Note 17 - Commitments and Contingencies (Detail) - Aggregate Minimum Future Lease Payments Under Capital Leases (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011
2013	$ 690
2014	685
2015	685
2016	685
2017	685
Thereafter	8,387
Total minimum lease payments	11,817
Less amounts representing interest	(5,280)
Present value of minimum payments	6,537
Less current portion	(689)	[1]		[1],[2]
Present value of minimum payments - noncurrent	$ 5,848

[1] The noncurrent portion of the capital lease obligation is recorded in loans payable, financing and capital lease obligations, net of current portion.

[2] 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).