Prepaid Expenses And Other Current Assets (Schedule Of Prepaid Expenses And Other Current Assets) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Prepaid Expenses And Other Current Assets [Abstract]
Prepaid expenses	$ 540,134us-gaap_PrepaidExpenseCurrent	$ 679,740us-gaap_PrepaidExpenseCurrent
Deferred financing costs	436,593us-gaap_UnamortizedDebtIssuanceExpense	492,385us-gaap_UnamortizedDebtIssuanceExpense
Deposits	322,959us-gaap_DepositsAssetsCurrent	311,562us-gaap_DepositsAssetsCurrent
Total prepaid expenses and other assets	1,299,686us-gaap_PrepaidExpenseAndOtherAssets	1,483,687us-gaap_PrepaidExpenseAndOtherAssets
Less: Noncurrent prepaid expenses and other assets	(352,867)	(388,850)
Total prepaid expenses and other current assets	$ 946,819	$ 1,094,837

Carrying value of amounts transferred to third parties for security purposes that are expected to be returned or applied towards payment within one year or during the operating cycle, if shorter.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

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-Section S99

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Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets.

+ References

No definition available.

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Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Regulation S-X (SX)

-Number 210

-Section 02

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Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed after one year or the normal operating cycle, if longer.

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Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Current Assets

-URI http://asc.fasb.org/extlink&oid=6509628

Reference 2: http://www.xbrl.org/2003/role/presentationRef

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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