Note 7 - Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013
Note 7 - Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts (Details) [Line Items]
Revenues	$ 91,642	[1]	$ 42,629	[1]
Three EPC Projects [Member]
Note 7 - Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts (Details) [Line Items]
Revenues	$ 75,395

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