Note 5 - Fair Value of Financial Instruments (Details) (USD $)	3 Months Ended		9 Months Ended				1 Months Ended	0 Months Ended				1 Months Ended	3 Months Ended		1 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Aug. 29, 2014 OFC Two Senior Secured Notes [Member] Subsidiaries [Member]	Jun. 20, 2014 OFC Two Senior Secured Notes [Member]	Mar. 06, 2014 NGI Swap Contract [Member] mJ	Oct. 16, 2013 NGI Swap Contract [Member] mJ	Sep. 03, 2013 NGI Swap Contract [Member] mJ	Oct. 16, 2013 New York Harbor ULSD Swap Contract [Member] bbl MWh	Aug. 18, 2014 Interest Rate Cap [Member]	Sep. 30, 2014 Interest Rate Cap [Member]	Aug. 13, 2014 Interest Rate Cap [Member]	Sep. 30, 2014 EIG Global Fund II, Ltd. [Member] Subsidiaries [Member]
Note 5 - Fair Value of Financial Instruments (Details) [Line Items]
Derivative, Nonmonetary Notional Amount, Energy Measure (in Millijoules)								2,200,000	4,200,000	4,400,000
Underlying, Derivative Energy Measure (in Dollars per Millijoule)								4.95	4.103	4.035	125.15
Derivative, Nonmonetary Notional Amount, Volume (in Barrels (of Oil))											275,000
Fluctuation in Energy Rate (in Megawatt-hours)											25
Gain (Loss) on Price Risk Derivative Instruments Not Designated as Hedging Instruments	$ 4,000,000	$ (300,000)	$ 1,300,000	$ 1,500,000
Repayments of Long-term Debt			80,223,000	37,480,000			4,300,000								30,000,000
Debt Instrument, Face Amount						140,000,000
Debt Instrument, Interest Rate, Stated Percentage	7.00%		7.00%		7.00%	4.61%
Derivative, Notional Amount														140,000,000
Payments for Derivative Instrument, Financing Activities			1,505,000									1,500,000
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	(933,000)		(933,000)										(900,000)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax			572,000										600,000
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net													(200,000)
Debt Instrument, Repurchased Face Amount															42,000,000
Interest Expense	22,494,000	18,459,000	65,084,000	51,826,000											1,100,000
Prepayment Premium															600,000
Write off of Deferred Debt Issuance Cost															$ 500,000