Note 8 - Property, Plant and Equipment (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Note 8 - Property, Plant and Equipment (Details) [Line Items]
Property, Plant and Equipment, Net	$ 18,257,000		$ 18,257,000		$ 18,754,000
Capital Leased Assets, Gross	6,300,000		6,300,000		6,300,000
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	300,000		300,000		300,000
Depreciation	300,000	300,000	846,000	831,000
PV Solar Systems_Aerojet 1 [Member]
Note 8 - Property, Plant and Equipment (Details) [Line Items]
Property, Plant and Equipment, Net	$ 14,900,000		$ 14,900,000