Note 1 - Significant Accounting Policies Summary of Operations and Basis of Presentation (Details) - Energy Swap Balances (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
NYMEX Heating Oil Swap [Member]
October to November, 2013 [Member]
Dec. 31, 2012
NYMEX Heating Oil Swap [Member]
May to November 2013 [Member]
Dec. 31, 2013
NYMEX Natural Gas Swap [Member]
April to October, 2014 [Member]
Dec. 31, 2012
NYMEX Natural Gas Swap [Member]
April to October 2013 [Member]
Dec. 31, 2012
Fuel Oil [Member]
May to November 2013 [Member]
Derivative [Line Items]              
Quantity     998,700 Gallons 1,359,782 Gallons 307,374 MMBTUs 381,150 MMBTUs 676,200 Gallons
Price Per Unit (in Dollars per Item)     2.88 2.82 3.67 3.94 2.26
Energy Swap Asset/(Liability) (in Dollars) $ 274,600 $ 134,200 $ 131,400 $ 244,800 $ 143,200 $ (149,600) $ 39,000
Deferred Tax Asset/(Liability) (in Dollars) (96,100) (15,100) (46,000) (53,800) (50,100)   (13,600)
Natural Gas - NYMEX Natural Gas Swap     998,700 Gallons 1,359,782 Gallons 307,374 MMBTUs 381,150 MMBTUs 676,200 Gallons
Natural Gas - NYMEX Natural Gas Swap (in Dollars per Item)     2.88 2.82 3.67 3.94 2.26
Natural Gas - NYMEX Natural Gas Swap (in Dollars) 274,600 134,200 131,400 244,800 143,200 (149,600) 39,000
Natural Gas - NYMEX Natural Gas Swap (in Dollars)           $ 52,300