Held for Sale - Major Classes of Asset and Liabilities (Detail) - USD ($)	Sep. 30, 2015	Dec. 31, 2014
Current Assets:
Total current assets	$ 0	$ 11,653,934
Disposal Group, Held-for-sale, Not Discontinued Operations [Member]
Current Assets:
Accounts receivable, net	161,007	49,069
Unbilled gas	31,928	22,151
Inventory	42,216	3,622
Prepayments and other	27,469	5,401
Regulatory assets, current	3,077	203,241
Total current assets	265,697	283,484
Non-Current Assets:
Property, plant & equipment, net	3,267,908	407,247
Goodwill	111,706	111,705
Other assets	1,937	0
Total non-current assets	3,381,551	518,952
Total assets held for sale	3,647,248	802,436
Liabilities Held For Sale [Member]
Current Liabilities:
Accounts payable	56,247	36,184
Accrued liabilities	65,318	21,632
Customer deposits	111,475	0
Other current liabilities	29,473	3,600
Total liabilities held for sale	$ 262,513	$ 61,416