Note 8 - Accounts and Notes Receivable (Details) (USD $)	12 Months Ended					3 Months Ended	4 Months Ended	12 Months Ended		12 Months Ended	3 Months Ended			12 Months Ended								1 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2013 Sale of Greece Project [Member]	Mar. 31, 2013 Sale of Greece Project [Member] Completed Contract Method [Member]	Sep. 30, 2013 Sale of Greece Project [Member] Completed Contract Method [Member]	Dec. 31, 2013 Sale of Greece Project [Member] Completed Contract Method [Member]	Dec. 31, 2013 Second Unrealated Customer [Member]	Dec. 31, 2013 Second Unrealated Customer [Member] Expected Collection Period [Member]	Jun. 30, 2013 Second Unrealated Customer [Member] Expected Collection Period [Member]	Dec. 31, 2013 EPC Contract [Member]	Dec. 31, 2012 EPC Contract [Member]	Dec. 31, 2013 Exchange and Release Agreement [Member] KDC Solar RTC, LLC [Member] London Interbank Offered Rate (LIBOR) [Member]	Dec. 31, 2013 Exchange and Release Agreement [Member] KDC Solar RTC, LLC [Member]	Dec. 31, 2012 Exchange and Release Agreement [Member] KDC Solar RTC, LLC [Member]	Dec. 31, 2013 Solar Hub Utilities, LLC [Member]	Mar. 31, 2013 Solar Hub Utilities, LLC [Member]	Dec. 31, 2012 Solar Hub Utilities, LLC [Member]	Apr. 27, 2012 Solar Hub Utilities, LLC [Member]	Jun. 08, 2012 Solar Hub Utilities, LLC [Member] Maximum [Member]	Dec. 31, 2013 Mountain Creek Project [Member] Exchange and Release Agreement [Member] KDC Solar RTC, LLC [Member]
Note 8 - Accounts and Notes Receivable (Details) [Line Items]
Revenues	$ 42,629,000	[1]	$ 99,956,000	[1]		$ 1,800,000	$ 13,900,000	$ 13,900,000
Increase (Decrease) in Accounts Receivable	(11,491,000)		(27,077,000)		8,800,000
Accounts Receivable Extended Collection Period					6 years
Accrued Liabilities, Current	741,000		6,536,000		5,100,000
Accounts Receivable, Net, Current	6,260,000		43,807,000		2,200,000				2,000,000
Accounts Receivable, Net, Noncurrent	12,349,000				6,600,000				5,800,000
Reclassifcation of Account Receivable from Current to Noncurrent											5,900,000
Accounts Receivable, Collection Term										1 year					15 years
Note Receivable, Interest Rate												5.00%						10.00%		6.00%
Financing Receivable, Net	8,450,000		14,120,000									0	7,000,000		15,000,000		8,400,000		7,100,000
Debt Instrument, Basis Spread on Variable Rate														4.60%
Percent Ownership of Counterparty in Exchange for Note Receivable Due																						64.50%
Notes, Loans and Financing Receivable, Net, Noncurrent	13,668,000														13,600,000	0
Financing Receivable, Gross																				$ 1,000,000	$ 9,000,000

[1] Sales are attributed to countries based on location of customer.