Acquisitions - Additional Information (Detail) (USD $)	0 Months Ended		3 Months Ended												12 Months Ended			0 Months Ended	12 Months Ended	1 Months Ended
	Mar. 05, 2013	Sep. 25, 2012	Dec. 31, 2014	Sep. 30, 2014		Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jun. 01, 2013	Dec. 31, 2011	Apr. 30, 2012	Jun. 04, 2012	Apr. 01, 2012
Business Acquisition [Line Items]
Fair value of earn-out provision			$ 747,000					$ 685,000							$ 747,000	$ 685,000
Customer contracts amortized estimated useful lives															10 years
Amount contributed to the company's net income			1,651,648	(1,479,744)	[1]	(1,428,618)	5,018,491	3,214,810	[2]	(1,004,338)	[3]	(326,916)	[4]	4,787,723	3,761,777	6,671,279	3,719,317
Contingent consideration, current portion			671,638					671,638							671,638	671,638
Purchase of Matchworks Building in Mentor, Ohio	1,900,000
Shares issued to purchase Loring Pipeline																	2,250,004
Additional shares of common stock		210,951
Duration Of Lease Payments															10 years
Station Street 8500 [Member] | Building [Member]
Business Acquisition [Line Items]
Property, plant and equipment amounts															1,607,915
Station Street 8500 [Member] | Land [Member]
Business Acquisition [Line Items]
Property, plant and equipment amounts															244,859
Earn Out Payment [Member]
Business Acquisition [Line Items]
Contingent consideration, current portion			671,638					0							671,638	0
John D. Oil and Gas Marketing [Member]
Business Acquisition [Line Items]
Acquisition cost																		600,000
Number of shares issued for payment																		256,926
Purchase consideration paid																		2,641,199
Fair value of earn-out provision			2,250,000												2,250,000
Business combination estimated current liability for earn out payment			669,396												669,396
Amount allocated to goodwill			2,100,000												2,100,000
Trading days used to calculate earn out payments															20 days
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment			21,600												21,600
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill			2,800,000												2,800,000
Gas Natural Resources , LIc [Member]
Business Acquisition [Line Items]
Contingent earn out payment period																			5 years
Targeted EBITDA amount for contingent earn out payments																			810,432
Earn out payment in case actual EBITDA meets or exceeds target EBITDA															575,000
Amount contributed to the Company's revenues															4,300,000	1,900,000
Amount contributed to the company's net income															99,000	765,000
Loring Pipeline Lease and Related Property [Member]
Business Acquisition [Line Items]
Public Foreclosure Auction Amount																					4,500,000
Lease payments per year															300,000
Shares issued to purchase Loring Pipeline															2,250,000
Annual service fee															120,000
Annual Service Fee Charge															0.0125
Discount rate of present value of the lease payments															90.00%
Present value of the minimum lease payment			2,208,026												2,208,026
Total fair value of all the assets															605,352
Leased Pipeline and Leased Pipeline Easements [Member]
Business Acquisition [Line Items]
Total fair value of all the assets															6,320,000
Public Gas Company, Inc [Member]
Business Acquisition [Line Items]
Amount allocated to Goodwill																	142,971
Percentage of stock purchased																						100.00%
Increase (Decrease) in Deferred Income Taxes																	283,425
Public Gas Company, Inc [Member] | Kentucky [Member]
Business Acquisition [Line Items]
Product delivered to number of customers																						1,600
Cash purchase price of pipeline and rights-of-way assets																				1,600,000
Costs related to the transaction																	$ 51,187

[1] Company classified its Energy West Wyoming subsidiary and Glacier and Shoshone Pipeline Assets as discontinued operations. All prior periods have been restated to match this presentation.

[2] Company recorded a goodwill impairment expense of $0.7 million and an unrealized gain on its contingent consideration liability of $1.6 million.

[3] Company classified its Independence subsidiary as discontinued operations. All prior periods have been restated to match this presentation.

[4] Company recorded a contingent liability of $0.9 million, related to the PUCO’s GCR audit of its Ohio utilities, reducing gross margin.