuance of common stock to acquire Solar Green Technology (See Note 5) (in Shares)				13,401,000
Issuance of warrants for financing					88			88
Stock-based compensation expense					349			349
Ending balance at Dec. 31, 2012				$ 20	$ 48,219	$ (23,830)	$ (287)	$ 24,122
Ending balance, shares (in Shares) at Dec. 31, 2012				198,215,000				198,214,456

[1] 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).

[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 ).

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

[4] As recast to reflect the activity 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 ).