| Accounting Policies, by Policy (Policies) | 6 Months Ended |
| Jun. 30, 2014 |
| Accounting Policies [Abstract] | ' |
| Cash and Cash Equivalents, Policy [Policy Text Block] | ' |
| Cash and Cash Equivalents |
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| The Company considers all highly liquid instruments purchased with an original maturity of three months or less to be cash equivalents. The Company continually monitors its positions with, and the credit quality of, the financial institutions with which it invests. |
| Trade and Other Accounts Receivable, Policy [Policy Text Block] | ' |
| Accounts Receivable |
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| Accounts receivable are stated at the amount billed to customers. The Company provides a reserve for doubtful accounts based on a review of outstanding receivables, historical collection information and existing economic conditions. The provision for uncollectible amounts is continually reviewed and adjusted to maintain the allowance at a level considered adequate to cover future losses. The allowance is management's best estimate of uncollectible amounts and is determined based on historical collection experience related to accounts receivable coupled with a review of the current status of existing receivables. The losses ultimately incurred could differ materially in the near term from the amounts estimated in determining the allowance. As of June 30, 2014 and December 31, 2013, the Company had an allowance for doubtful accounts of $295,000 and $245,000, respectively. For the three and six months ended June 30, 2014, the Company recorded bad debt expense (net of recoveries) of $40,000 and $50,000, respectively. For the three and six months ended June 30, 2013, the Company recorded bad debt expense (net of recoveries) of $44,163 and $170,397, respectively. |
| Inventory, Policy [Policy Text Block] | ' |
| Inventory |
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| Inventory consists primarily of propane, diesel fuel and chemicals used in the servicing of oil wells and is carried at the lower of cost or market in accordance with the first in, first out method. The Company periodically reviews the value of items in inventory and provides write-downs or write-offs of inventory based on its assessment of market conditions. Write-downs and write-offs are charged to cost of goods sold. |
| Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] | ' |
| Long-Lived Assets |
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| The Company reviews its long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recovered. The Company looks primarily to the undiscounted future cash flows in its assessment of whether or not long-lived assets have been impaired. No impairments were recorded during the three and six month periods ended June 30, 2014 and 2013. |
| Property, Plant and Equipment, Policy [Policy Text Block] | ' |
| Property and Equipment |
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| Property and equipment consists of (1) trucks, trailers and pickups; (2) trucks that are in various stages of fabrication; (3) real property which includes land and buildings used for office and shop facilities and wells used for the disposal of water; and (4) other equipment such as tools used for maintaining and repairing vehicles, office furniture and fixtures, and computer equipment. Property and equipment is stated at cost less accumulated depreciation. The Company charges repairs and maintenance against income when incurred and capitalizes renewals and betterments, which extend the remaining useful life or expands the capacity or efficiency of the assets. Depreciation is recorded on a straight-line basis over estimated useful lives of 5 to 30 years. |
| Lease, Policy [Policy Text Block] | ' |
| Leases |
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| The Company conducts a major part of its operations from leased facilities. Each of these leases is accounted for as an operating lease. Normally, the Company records rental expense on its operating leases over the lease term as it becomes payable. If rental payments are not made on a straight-line basis, in accordance with the terms of the agreement, the Company records a deferred rent expense and recognizes the rental expense on a straight-line basis throughout the lease term. The majority of the Company’s facility leases contain renewal clauses and expire through August 2017. In most cases, management expects that in the normal course of business, leases will be renewed or replaced by other leases. |
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| The Company is leasing a number of trucks and equipment in the normal course of business, which are recorded as operating leases. The Company records rental expense on its equipment operating leases over the lease term as it becomes payable; there are no rent escalation terms associated with these equipment leases. On a number of the equipment leases, purchase options exist allowing the Company to purchase the leased equipment at the end of the lease term, based on the market price of the equipment at the time of the lease termination and exercised purchase option. |
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| The Company has also in the past entered into several capital leases in order to acquire trucks and equipment. Each of these leases allow the Company to retain title of the equipment leased through the lease agreements upon final payment of all principal and interest due. The Company records the assets and liabilities associated with these leases at the present value of the minimum lease payments per the lease agreement. The assets are classified as property and equipment and the liabilities are classified as current and long-term liabilities based on the contractual terms of the agreements and their associated maturities. There are no outstanding capital leases as of June 30, 2014. |
| Revenue Recognition, Policy [Policy Text Block] | ' |
| Revenue Recognition |
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| The Company recognizes revenue when evidence of an arrangement exists, the fee is fixed and determinable, services are provided, and collection is reasonably assured. |
| Earnings Per Share, Policy [Policy Text Block] | ' |
| Earnings Per Share |
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| Earnings per share is computed by dividing net income by the weighted average number of common shares outstanding for the period. Diluted earnings per share is calculated by dividing net income by the diluted weighted average number of common shares. The diluted weighted average number of common shares is computed using the treasury stock method for common stock that may be issued for outstanding stock options. |
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| As of June 30, 2014 and 2013, there were outstanding stock options and warrants to acquire an aggregate of 3,917,063 and 8,867,226 shares of Company common stock, respectively, which have a potentially dilutive impact on earnings per share. For the six months ended June 30, 2014, the incremental shares of the options and warrants to be included in the calculation of diluted earnings per share had a dilutive impact on the Company’s earnings per share of 2,466,052 shares. Dilution is not permitted if there are net losses during the period. As such, the Company does not show dilutive earnings per share for the three months ended June 30, 2014. For the three and six months ended June 30, 2013, the incremental shares of the options and warrants to be included in the calculation of diluted earnings per share had a dilutive impact on the Company’s earnings per share of 3,589,220 and 3,444,113 shares, respectively. |
| Goodwill and Intangible Assets, Policy [Policy Text Block] | ' |
| Intangible Assets |
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| Non-Competition Agreements. The non-competition agreements with the sellers of Heat Waves and Dillco have finite lives and were being amortized over a five-year period. All non-competition agreements were fully amortized as of June 30, 2013. Amortization expense for the three and six months ended June 30, 2013 totaled $15,000 and $30,000, respectively. |
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| Goodwill. Goodwill represents the excess of the cost over the fair value of net assets acquired, including identified intangible assets, recorded in connection with the acquisitions of Heat Waves. Goodwill is not amortized but is assessed for impairment at least annually. |
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| Impairment. The Company assesses goodwill for impairment at the reporting unit level on an annual basis and between annual tests if events occur or circumstances change that would more likely than not reduce the fair value below its carrying amount. Guidance allows a qualitative assessment of impairment to determine whether it is more-likely-than-not that goodwill is impaired. If it is determined that it is more-likely-than-not that an impairment exists, accounting guidance requires that the impairment test be performed through the application of a two-step fair value test. The Company utilizes this method and recognizes a goodwill impairment loss in the event that the fair value of the reporting unit does not exceed its carrying value. During fiscal year ended December 31, 2013, the Company performed the annual impairment test and determined that no impairment existed. For the three and six month periods ended June 30, 2014 and 2013, the Company did not note any events that occurred, nor did any circumstances change, that would require goodwill to be assessed for impairment. |
| Loan Fees and Other Deferred Costs [Policy Text Block] | ' |
| Loan Fees and Other Deferred Costs |
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| In the normal course of business, the Company enters into loan agreements with its primary lending institutions. The majority of these lending agreements require origination fees and other fees in the course of executing the agreements. For all costs associated with the execution of the lending agreements, the Company recognizes these as capitalized costs and amortizes these costs over the term of the loan agreement using the effective interest method. These deferred costs are classified on the balance sheet as current or long-term assets based on the contractual terms of the loan agreements. All other costs not associated with the execution of the loan agreements are expensed as incurred. |
| Income Tax, Policy [Policy Text Block] | ' |
| Income Taxes |
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| The Company recognizes deferred tax liabilities and assets based on the differences between the tax basis of assets and liabilities and their reported amounts in the financial statements that will result in taxable or deductible amounts in future years. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect of a change in tax rates on deferred tax assets and liabilities will be recognized in income in the period that includes the enactment date. Deferred income taxes are classified as a net current or non-current asset or liability based on the classification of the related asset or liability for financial reporting purposes. A deferred tax asset or liability that is not related to an asset or liability for financial reporting is classified according to the expected reversal date. The Company records a valuation allowance to reduce deferred tax assets to an amount that it believes is more likely than not expected to be realized. |
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| The Company accounts for any uncertainty in income taxes by recognizing the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The Company measures the tax benefits recognized in the financial statements from such a position based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate resolution. The application of income tax law is inherently complex. Laws and regulations in this area are voluminous and are often ambiguous. As such, the Company is required to make many subjective assumptions and judgments regarding income tax exposures. Interpretations of and guidance surrounding income tax law and regulations change over time and may result in changes to the Company’s subjective assumptions and judgments which can materially affect amounts recognized in the consolidated balance sheets and consolidated statements of income. The result of the reassessment of the Company’s tax positions did not have an impact on the consolidated financial statements. |
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| Interest and penalties associated with tax positions are recorded in the period assessed as general and administrative expenses. No interest or penalties have been assessed as of June 30, 2014. The Company files tax returns in the United States and in the states in which it conducts its business operations. The tax years 2010 through 2013 remain open to examination in the taxing jurisdictions to which the Company is subject. |
| Fair Value of Financial Instruments, Policy [Policy Text Block] | ' |
| Fair Value |
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| The Company follows authoritative guidance that applies to all financial assets and liabilities required to be measured and reported on a fair value basis. The Company also applies the guidance to non-financial assets and liabilities measured at fair value on a nonrecurring basis, including non-competition agreements and goodwill. The guidance defines fair value as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants at the measurement date. The guidance establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. |
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| Observable inputs are inputs that market participants would use in pricing the asset or liability developed based on market data obtained from sources independent of the Company. Unobservable inputs are inputs that reflect the Company’s assumptions of what market participants would use in pricing the asset or liability based on the best information available in the circumstances. The Company did not change its valuation techniques nor were there any transfers between hierarchy levels during the six months ended June 30, 2014. The financial and nonfinancial assets and liabilities are classified based on the lowest level of input that is significant to the fair value measurement. |
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| The hierarchy is broken down into three levels based on the reliability of the inputs as follows: |
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| Level 1: | Quoted prices are available in active markets for identical assets or liabilities; |
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| Level 2: | Quoted prices in active markets for similar assets and liabilities that are observable for the asset or liability; or |
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| Level 3: | Unobservable pricing inputs that are generally less observable from objective sources, such as discounted cash flow models or valuations. |
| Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] | ' |
| Stock-based Compensation |
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| The Company uses the Black-Scholes pricing model as a method for determining the estimated fair value for all stock options awarded to employees, officers, and directors. The expected term of the options is based upon evaluation of historical and expected further exercise behavior. The risk-free interest rate is based upon U.S. Treasury rates at the date of grant with maturity dates approximately equal to the expected life of the grant. Volatility is determined upon historical volatility of our stock and adjusted if future volatility is expected to vary from historical experience. The dividend yield is assumed to be none as we have not paid dividends nor do we anticipate paying any dividends in the foreseeable future. |
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| The Company also uses the Black-Scholes valuation model to determine the fair value of warrants. Expected volatility is based upon the weighted average of historical volatility over the contractual term of the warrant and implied volatility. The risk-free interest rate is based upon implied yield on a U.S. Treasury zero-coupon issue with a remaining term equal to the contractual term of the warrants. The dividend yield is assumed to be none. |
| Use of Estimates, Policy [Policy Text Block] | ' |
| Management Estimates |
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| The preparation of the Company’s financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. |
| New Accounting Pronouncements, Policy [Policy Text Block] | ' |
| Accounting Pronouncements |
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| Recently Issued |
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| In April 2014, the FASB issued ASU No. 2014-08, “Reporting Discontinued Operations and Disclosures of Disposals of a Component of an Entity.” ASU 2014-08 changes the criteria for reporting discontinued operations and requires new disclosures for discontinued operations and certain other disposals that do not meet the definition of a discontinued operation. This pronouncement is effective for fiscal years, and interim periods within those years, beginning on or after December 15, 2014. Other than the additional presentation and disclosure requirements, the adoption of this guidance is not expected to have an effect on the Company’s consolidated financial position, results of operations, or cash flows. |
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| In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The new standard is effective as of the first interim period within annual reporting periods beginning on or after December 15, 2016, and will replace most existing revenue recognition guidance in U.S. GAAP. The standard permits the use of either the retrospective or cumulative effect transition method. The Company is evaluating the effect that ASU 2014-09 will have on its consolidated financial statements and related disclosures. The Company has not yet selected a transition method or determined the effect of the standard on its financial position, results of operations, cash flows, or presentation thereof. |
