Note 2 - Going Concern Considerations and Management's Plan (Detail) (USD $)	0 Months Ended	12 Months Ended				6 Months Ended					0 Months Ended	12 Months Ended			12 Months Ended
	Jun. 22, 2011	Dec. 31, 2012	Dec. 31, 2011		Dec. 31, 2012 Extended Line of Credit [Member] Cathay Bank [Member]	Jun. 30, 2013 Line of Credit [Member] Cathay Bank [Member]	Dec. 31, 2012 Line of Credit [Member] Cathay Bank [Member]	Dec. 31, 2012 US and Greet Project Solar Panel Purchases [Member] LDK [Member]	Dec. 31, 2012 Italian Solar Development Projects Solar Panel Purchases [Member] LDK [Member]	Dec. 31, 2012 Past Due [Member] LDK [Member]	Jun. 22, 2011 LDK [Member]	Dec. 31, 2012 LDK [Member]	Dec. 31, 2011 LDK [Member]	Dec. 31, 2012 Cathay Bank [Member]	Dec. 31, 2012 Minimum [Member]	Dec. 31, 2012 Maximum [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		$ (25,428,000)	$ 1,606,000	[1],[2],[3],[4]
Retained Earnings (Accumulated Deficit)		(23,830,000)	1,598,000	[1]
Working Capital		22,400,000	61,100,000
Working Capital		22,400,000	61,100,000
Percentage of Common Stock Outstanding Owned by Parent Company	71.00%	71.00%									71.00%
Line of Credit Facility, Maximum Borrowing Capacity					9,000,000
Line of Credit Facility, Percentage of Amount Outstanding to be Extended					70.00%
Line of Credit Facility, Amount Outstanding (in Dollars)														7,000,000
Debt Instrument, Basis Spread on Variable Rate							2.00%
Debt Instrument, Floor Rate							6.00%
Debt Instrument, Periodic Payment						500,000
Due to Related Parties								$ 38,900,000	$ 12,600,000	$ 26,000,000		$ 51,800,000	$ 62,200,000
Due to Related Parties, Payment Term												4 months
Accounts Receivable, Collection Term															9 months	12 months

[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 ).