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Note 1 - Significant Accounting Policies Summary of Operations and Basis of Presentation (Details) - Energy Swap Balances (USD $)
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12 Months Ended | ||||||
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2013
NYMEX Heating Oil Swap [Member]
October to November, 2013 [Member]
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Dec. 31, 2012
NYMEX Heating Oil Swap [Member]
May to November 2013 [Member]
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Dec. 31, 2013
NYMEX Natural Gas Swap [Member]
April to October, 2014 [Member]
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Dec. 31, 2012
NYMEX Natural Gas Swap [Member]
April to October 2013 [Member]
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Dec. 31, 2012
Fuel Oil [Member]
May to November 2013 [Member]
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| 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 | ||||||