Enservco (ENSV) 10-Q 12 May 16 2016 Q1 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2016	May. 05, 2016
Entity Registrant Name	Enservco Corporation
Entity Central Index Key	319,458
Trading Symbol	ensv
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Common Stock, Shares Outstanding (in shares)		38,130,160
Document Type	10-Q
Document Period End Date	Mar. 31, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q1
Amendment Flag	false

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Current Assets
Cash and cash equivalents	$ 1,588,779	$ 804,737
Accounts receivable, net	3,765,056	7,037,419
Prepaid expenses and other current assets	1,062,465	1,072,479
Inventories	295,978	308,297
Income tax receivable	237,055	222,447
Total current assets	6,949,333	9,445,379
Property and Equipment, net	39,251,365	36,494,661
Goodwill	301,087	301,087
Other Assets	180,730	180,730
TOTAL ASSETS	46,682,515	46,421,857
Current Liabilities
Accounts payable and accrued liabilities	2,401,258	3,039,859
Current portion of long-term debt	387,751	314,263
Total current liabilities	2,789,009	3,354,122
Long-Term Liabilities
Senior revolving credit facility, net of unamortized deferred loan costs of $547,299 and $532,870, respectively	22,600,423	20,173,371
Long-term debt, less current portion	481,488	590,505
Deferred income taxes, net	3,848,201	4,417,043
Total long-term liabilities	26,930,112	25,180,919
Total liabilities	$ 29,719,121	$ 28,535,041
Commitments and Contingencies (Note 8)
Stockholders’ Equity
Preferred stock. $.005 par value, 10,000,000 shares authorized, no shares issued or outstanding
Common stock. $.005 par value, 100,000,000 shares authorized, 38,233,760 and 38,230,729 shares issued, respectively; 103,600 shares of treasury stock; and 38,130,160 and 38,127,129 shares outstanding, respectively	$ 190,650	$ 190,634
Additional paid-in-capital	14,004,694	13,852,563
Accumulated earnings	2,768,050	3,843,619
Total stockholders’ equity	16,963,394	17,886,816
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 46,682,515	$ 46,421,857

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Unamortized deferred loan costs	$ 547,299	$ 532,870
Preferred stock, par value (in dollars per share)	$ 0.005	$ 0.005
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.005	$ 0.005
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	38,233,760	38,230,729
Treasury stock, shares (in shares)	103,600	103,600
Common stock, shares outstanding (in shares)	38,130,160	38,127,129

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenues	$ 8,307,059	$ 19,139,497
Cost of Revenue	6,770,085	11,264,286
Gross Profit	1,536,974	7,875,211
Operating Expenses
General and administrative expenses	1,026,575	1,220,353
Patent litigation and defense costs	36,166	339,017
Depreciation and amortization	1,747,972	1,322,934
Total operating expenses	2,810,713	2,882,304
Income (Loss) from Operations	(1,273,739)	4,992,907
Other Income (Expense)
Interest expense	(372,668)	(253,210)
Other income	1,996	6,900
Total other expense	(370,672)	(246,310)
Income (Loss) Before Tax Expense	(1,644,411)	4,746,597
Income Tax Expense (Benefit)	568,842	(1,854,717)
Net Income (Loss)	$ (1,075,569)	$ 2,891,880
Other Comprehensive Income (Loss)
Comprehensive Income (Loss)	$ (1,075,569)	$ 2,891,880
Earnings (Loss) per Common Share – Basic (in dollars per share)	$ (0.03)	$ 0.08
Earnings (Loss) per Common Share – Diluted (in dollars per share)	$ (0.03)	$ 0.07
Basic weighted average number of common shares outstanding (in shares)	38,129,660	37,350,668
Add: Dilutive shares assuming exercise of options and warrants (in shares)		1,859,527
Diluted weighted average number of common shares outstanding (in shares)	38,129,660	39,210,195

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
OPERATING ACTIVITIES
Net income (loss)	$ (1,075,569)	$ 2,891,880
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	1,747,972	1,322,934
Deferred income taxes	(568,842)	1,661,682
Stock-based compensation	150,433	$ 91,060
Stock issued for services	1,714
Amortization of debt issuance costs	35,571	$ 28,892
Bad debt expense	39,159	4,255
Changes in operating assets and liabilities
Accounts receivable	3,233,204	(531,120)
Inventories	12,319	46,244
Prepaid expense and other current assets	10,014	$ 385,643
Income taxes receivable	(14,608)
Accounts payable and accrued liabilities	$ (638,601)	$ 214,192
Income taxes payable		56,205
Net cash provided by operating activities	$ 2,932,766	6,171,867
INVESTING ACTIVITIES
Purchases of property and equipment	(4,504,676)	(2,352,379)
Net cash used in investing activities	(4,504,676)	(2,352,379)
FINANCING ACTIVITIES
Net line of credit borrowings (payments)	2,441,481	(4,093,140)
Repayment on long-term debt	(35,529)	$ (130,525)
Payment of debt issuance costs	$ (50,000)
Proceeds from exercise of warrants		$ 77,100
Proceeds from exercise of stock options		14,634
Excess tax benefits from exercise of options and warrants		136,831
Net cash provided by (used in) financing activities	$ 2,355,952	(3,995,100)
Net Increase (Decrease) in Cash and Cash Equivalents	784,042	(175,612)
Cash and Cash Equivalents, Beginning of Period	804,737	954,058
Cash and Cash Equivalents, End of Period	1,588,779	778,446
Supplemental cash flow information:
Cash paid for interest	259,936	$ 221,594
Cash paid for taxes	$ 1,400
Supplemental Disclosure of Non-cash Investing and Financing Activities:
Cashless exercise of stock options and warrants		$ 2,968

Note 1 - Basis of Presentation

Note 1 - Basis of Presentation	3 Months Ended
	Mar. 31, 2016
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	Note 1 – Basis of Presentation The accompanying consolidated financial statements have been derived from the accounting records of Enservco Corporation, Heat Waves Hot Oil Service LLC (“Heat Waves”), Dillco Fluid Service, Inc. (“Dillco”), Heat Waves Water Management LLC (“HWWM”), Trinidad Housing LLC, HE Services LLC, and Real GC LLC (collectively, the “Company”) as of March 31, 2016 and December 31, 2015 and the results of operations for the three months ended March 31, 2016 and 2015. The below table provides an overview of the Company’s current ownership hierarchy: Name State of Formation Ownership Business Dillco Fluid Service, Inc. (“Dillco”) Kansas 100% by Enservco Oil and natural gas field fluid logistic services. Heat Waves Hot Oil Service LLC (“Heat Waves”) Colorado 100% by Enservco Oil and natural gas well services, including logistics and stimulation. Heat Waves Water Management LLC (“HWWM”) Colorado 100% by Enservco Water Transfer and Water Treatment Services. HE Services LLC (“HES”) Nevada 100% by Heat Waves No active business operations. Owns construction equipment used by Heat Waves. Real GC, LLC (“Real GC”) Colorado 100% by Heat Waves No active business operations. Owns real property in Garden City, Kansas that is utilized by Heat Waves. On November 24, 2015, Heat Waves Water Management LLC (“HWWM”) was organized under the laws of the state of Colorado as a wholly owned subsidiary of Enservco for the purposes of launching a new water management division. Effective January 1, 2016, HWWM acquired various water transfer assets from WET Oil Services, LLC (“WET”) and HII Technologies, Inc. and its affiliates (“HIIT”) for approximately $4.0 million dollars. As part of the HIIT transaction, the Company also acquired a new water treatment technology utilized in devices sold under the name of HydroFLOW. HydroFLOW products offer water treatment services based on patented hydropath technology that can remove bacteria and scale from water using electrical induction to reduce or eliminate down-hole scaling and corrosion. HWWM plans to provide water transfer services and water treatment services to the onshore oil and natural gas sector. The accompanying unaudited Condensed Consolidated Financial Statements of the Company have been prepared in accordance with accounting principles for interim financial information and with the instructions to Form 10-Q and Article 8 of Regulation S-X. Accordingly, they do not include all of the disclosures required by generally accepted accounting principles in the United States for complete financial statements. In the opinion of management, all of the normal and recurring adjustments necessary to fairly present the interim financial information set forth herein have been included. The results of operations for interim periods are not necessarily indicative of the operating results of a full year or of future years. The accompanying unaudited Condensed Consolidated Financial Statements were prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and follow the same accounting policies and methods of their application as the most recent annual financial statements. These interim financial statements should be read in conjunction with the financial statements and related footnotes included in the Annual Report on Form 10-K of Enservco Corporation for the year ended December 31, 2015. All significant inter-company balances and transactions have been eliminated in the accompanying condensed consolidated financial statements. The accompanying Condensed Consolidated Balance Sheet at December 31, 2015 has been derived from the audited financial statements at that date, but does not include all of the information and notes required by GAAP for complete financial statements. For further information, refer to the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015.

Note 2 - Summary of Significant

Note 2 - Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2016
Notes to Financial Statements
Significant Accounting Policies [Text Block]	Note 2 - Summary of Significant Accounting Policies Cash and Cash Equivalents The Company considers all highly liquid instruments purchased with an original maturity of three months or less to be cash equivalents. The Company monitors its positions with, and the credit quality of, the financial institutions with which it invests. Accounts Receivable Accounts receivable are stated at the amounts billed to customers, net of an allowance for uncollectible accounts. The Company provides an allowance 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 March 31, 2016 and December 31, 2015, the Company had an allowance for doubtful accounts of $63,315 and $158,000, respectively. For the three months ended March 31, 2016 and 2015, the Company recorded bad debt expense (net of recoveries) of $39,159 and $4,255, respectively. Inventory 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. Long-Lived Assets 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-month periods ended March 31, 2016 and 2015. Property and Equipment Property and equipment consists of (1) trucks, trailers and pickups; (2) trucks that are in various stages of fabrication; (3) water transfer pumps, pipe, lay flat hose, trailers, and other support equipment, (4) real property which includes land and buildings used for office and shop facilities and wells used for the disposal of water; and (5) 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 that 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. Leases 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 June 2022. In most cases, management expects that in the normal course of business, leases will be renewed or replaced by other leases. The Company has leased trucks and equipment in the normal course of business, which was recorded as an operating lease. The Company recorded rental expense on equipment under operating leases over the lease term as it becomes payable; there were no rent escalation terms associated with these equipment leases. The equipment leases contained a purchase options that allowed 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. In October 2015, the Company exercised the purchase option on three frac water heaters. There are no significant equipment leases outstanding as of March 31, 2016. Revenue Recognition The Company recognizes revenue when evidence of an arrangement exists, the fee is fixed or determinable, services are provided, and collection is reasonably assured. Earnings Per Share 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. As of March 31, 2016 and 2015, there were outstanding stock options and warrants to acquire an aggregate of 3,730,669 and 3,250,302 shares of Company common stock , respectively, which have a potentially dilutive impact on earnings per share. For the three months ended March 31, 2015, 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 1,859,527 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 March 31, 2016. Intangible Assets Goodwill Impairment. Loan Fees and Other Deferred Costs In the normal course of business, the Company enters into loan agreements and amendments thereto with its primary lending institutions. The majority of these lending agreements and amendments 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 a direct deduction from the carrying amount of the related debt liability. All other costs not associated with the execution of the loan agreements are expensed as incurred. Income Taxes 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. 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 to be realized. The Company accounts for any uncertainty in income taxes by recognizing the tax benefit from an uncertain tax position only if, in the Company’s opinion, 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. Interest and penalties associated with tax positions are recorded in the period assessed as general and administrative expenses. The Company files tax returns in the United States and in the states in which it conducts its business operations. The tax years 2012 through 2015 remain open to examination in the taxing jurisdictions to which the Company is subject. Fair Value 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. 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 three months ended March 31, 2016. The financial and nonfinancial assets and liabilities are classified based on the lowest level of input that is significant to the fair value measurement. The hierarchy is broken down into three levels based on the reliability of the inputs as follows: Level 1: Quoted prices are available in active markets for identical assets or liabilities; Level 2: Quoted prices in active markets for similar assets and liabilities that are observable for the asset or liability; or Level 3: Unobservable pricing inputs that are generally less observable from objective sources, such as discounted cash flow models or valuations. Stock-based Compensation Stock-based compensation cost is measured at the date of grant, based on the calculated fair value of the award as described below, and is recognized over the requisite service period, which is generally the vesting period of the equity grant. The Company uses the Black-Scholes pricing model as a method for determining the estimated grant date fair value for all stock options awarded to employees, independent contractors, 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. 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. Management Estimates 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. Significant estimates include the realization of accounts receivable, stock based compensation expense, income tax provision, the valuation of interest rate swaps, and the valuation of deferred taxes. Actual results could differ from those estimates. Accounting Pronouncements Recently Issued In May 2014, the FASB issued ASU No. 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 ASU will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. In August 2015 the FASB agreed to defer the effective date by one year, the new standard becomes effective for us on January 1, 2018. Early adoption is permitted. The standard permits the use of either the retrospective or cumulative effect transition method. We are evaluating the effect that ASU 2014-09 will have on our consolidated financial statements and related disclosures. We have not yet selected a transition method nor have we determined the effect of the standard on our ongoing financial reporting. In August 2014, the FASB issued ASU 2014-15, “Presentation of Financial Statements—Going Concern: Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern” In July 2015, Simplifying the Measurement of Inventory The adoption of this guidance is not expected to impact the Company’s consolidated financial statements. In February 2016, the FASB issued ASU 2016-02 “ Leases (Topic 842) In March 2016, the FASB issued ASU 2016-09 “Compensation – Stock Compensation (Topic 718)” Recently Adopted Effective January 1, 2016, the Company adopted ASU 2015-03, “ Simplifying the Presentation of Debt Issuance Costs Effective January 1, 2016, the Company elected to early adopt ASU 2015-17, “ Balance Sheet Classification of Deferred Taxes” Our adoption resulted in a reclassification of current deferred tax assets of $237,411 to an offset of long-term deferred income taxes resulting in net long-term deferred income taxes of $4,417,043 as of December 31, 2015.

Note 3 - Property and Equipment

Note 3 - Property and Equipment	3 Months Ended
	Mar. 31, 2016
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	Note 3 - Property and Equipment Property and equipment consists of the following: March 31, December 31, 2016 2015 Trucks and vehicles $ 54,458,469 $ 54,153,487 Water transfer equipment 4,324,287 176,412 Other equipment 3,175,506 3,158,758 Buildings and improvements 3,787,912 3,752,841 Land 873,428 873,428 Disposal wells 391,003 391,003 Total property and equipment 67,010,605 62,505,929 Accumulated depreciation (27,759,240 ) (26,011,268 ) Property and equipment – net $ 39,251,365 $ 36,494,661 Effective January 1, 2016, HWWM acquired various water transfer assets from WET Oil Services, LLC (“WET”) and HII Technologies, Inc. (“HIIT”) for approximately $4 million dollars. These assets include high and low volume pumps, aluminum pipe, manifolds, lay flat hose, generators, other support equipment including vehicles and trailers. As part of the HIIT acquisition, HWWM also acquired a new water treatment technology utilized in devices sold under the name of HydroFLOW. In accordance with FASB Accounting Standards Codification 805, Business Combinations, the Company has accounted for the transactions with both HIIT and WET as asset acquisitions.

Note 4 - PNC Credit Facility

Note 4 - PNC Credit Facility	3 Months Ended
	Mar. 31, 2016
Notes to Financial Statements
Debt Disclosure [Text Block]	Note 4 – PNC Credit Facility 2014 PNC Credit Facility In September 2014, the Company entered into an Amended and Restated Revolving Credit and Security Agreement (the "2014 Credit Agreement") with PNC Bank, National Association ("PNC") which provides for a five-year $30 million senior secured revolving credit facility which replaced a prior revolving credit facility and term loan with PNC that totaled $16 million (the "2012 Credit Agreement"). The 2014 Credit Agreement allows the Company to borrow up to 85% of eligible receivables and 85% of the appraised value of trucks and equipment. Under the 2014 Credit Agreement, there are no required principal payments until maturity and the Company had the option to pay variable interest rate based on (i) 1, 2 or 3 month LIBOR plus an applicable margin ranging from 2.50% to 3.50% for LIBOR Rate Loans or (ii) interest at PNC Base Rate plus an applicable margin of 1.00% to 2.00% for Domestic Rate Loans. Interest is calculated monthly and added to the principal balance of the loan. Additionally, the Company incurs an unused credit line fee of 0.375%. The revolving credit facility is collateralized by substantially all of the Company’s assets and subject to financial covenants. The interest rate at March 31, 2016 was 4.9% for the $23,147,722 of outstanding LIBOR Rate Loans and 6.5% for the $0 of outstanding Domestic Rate Loans. Effective February 27, 2015, the Company entered into a Consent and First Amendment (the “First Amendment”) with respect to the 2014 Credit Agreement. The First Amendment, among other things, (i) modified certain financial covenants, and (ii) consented to a $100,000 principal prepayment by the Company to a third party bank that eliminated a monthly fee of $12,500 paid to the guarantor of that indebtedness. Effective March 29, 2015, the Company entered into a second amendment to the 2014 Credit Agreement with PNC to increase the Company’s leverage ratio, as defined from 2.75 to 1 to 3.50 to 1 and to exclude certain capital expenditures from the calculation of the fixed charge ratio. In July and October 2015, the Company entered into a third and fourth amendment, respectively, to the 2014 Credit Agreement with PNC. The amendments were made to administrative terms of the agreement and did not modify any terms of the financial covenants. Effective December 31, 2015, the Company entered into a fifth amendment to the 2014 Credit Agreement. The fifth amendment, among other things, (i) increased the applicable margin for Domestic Rate Loans and LIBOR Rate Loans by 25 basis points (ii) adjusted the Company’s leverage ratio, as defined, to 4.25 to 1.00 as of December 31, 2015, 4.50 to 1.00 as of March 31, 2016, and 3.50 to 1.00 as of June 30, 2016 and each quarter thereafter, and (iii) limited capital expenditures, as defined to an aggregate amount of $7,800,000 during the period commencing October 1, 2015 through June 30, 2016. On March 29, 2016, the Company entered into a Sixth Amendment (the “Sixth Amendment”) to the 2014 Credit Agreement. The Sixth Amendment, among other things, (i) reduced the revolving line of credit commitment from $40 million back to its original $30 million (ii) reset the fixed charge coverage ratio to build to a trailing four quarters beginning with the quarter ended December 31, 2015 (iii) added a new covenant which establishes a minimum monthly availability requirement for the period of March 2016 through March 2017 ranging from $1.5 million to $8.0 million (iv) converted the leverage and fixed charge coverage ratios to springing covenants which would only be triggered upon failure to meet the new availability covenant until it expires in February 2017; thereafter they will be individually tested quarterly (v) increased the applicable margin for Domestic Rate Loans and LIBOR Rate Loans by 175 basis points, and (vi) reinstated a full cash dominion requirement. As of March 31, 2016, the Company had an outstanding principle loan balance of $23,147,722 and unamortized debt issuance costs of $547,299. The outstanding principle loan balance matures in September 2019. As of March 31, 2016, approximately $5,400,000 was available under the revolving credit facility. Interest Rate Swap On September 17, 2015, the Company entered into an interest rate swap agreement with PNC which the Company designated as a fair value hedge against the variability in future interest payments related to its 2014 Credit Agreement. The terms of the interest rate swap agreement include a notional amount of $10 million, a fixed payment rate of 1.88% plus applicable a margin ranging from 2.50% to 3.50% paid by the Company and a floating payment rate equal to LIBOR plus applicable margin of 2.50% to 3.50% paid by PNC. The purpose of the swap agreement is to adjust the interest rate profile of the Company’s debt obligations and to achieve a targeted mix of floating and fixed rate debt. During the three-month period ended March 31, 2016, the fair market value of the swap instrument decreased by $98,000 which was recorded as interest expense.

Note 5 - Long-term Debt

Note 5 - Long-term Debt	3 Months Ended
	Mar. 31, 2016
Notes to Financial Statements
Long-term Debt [Text Block]	Note 5 – Long-Term Debt Long-term debt consists of the following: March 31, December 31, 2016 2015 Real Estate Loan for our facility in North Dakota, interest at 3.75%, monthly principal and interest payment of $5,255 ending October 3, 2028. Collateralized by land and property purchased with the loan. $ 525,322 $ 536,038 Note payable to the seller of Heat Waves. The note was garnished by the Internal Revenue Service (“IRS”) in 2009 and is due on demand; paid in monthly installments of $3,000 per agreement with the IRS. 197,000 206,000 Mortgage payable to a bank, interest at 5.9%, monthly principal and interest payments of $1,550 through January 2017 with a balloon payment of $88,118 on February 1, 2017; secured by land. 100,043 103,191 Mortgage payable to a bank; interest at 7.25%, due in monthly principal and interest payments of $4,555 through February 2017, secured by land. 46,874 59,539 Total 869,239 904,768 Less current portion (387,751 ) (314,263 ) Long-term debt, net of current portion $ 481,488 $ 590,505 Aggregate maturities of debt, excluding the 2014 Credit Agreement described in Note 4, are as follows: Twelve Months Ending March 31, 2017 $ 387,751 2018 45,530 2019 47,291 2020 49,085 2021 51,020 Thereafter 288,562 Total $ 869,239

Note 6 - Fair Value Measurement

Note 6 - Fair Value Measurements	3 Months Ended
	Mar. 31, 2016
Notes to Financial Statements
Fair Value Disclosures [Text Block]	Note 6 – Fair Value Measurements The following table presents the Company’s financial assets and liabilities that were accounted for at fair value on a recurring basis by level within the fair value hierarchy: Fair Value Measurement Using Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Fair Value Measurement March 31, 2016 Derivative Instrument Interest rate swap $ - $ 261,000 $ - $ 261,000 December 31, 2015 Derivative Instrument Interest rate swap $ - $ 163,000 $ - $ 163,000 The interest rate swap as of March 31, 2016 consists of a liability of $261,000 (classified within Accounts payable and accrued liabilities The Company’s derivative instrument (e.g. interest rate swap or “swap”) is valued using models which require a variety of inputs, including contractual terms, market prices, yield curves, credit spreads, and correlations of such inputs. Some of the model inputs used in valuing the derivative instruments trade in liquid markets therefore the derivative instrument is classified within Level 2 of the fair value hierarchy. For applicable financial assets carried at fair value, the credit standing of the counterparties is analyzed and factored into the fair value measurement of those assets. The fair value estimate of the swap does not reflect its actual trading value.

Note 7 - Income Taxes

Note 7 - Income Taxes	3 Months Ended
	Mar. 31, 2016
Notes to Financial Statements
Income Tax Disclosure [Text Block]	Note 7 – Income Taxes Income tax expense during interim periods is based on applying an estimated annual effective income tax rate to year-to-date income, plus any significant unusual or infrequently occurring items which are recorded in the interim period. The provision for income taxes for the three months ended March 31, 2016 and 2015 differs from the amount that would be provided by applying the statutory U.S. federal income tax rate of 34% to pre-tax income primarily because of state income taxes and estimated permanent differences. The computation of the annual estimated effective tax rate at each interim period requires certain estimates and significant judgment including, but not limited to, the expected operating income for the year, projections of the proportion of income earned and taxed in various jurisdictions, permanent and temporary differences, and the likelihood of recovering deferred tax assets generated in the current year. The accounting estimates used to compute the provision for income taxes may change as new events occur, more experience is obtained, additional information becomes known or as the tax environment changes.

Note 8 - Commitments and Contin

Note 8 - Commitments and Contingencies	3 Months Ended
	Mar. 31, 2016
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	Note 8 – Commitments and Contingencies Operating Leases As of March 31, 2016, the Company leases facilities and certain trucks and equipment under lease commitments that expire through June 2022. Future minimum lease commitments for these operating lease commitments are as follows: Twelve Months Ending March 31, 2017 $ 715,128 2018 563,011 2019 465,187 2020 471,863 2021 358,289 Thereafter 270,186 Total $ 2,843,664 Equipment Purchase Commitments As of March 31, 2016, the Company did not have any outstanding purchase commitments related to the purchase of equipment and construction of building facilities. Self-Insurance In June 2015, the Company became self-insured under its Employee Group Medical Plan for the first $75,000 per individual participant. The Company has accrued a liability of approximately $59,000 as of March 31, 2016 for insurance claims that it anticipates paying in the future related to claims that occurred during the period ended March 31, 2016. Litigation In October 2014, the Company was served with a complaint filed in the United States District Court for the Northern District of Texas, Dallas Division (Civil Action No. 3:14-cv-03631) by Heat-On-The-Fly, LLC (“HOTF”), naming Enservco Corporation (“Enservco”) and its subsidiary Heat Waves Hot Oil Service LLC (“Heat Waves”) as defendants. The complaint alleges that Enservco and Heat Waves, in offering and selling frac water heating services, infringed and induced others to infringe two patents owned by HOTF (U.S. Patent Nos. 8,171,993 (“the ‘993 Patent”) and 8,739,875 (“the ‘875 Patent”)). The complaint seeks various remedies including injunctive relief and unspecified damages and relates to only a portion of Heat Waves’ frac water heating services. In May 2015, the case was transferred to the U.S. District Court for the District of Colorado, Civil Action No. 1:15-cv-00983-RBJ (“Colorado Case”). Heat Waves has answered the complaint, denied HOTF’s allegations of infringement and asserted counterclaims asking the Court to find, among other things, that it does not infringe either patent and that both patents are invalid. HOTF has replied to and denied those counterclaims. In July 2015, the Company and HOTF jointly asked the Colorado Court to stay the case pending any appeal by HOTF of the partial summary judgment ruling invalidating the ‘993 Patent referenced below, and on July 20, 2015, the Court granted the parties’ joint request. The Colorado case is now stayed pending resolution of appeal by HOTF of the North Dakota Court’s invalidity ruling. HOTF is currently involved in another litigation with a group of energy companies (which does not include Enservco or Heat Waves) that sought, among other things, to invalidate the ‘993 Patent (“North Dakota Case”). In March 2015, the North Dakota Court granted the energy companies’ partial summary judgment motion, finding that the ‘993 Patent was invalid and later entered a judgment on this issue. In September 2015, a jury trial was conducted. While it did not find that HOTF committed the tort of deceit, the jury found that HOTF represented to a customer of one of the accused energy companies that HOTF had a valid patent and this representation was made in bad faith. The jury also found, among other things, that HOTF unlawfully interfered with a contract and prospective business relationship with that customer and as such, awarded the energy company $750,000 in damages. Lastly, the Court also held a bench trial on the energy companies’ claim that the ‘993 Patent is unenforceable due to inequitable conduct by the inventor of the ‘993 Patent before the U.S. Patent and Trademark Office (“USPTO”). In January 2016, the Court ruled that the ‘993 Patent is unenforceable due to inequitable conduct by the inventor and/or HOTF. In February 2016, HOTF filed a notice of its intent to appeal to the U.S. Court of Appeals for the Federal Circuit (“Federal Circuit”) all judgments and adverse orders related to those judgments issued by the North Dakota Court. Although the first 12 claims of the ‘993 Patent survived a prior reexamination, the USPTO granted a second request in July 2014 to reexamine the ‘993 Patent in its entirety (all 99 claims, including the prior 12 claims that survived the prior, limited reexamination) based on different reasoning. In February 2015, the USPTO issued initial findings in the second reexamination proceeding and rejected all 99 claims of the ‘993 Patent as being unpatentable. In April 2015, HOTF filed a response with the USPTO seeking to overcome these pending rejections. In May 2016, the USPTO reversed its decision and confirmed all 99 claims as being patentable over the prior art in the ‘993 Patent Reexamination proceeding. Further, HOTF has at least two additional pending patent applications based on the ‘993 and ‘875 Patents, which, if granted, could be asserted against the Company. As the ‘993 Patent and the ‘875 Patent are based on the same subject matter, management believes that a final finding of invalidity and/or unenforceability of the ‘993 Patent by the Federal Circuit could serve as a basis to affect the validity of the ‘875 Patent. If these Patents are ultimately held to be invalid, the Colorado Case would become moot. As noted above, the Colorado Case has been stayed. However, in the event that HOTF’s appeal is successful and the ‘993 Patent is found to be valid and/or enforceable in the North Dakota Case, the Colorado Case may resume. To the extent that Enservco and Heat Waves are unsuccessful in their defense of the Colorado Case, they could be liable for damages (which may be significant) and Heat Waves could possibly be enjoined from using any technology that is determined to be infringing. Either result could negatively impact Heat Waves’ business and operations. At this time, the Company is unable to predict the outcome of this case, and accordingly has not recorded an accrual for any potential loss.

Note 9 - Stockholders Equity

Note 9 - Stockholders Equity	3 Months Ended
	Mar. 31, 2016
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	Note 9 – Stockholders Equity Warrants In conjunction with a private placement transaction and subordinated debt conversion in November 2012, the Company granted warrants to purchase 5,185,714 shares of the Company’s common stock, exercisable at $0.55 per share for a five-year term. Each of the warrants may be exercised on a cashless basis. The warrants also provide that subject to various conditions, the holders have piggy-back registration rights with respect to the shares of common stock that may be acquired upon the exercise of the warrants. As of March 31, 2016, 150,001 of these warrants remain outstanding. A summary of warrant activity for the three months ended March 31, 2016 is as follows: Weighted Weighted Average Average Remaining Aggregate Exercise Contractual Intrinsic Warrants Shares Price Life (Years) Value Outstanding at December 31, 2015 150,001 $ 0.55 1.9 $ - Issued for Services - - Exercised - - Forfeited/Cancelled - Outstanding at March 31, 2016 150,001 $ 0.55 1.7 $ 4,500 Exercisable at March 31, 2016 150,001 $ 0.55 1.7 $ 4,500 During the three months ended March 31, 2016, there were no warrants issued or exercised. During the three months ended March 31, 2015, warrants to acquire 100,000 shares were exercised for cash payments totaling $77,100. The warrants exercised had a total intrinsic value of $102,000 at the time of exercise. Stock Issued for Services During the fiscal year ended March 31, 2016, the Company issued 3,031 shares of common stock to a consultant as partial compensation for services provided to the Company. The shares were granted under the 2010 Stock Incentive Plan and were fully vested and unrestricted at the time of issuance. For the period ended March 31, 2016, the Company recorded $1,700 of consulting expense for these services in the accompanying consolidated statement of operations and comprehensive income (loss).

Note 10 - Stock Options

Note 10 - Stock Options	3 Months Ended
	Mar. 31, 2016
Notes to Financial Statements
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	Note 10 – Stock Options Stock Option Plans On July 27, 2010 the Company’s Board of Directors adopted the 2010 Stock Incentive Plan (the “2010 Plan”). The aggregate number of shares of common stock that may granted under the 2010 Plan is reset at the beginning of each year based on 15% of the number of shares of common stock then outstanding. As such, on January 1, 2016 the number of shares of common stock available under the 2010 Plan was reset to 5,719,069 shares based upon 38,127,129 shares outstanding on that date. Options are typically granted with an exercise price equal to the estimated fair value of the Company's common stock at the date of grant with a vesting schedule of one to three years and a contractual term of 5 years. As of March 31, 2016, there were options to purchase 3,580,668 shares outstanding under the 2010 Plan. A summary of the range of assumptions used to value stock options granted for the three months ended March 31, 2016 and 2015 are as follows: For the Three Months Ended March 31, 2016 2015 Expected volatility 85% - 102% 109% Risk-free interest rate 1.1% - 1.2% 0.8% Forfeiture rate 0% 0% Dividend yield - - Expected term (in years) 3.31 3.28 During the three months ended March 31, 2016, the Company granted options to acquire 130,000 shares of common stock with a weighted-average grant-date fair value of $0.24 per share. During the three months ended March 31, 2016, no options were exercised. During the three months ended March 31, 2015, the Company granted options to acquire 230,000 shares of common stock with a weighted-average grant-date fair value of $1.22 per share. During the three months ended March 31, 2015, options to acquire 600,000 shares of common stock were exercised by way of a cashless exercise whereby the option holders elected to receive 463,698 shares of common stock without payment of the exercise price and the remaining options for 136,302 shares were cancelled. The options had an intrinsic value of $970,125 at the time of exercise. In addition, options to acquire 29,867 shares of common stock were exercised for cash payments of $14,634. The options had an intrinsic value of $40,951 at the time of exercise. The following is a summary of stock option activity for all equity plans for the three months ended March 31, 2016: Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years) Aggregate Intrinsic Value Outstanding at December 31 , 2015 3,485,168 $ 1.31 2.53 $ 63,067 Granted 130,000 0.41 Exercised - - Forfeited or Expired (34,500 ) 1.65 Outstanding at March 31, 2016 3,580,668 $ 1.27 2.36 $ 117,100 Vested or Expected to Vest at March 31, 2016 3,580,668 $ 1.27 2.36 $ 117,100 Exercisable at March 31, 2016 2,637,832 $ 1.16 1.79 $ 94,600 The aggregate intrinsic value in the table above represents the total intrinsic value (the difference between the estimated fair value of the Company’s common stock on March 31, 2016, and the exercise price, multiplied by the number of in-the-money options) that would have been received by the option holders had they exercised their options on March 31, 2016. During the three months ended March 31, 2016 and 2015, the Company recognized stock-based compensation costs for stock options of $150,433 and $91,060, respectively in general and administrative expenses. The Company currently expects all outstanding options to vest. Compensation cost is revised if subsequent information indicates that the actual number of options vested due to service is likely to differ from previous estimates. A summary of the status of non-vested shares underlying the options are presented below: Number of Shares Weighted-Average Grant-Date Fair Value Non-vested at December 31, 2015 1,323,669 $ 1.22 Granted 130,000 0.24 Vested (486,333 ) 1.20 Forfeited (24,500 ) 1.25 Non-vested at March 31, 2016 942,836 $ 1.09 As of March 31, 2016, there was $889,292 of total unrecognized compensation costs related to non-vested shares under the qualified stock option plans which will be recognized over the remaining weighted-average period of 2.4 years.

Note 11 - Subsequent Events

Note 11 - Subsequent Events	3 Months Ended
	Mar. 31, 2016
Notes to Financial Statements
Subsequent Events [Text Block]	Note 11 – Subsequent Events On May 5, 2016, the Board of Directors granted stock options to acquire 1,375,000 shares of common stock to its executive officers, management and key employees. The stock options are exercisable until May 2021 at a strike price of $0.60 per share (being the closing price on the date the options were granted). Options to acquire 541,666 shares of common stock vest on December 31, 2016 and December 31, 2017 with the remaining 291,668 options vesting on December 31, 2018.

Significant Accounting Policies

Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2016
Accounting Policies [Abstract]
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash and Cash Equivalents The Company considers all highly liquid instruments purchased with an original maturity of three months or less to be cash equivalents. The Company 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 Accounts receivable are stated at the amounts billed to customers, net of an allowance for uncollectible accounts. The Company provides an allowance 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 March 31, 2016 and December 31, 2015, the Company had an allowance for doubtful accounts of $63,315 and $158,000, respectively. For the three months ended March 31, 2016 and 2015, the Company recorded bad debt expense (net of recoveries) of $39,159 and $4,255, respectively.
Inventory, Policy [Policy Text Block]	Inventory 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 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-month periods ended March 31, 2016 and 2015.
Property, Plant and Equipment, Policy [Policy Text Block]	Property and Equipment Property and equipment consists of (1) trucks, trailers and pickups; (2) trucks that are in various stages of fabrication; (3) water transfer pumps, pipe, lay flat hose, trailers, and other support equipment, (4) real property which includes land and buildings used for office and shop facilities and wells used for the disposal of water; and (5) 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 that 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 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 June 2022. In most cases, management expects that in the normal course of business, leases will be renewed or replaced by other leases. The Company has leased trucks and equipment in the normal course of business, which was recorded as an operating lease. The Company recorded rental expense on equipment under operating leases over the lease term as it becomes payable; there were no rent escalation terms associated with these equipment leases. The equipment leases contained a purchase options that allowed 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. In October 2015, the Company exercised the purchase option on three frac water heaters. There are no significant equipment leases outstanding as of March 31, 2016.
Revenue Recognition, Policy [Policy Text Block]	Revenue Recognition The Company recognizes revenue when evidence of an arrangement exists, the fee is fixed or determinable, services are provided, and collection is reasonably assured.
Earnings Per Share, Policy [Policy Text Block]	Earnings Per Share 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. As of March 31, 2016 and 2015, there were outstanding stock options and warrants to acquire an aggregate of 3,730,669 and 3,250,302 shares of Company common stock , respectively, which have a potentially dilutive impact on earnings per share. For the three months ended March 31, 2015, 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 1,859,527 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 March 31, 2016.
Goodwill and Intangible Assets, Policy [Policy Text Block]	Intangible Assets Goodwill Impairment.
Loan Fees and Other Deferred Costs [Policy Text Block]	Loan Fees and Other Deferred Costs In the normal course of business, the Company enters into loan agreements and amendments thereto with its primary lending institutions. The majority of these lending agreements and amendments 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 a direct deduction from the carrying amount of the related debt liability. All other costs not associated with the execution of the loan agreements are expensed as incurred.
Income Tax, Policy [Policy Text Block]	Income Taxes 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. 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 to be realized. The Company accounts for any uncertainty in income taxes by recognizing the tax benefit from an uncertain tax position only if, in the Company’s opinion, 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. Interest and penalties associated with tax positions are recorded in the period assessed as general and administrative expenses. The Company files tax returns in the United States and in the states in which it conducts its business operations. The tax years 2012 through 2015 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 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. 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 three months ended March 31, 2016. The financial and nonfinancial assets and liabilities are classified based on the lowest level of input that is significant to the fair value measurement. The hierarchy is broken down into three levels based on the reliability of the inputs as follows: Level 1: Quoted prices are available in active markets for identical assets or liabilities; Level 2: Quoted prices in active markets for similar assets and liabilities that are observable for the asset or liability; or 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 Stock-based compensation cost is measured at the date of grant, based on the calculated fair value of the award as described below, and is recognized over the requisite service period, which is generally the vesting period of the equity grant. The Company uses the Black-Scholes pricing model as a method for determining the estimated grant date fair value for all stock options awarded to employees, independent contractors, 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. 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 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. Significant estimates include the realization of accounts receivable, stock based compensation expense, income tax provision, the valuation of interest rate swaps, and the valuation of deferred taxes. Actual results could differ from those estimates.
New Accounting Pronouncements, Policy [Policy Text Block]	Accounting Pronouncements Recently Issued In May 2014, the FASB issued ASU No. 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 ASU will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. In August 2015 the FASB agreed to defer the effective date by one year, the new standard becomes effective for us on January 1, 2018. Early adoption is permitted. The standard permits the use of either the retrospective or cumulative effect transition method. We are evaluating the effect that ASU 2014-09 will have on our consolidated financial statements and related disclosures. We have not yet selected a transition method nor have we determined the effect of the standard on our ongoing financial reporting. In August 2014, the FASB issued ASU 2014-15, “Presentation of Financial Statements—Going Concern: Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern” In July 2015, Simplifying the Measurement of Inventory The adoption of this guidance is not expected to impact the Company’s consolidated financial statements. In February 2016, the FASB issued ASU 2016-02 “ Leases (Topic 842) In March 2016, the FASB issued ASU 2016-09 “Compensation – Stock Compensation (Topic 718)” Recently Adopted Effective January 1, 2016, the Company adopted ASU 2015-03, “ Simplifying the Presentation of Debt Issuance Costs Effective January 1, 2016, the Company elected to early adopt ASU 2015-17, “ Balance Sheet Classification of Deferred Taxes” Our adoption resulted in a reclassification of current deferred tax assets of $237,411 to an offset of long-term deferred income taxes resulting in net long-term deferred income taxes of $4,417,043 as of December 31, 2015.

Note 1 - Basis of Presentation

Note 1 - Basis of Presentation (Tables)	3 Months Ended
	Mar. 31, 2016
Notes Tables
Schedule of Current Ownership Hierarchy [Table Text Block]	Name State of Formation Ownership Business Dillco Fluid Service, Inc. (“Dillco”) Kansas 100% by Enservco Oil and natural gas field fluid logistic services. Heat Waves Hot Oil Service LLC (“Heat Waves”) Colorado 100% by Enservco Oil and natural gas well services, including logistics and stimulation. Heat Waves Water Management LLC (“HWWM”) Colorado 100% by Enservco Water Transfer and Water Treatment Services. HE Services LLC (“HES”) Nevada 100% by Heat Waves No active business operations. Owns construction equipment used by Heat Waves. Real GC, LLC (“Real GC”) Colorado 100% by Heat Waves No active business operations. Owns real property in Garden City, Kansas that is utilized by Heat Waves.

Note 3 - Property and Equipme19

Note 3 - Property and Equipment (Tables)	3 Months Ended
	Mar. 31, 2016
Notes Tables
Property, Plant and Equipment [Table Text Block]	March 31, December 31, 2016 2015 Trucks and vehicles $ 54,458,469 $ 54,153,487 Water transfer equipment 4,324,287 176,412 Other equipment 3,175,506 3,158,758 Buildings and improvements 3,787,912 3,752,841 Land 873,428 873,428 Disposal wells 391,003 391,003 Total property and equipment 67,010,605 62,505,929 Accumulated depreciation (27,759,240 ) (26,011,268 ) Property and equipment – net $ 39,251,365 $ 36,494,661

Note 5 - Long-term Debt (Tables

Note 5 - Long-term Debt (Tables)	3 Months Ended
	Mar. 31, 2016
Notes Tables
Schedule of Long-term Debt Instruments [Table Text Block]	March 31, December 31, 2016 2015 Real Estate Loan for our facility in North Dakota, interest at 3.75%, monthly principal and interest payment of $5,255 ending October 3, 2028. Collateralized by land and property purchased with the loan. $ 525,322 $ 536,038 Note payable to the seller of Heat Waves. The note was garnished by the Internal Revenue Service (“IRS”) in 2009 and is due on demand; paid in monthly installments of $3,000 per agreement with the IRS. 197,000 206,000 Mortgage payable to a bank, interest at 5.9%, monthly principal and interest payments of $1,550 through January 2017 with a balloon payment of $88,118 on February 1, 2017; secured by land. 100,043 103,191 Mortgage payable to a bank; interest at 7.25%, due in monthly principal and interest payments of $4,555 through February 2017, secured by land. 46,874 59,539 Total 869,239 904,768 Less current portion (387,751 ) (314,263 ) Long-term debt, net of current portion $ 481,488 $ 590,505
Schedule of Maturities of Long-term Debt [Table Text Block]	Twelve Months Ending March 31, 2017 $ 387,751 2018 45,530 2019 47,291 2020 49,085 2021 51,020 Thereafter 288,562 Total $ 869,239

Note 6 - Fair Value Measureme21

Note 6 - Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2016
Notes Tables
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	Fair Value Measurement Using Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Fair Value Measurement March 31, 2016 Derivative Instrument Interest rate swap $ - $ 261,000 $ - $ 261,000 December 31, 2015 Derivative Instrument Interest rate swap $ - $ 163,000 $ - $ 163,000

Note 8 - Commitments and Cont22

Note 8 - Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2016
Notes Tables
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	Twelve Months Ending March 31, 2017 $ 715,128 2018 563,011 2019 465,187 2020 471,863 2021 358,289 Thereafter 270,186 Total $ 2,843,664

Note 9 - Stockholders Equity (T

Note 9 - Stockholders Equity (Tables)	3 Months Ended
	Mar. 31, 2016
Notes Tables
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]	Weighted Weighted Average Average Remaining Aggregate Exercise Contractual Intrinsic Warrants Shares Price Life (Years) Value Outstanding at December 31, 2015 150,001 $ 0.55 1.9 $ - Issued for Services - - Exercised - - Forfeited/Cancelled - Outstanding at March 31, 2016 150,001 $ 0.55 1.7 $ 4,500 Exercisable at March 31, 2016 150,001 $ 0.55 1.7 $ 4,500

Note 10 - Stock Options (Tables

Note 10 - Stock Options (Tables)	3 Months Ended
	Mar. 31, 2016
Notes Tables
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	For the Three Months Ended March 31, 2016 2015 Expected volatility 85% - 102% 109% Risk-free interest rate 1.1% - 1.2% 0.8% Forfeiture rate 0% 0% Dividend yield - - Expected term (in years) 3.31 3.28
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]	Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years) Aggregate Intrinsic Value Outstanding at December 31 , 2015 3,485,168 $ 1.31 2.53 $ 63,067 Granted 130,000 0.41 Exercised - - Forfeited or Expired (34,500 ) 1.65 Outstanding at March 31, 2016 3,580,668 $ 1.27 2.36 $ 117,100 Vested or Expected to Vest at March 31, 2016 3,580,668 $ 1.27 2.36 $ 117,100 Exercisable at March 31, 2016 2,637,832 $ 1.16 1.79 $ 94,600
Schedule of Nonvested Share Activity [Table Text Block]	Number of Shares Weighted-Average Grant-Date Fair Value Non-vested at December 31, 2015 1,323,669 $ 1.22 Granted 130,000 0.24 Vested (486,333 ) 1.20 Forfeited (24,500 ) 1.25 Non-vested at March 31, 2016 942,836 $ 1.09

Note 1 - Basis of Presentatio25

Note 1 - Basis of Presentation (Details Textual) $ in Millions	Jan. 02, 2016USD ($)
Water Management Assets of HII Technologies and Wet Oilfield Services, LLC [Member] | HWWM [Member]
Payments to Acquire Productive Assets	$ 4

Note 1 - Current Ownership Hier

Note 1 - Current Ownership Hierarchy (Details)	3 Months Ended
	Mar. 31, 2016
Dillco Fluid Service Inc at Kansas [Member]
Subsidiary or Equity Method Investee	100.00%
Heat Waves Hot Oil Service LLC at Colorado [Member]
Subsidiary or Equity Method Investee	100.00%
Heat Waves Water Management LLC [Member]
Subsidiary or Equity Method Investee	100.00%
HE Services LLC at Nevada [Member] | Heat Waves [Member]
Subsidiary or Equity Method Investee	100.00%
Real GC LLC at Colorado [Member] | Heat Waves [Member]
Subsidiary or Equity Method Investee	100.00%

Note 2 - Summary of Significa27

Note 2 - Summary of Significant Accounting Policies (Details Textual)	1 Months Ended	3 Months Ended		12 Months Ended
	Oct. 31, 2015	Mar. 31, 2016USD ($)shares	Mar. 31, 2015USD ($)shares	Dec. 31, 2015USD ($)
Minimum [Member]
Property, Plant and Equipment, Useful Life		5 years
Maximum [Member]
Property, Plant and Equipment, Useful Life		30 years
Earliest Tax Year [Member]
Open Tax Year		2,012
Latest Tax Year [Member]
Open Tax Year		2,015
Reclassification of Debt Issuance Costs [Member] | December 31, 2015 [Member]
Prior Period Reclassification Adjustment		$ 532,870
Reclassification from Current Deferred Tax Assets to Noncurrent Deferred Tax Liabilities [Member] | December 31, 2015 [Member]
Prior Period Reclassification Adjustment		237,411
Allowance for Doubtful Accounts Receivable, Current		63,315		$ 158,000
Provision for Doubtful Accounts		39,159	$ 4,255
Asset Impairment Charges		0	$ 0
Number of Equipment, Exercised Purchase Options, Operating Leases	3
Contractual Obligation		$ 0
Number of Outstanding Stock Based Option Awards and Warrants | shares		3,730,669	3,250,302
Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants | shares			1,859,527
Dilutive Securities, Effect on Basic Earnings Per Share		$ 0
Goodwill, Impairment Loss		0	$ 0
Impairment of Intangible Assets (Excluding Goodwill)				0
Payments of Dividends		$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate		0.00%
Deferred Tax Liabilities, Net, Noncurrent		$ 3,848,201		$ 4,417,043

Note 3 - Property and Equipme28

Note 3 - Property and Equipment (Details Textual) $ in Millions	Jan. 02, 2016USD ($)
Water Management Assets of HII Technologies and Wet Oilfield Services, LLC [Member] | HWWM [Member]
Payments to Acquire Productive Assets	$ 4

Note 3 - Summary of Property an

Note 3 - Summary of Property and Equipment (Details) - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Vehicles [Member]
Property and Equipment - Gross	$ 54,458,469	$ 54,153,487
Water Transfer Equipment [Member]
Property and Equipment - Gross	4,324,287	176,412
Property, Plant and Equipment, Other Types [Member]
Property and Equipment - Gross	3,175,506	3,158,758
Building and Building Improvements [Member]
Property and Equipment - Gross	3,787,912	3,752,841
Land [Member]
Property and Equipment - Gross	873,428	873,428
Disposal Wells [Member]
Property and Equipment - Gross	391,003	391,003
Property and Equipment - Gross	67,010,605	62,505,929
Accumulated depreciation	(27,759,240)	(26,011,268)
Property and equipment – net	$ 39,251,365	$ 36,494,661

Note 4 - PNC Credit Facility (D

Note 4 - PNC Credit Facility (Details Textual)	Mar. 29, 2016USD ($)	Dec. 31, 2015USD ($)	Sep. 17, 2015USD ($)	Mar. 29, 2015	Feb. 27, 2015USD ($)	Mar. 28, 2015	Sep. 30, 2014USD ($)	Mar. 31, 2016USD ($)	Mar. 31, 2016USD ($)	Jun. 30, 2016	Jun. 30, 2016USD ($)	Sep. 30, 2014USD ($)	Mar. 28, 2016USD ($)
Two Thousand Fourteen Credit Agreement [Member] | Revolving Credit Facility [Member] | Minimum [Member]
Line of Credit, Minimum Excess Availability	$ 1,500,000
Two Thousand Fourteen Credit Agreement [Member] | Revolving Credit Facility [Member] | Maximum [Member]
Line of Credit, Minimum Excess Availability	8,000,000
Two Thousand Fourteen Credit Agreement [Member] | Revolving Credit Facility [Member]
Debt Instrument, Term							5 years
Line of Credit Facility, Maximum Borrowing Capacity	$ 30,000,000						$ 30,000,000					$ 30,000,000	$ 40,000,000
Line of Credit Facility Limitation on Borrowings Percentage of Eligible Receivables							85.00%					85.00%
Line of Credit Facility Limitation on Borrowings Percentage of Appraised Value of Trucks and Equipment							85.00%					85.00%
Long-term Debt								$ 23,147,722	$ 23,147,722
Line of Credit Facility, Remaining Borrowing Capacity								$ 5,400,000	5,400,000
Two Thousand Fourteen Credit Agreement [Member] | Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate												2.50%
Two Thousand Fourteen Credit Agreement [Member] | Minimum [Member] | Base Rate [Member] | Domestic Rate Loans [Member]
Debt Instrument, Basis Spread on Variable Rate												1.00%
Two Thousand Fourteen Credit Agreement [Member] | Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate												3.50%
Two Thousand Fourteen Credit Agreement [Member] | Maximum [Member] | Base Rate [Member] | Domestic Rate Loans [Member]
Debt Instrument, Basis Spread on Variable Rate												2.00%
Two Thousand Fourteen Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate								4.90%
Long-term Debt								$ 23,147,722	23,147,722
Two Thousand Fourteen Credit Agreement [Member] | Base Rate [Member] | Domestic Rate Loans [Member]
Debt Instrument, Interest Rate, Increase (Decrease)	1.75%
Two Thousand Fourteen Credit Agreement [Member] | Domestic Rate Loans [Member]
Long-term Debt								$ 0	$ 0
Debt Instrument, Interest Rate, Stated Percentage								6.50%	6.50%
Two Thousand Fourteen Credit Agreement [Member] | Scenario, Forecast [Member]
Leverage Ratio										3.5
Maximum Capital Expenditures											$ 7,800,000
Two Thousand Fourteen Credit Agreement [Member]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage												0.375%
Leverage Ratio		4.25		3.5		2.75			4.5
Debt Instrument, Interest Rate, Increase (Decrease)		0.25%
Two Thousand Twelve Credit Agreement [Member]
Line of Credit Facility, Maximum Borrowing Capacity							$ 16,000,000					$ 16,000,000
Guaranteed Loan [Member] | Chief Executive Officer [Member]
Debt Instrument Monthly Payment					$ 12,500
Guaranteed Loan [Member]
Principal Prepayment Eliminate Monthly Fee					$ 100,000
Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member] | Fair Value Hedging [Member] | Interest Rate Swap [Member] | PNC Bank [Member]
Derivative, Basis Spread on Variable Rate			2.50%
Minimum [Member] | Fair Value Hedging [Member] | Interest Rate Swap [Member]
Derivative, Swaption Interest Rate, Applicable Margin			2.50%
Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member] | Fair Value Hedging [Member] | Interest Rate Swap [Member] | PNC Bank [Member]
Derivative, Basis Spread on Variable Rate			3.50%
Maximum [Member] | Fair Value Hedging [Member] | Interest Rate Swap [Member]
Derivative, Swaption Interest Rate, Applicable Margin			3.50%
Fair Value Hedging [Member] | Interest Rate Swap [Member] | Interest Expense [Member]
Unrealized Gain (Loss) on Derivatives								$ (98,000)
Fair Value Hedging [Member] | Interest Rate Swap [Member]
Derivative, Notional Amount			$ 10,000,000
Derivative, Swaption Interest Rate			1.88%
Long-term Debt		$ 904,768						869,239	$ 869,239
Unamortized Debt Issuance Expense		$ 532,870						$ 547,299	$ 547,299

Note 5 - Summary of Long-term D

Note 5 - Summary of Long-term Debt Instruments (Details) - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Real Estate Loan 1 [Member]
Long-term Debt	$ 525,322	$ 536,038
Note Payable To Seller Of Heat Waves [Member]
Long-term Debt	197,000	206,000
Mortgage Payable Through February 2017 [Member]
Long-term Debt	100,043	103,191
Mortgage Payable Through February 2017 Without Balloon Payment [Member]
Long-term Debt	46,874	59,539
Long-term Debt	869,239	904,768
Less current portion	(387,751)	(314,263)
Long-term debt, net of current portion	$ 481,488	$ 590,505

Note 5 - Summary of Long-term32

Note 5 - Summary of Long-term Debt Instruments (Details) (Parentheticals) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Real Estate Loan 1 [Member]
Debt Instrument, Periodic Payment	$ 5,255	$ 5,255
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	3.75%	3.75%
Debt Instrument, Maturity Date	Oct. 3, 2028	Oct. 3, 2028
Note Payable To Seller Of Heat Waves [Member]
Debt Instrument, Periodic Payment	$ 3,000	$ 3,000
Mortgage Payable Through February 2017 [Member]
Debt Instrument, Periodic Payment	$ 1,550	$ 1,550
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	5.90%	5.90%
Debt Instrument, Maturity Date	Feb. 1, 2017	Feb. 1, 2017
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid	$ 88,118	$ 88,118
Mortgage Payable Through February 2017 Without Balloon Payment [Member]
Debt Instrument, Periodic Payment	$ 4,555	$ 4,555
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	7.25%	7.25%

Note 5 - Summary of Maturities

Note 5 - Summary of Maturities of Long-Term Debt (Details) - USD ($)	Mar. 31, 2016	Dec. 31, 2015
2,017	$ 387,751
2,018	45,530
2,019	47,291
2,020	49,085
2,021	51,020
Thereafter	288,562
Total	$ 869,239	$ 904,768

Note 6 - Fair Value Measureme34

Note 6 - Fair Value Measurements (Details Textual) - Interest Rate Swap [Member] - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Accounts Payable and Accrued Liabilities [Member]
Derivative Liability	$ 261,000
Derivative Liability	$ 261,000	$ 163,000

Note 6 - Financial Assets and L

Note 6 - Financial Assets and Liabilities Measured on Recurring Basis (Details) - Interest Rate Swap [Member] - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Inputs, Level 1 [Member]
Derivative Instrument Interest rate swap
Fair Value, Inputs, Level 2 [Member]
Derivative Instrument Interest rate swap	$ 261,000	$ 163,000
Fair Value, Inputs, Level 3 [Member]
Derivative Instrument Interest rate swap
Derivative Instrument Interest rate swap	$ 261,000	$ 163,000

Note 7 - Income Taxes (Details

Note 7 - Income Taxes (Details Textual)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	34.00%	34.00%

Note 8 - Commitments and Cont37

Note 8 - Commitments and Contingencies (Details Textual)	May. 11, 2016	Feb. 11, 2015	Sep. 30, 2015USD ($)	Jun. 30, 2015USD ($)	Jul. 31, 2014	Mar. 31, 2016USD ($)	Oct. 31, 2014
Capital Addition Purchase Commitments [Member]
Unrecorded Unconditional Purchase Obligation						$ 0
Patent 993 And Patent 875 [Member] | Unasserted Claim [Member]
Number of Patents Owned							2
Loss Contingency, Pending Claims, Number						2
Patent 993 And Patent 875 [Member]
Self-insured Amount per Individual Claim				$ 75,000
Self Insurance Reserve						$ 59,000
Patent 993 [Member] | Heat-On-The-Fly, LLC (HOTF) [Member]
Loss Contingency, Damages Awarded, Value			$ 750,000
Patent 993 [Member] | Prior Reexamination [Member]
Loss Contingency, Claims Settled, Number					12
Patent 993 [Member] | Reexamination [Member]
Loss Contingency, Claims Dismissed, Number		99
Patent 993 [Member] | Prior Rejected Claims [Member] | Subsequent Event [Member]
Loss Contingency, Claims Settled, Number	99

Note 8 - Summary of Future Mini

Note 8 - Summary of Future Minimum Operating Lease Commitments (Details)	Mar. 31, 2016USD ($)
2,017	$ 715,128
2,018	563,011
2,019	465,187
2,020	471,863
2,021	358,289
Thereafter	270,186
Total	$ 2,843,664

Note 9 - Stockholders Equity (D

Note 9 - Stockholders Equity (Details Textual) - USD ($)	1 Months Ended	3 Months Ended
	Nov. 30, 2012	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Mr Herman [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights	5,185,714
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 0.55
Warrants Expiration Period	5 years
Warrant [Member]
Share Based Compensation Warrants Outstanding		150,001		150,001
Option Plan 2010 Member | Consultant [Member]
Stock Issued During Period, Shares, Issued for Services		3,031
Allocated Share-based Compensation Expense		$ 1,700
Stock Issued from Exercise of Warrants		0	100,000
Class of Warrant or Right, Issued During Period		0
Proceeds from Warrant Exercises			$ 77,100
Aggregate Intrinsic Value Of Warrants Exercised			102,000
Allocated Share-based Compensation Expense		$ 150,433	$ 91,060

Note 9 - Summary of Warrant Act

Note 9 - Summary of Warrant Activity (Details) - Warrant [Member] - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Outstanding, shares (in shares)	150,001
Outstanding, weighted average exercise price (in dollars per share)	$ 0.55
Outstanding, Weighted Average Remaining Contractual Life	1 year 255 days	1 year 328 days
Outstanding, aggregate intrinsic value
Exercised (in shares)
Exercised (in dollars per share)
Outstanding, shares (in shares)	150,001	150,001
Outstanding, weighted average exercise price (in dollars per share)	$ 0.55	$ 0.55
Outstanding, aggregate intrinsic value	$ 4,500
Exercisable, Shares (in shares)	150,001
Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 0.55
Exercisable, Weighted Average Remaining Contractual Life	1 year 255 days
Exercisable, Aggregate Intrinsic Value	$ 4,500

Note 10 - Stock Options (Detail

Note 10 - Stock Options (Details Textual) - USD ($)	Jan. 02, 2016	Jul. 27, 2010	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Option Plan 2010 Member | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	1 year
Option Plan 2010 Member | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Option Plan 2010 Member
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Maximum		15.00%
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	5,719,069
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	38,127,129		3,580,668
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	5 years
Cashless Exercise [Member]
Number Of Common Shares Options Exercised			0	600,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period				463,698
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period				136,302
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value				$ 970,125
Exercised For Cash Payments [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period				29,867
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value				$ 40,951
Proceeds from Stock Options Exercised				$ 14,634
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number			3,580,668		3,485,168
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period			130,000	230,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value			$ 0.24	$ 1.22
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period			34,500
Proceeds from Stock Options Exercised				$ 14,634
Allocated Share-based Compensation Expense			$ 150,433	$ 91,060
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized			$ 889,292
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition			2 years 146 days

Note 10 - Summary of Stock Valu

Note 10 - Summary of Stock Valuation Assumptions (Details)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Minimum [Member]
Expected volatility	85.00%
Risk-free interest rate	1.10%
Maximum [Member]
Expected volatility	102.00%
Risk-free interest rate	1.20%
Expected volatility		109.00%
Risk-free interest rate		0.80%
Forfeiture rate	0.00%	0.00%
Dividend yield	0.00%
Expected term (in years)	3 years 113 days	3 years 102 days

Note 10 - Summary of Stock Opti

Note 10 - Summary of Stock Option Activity (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Outstanding, Shares (in shares)	3,485,168
Outstanding, weighted average exercise price (in dollars per share)	$ 1.31
Outstanding, weighted average remaining contractual term	2 years 131 days	2 years 193 days
Outstanding, aggregate intrinsic value	$ 63,067
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	130,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$ 0.41
Exercised, Shares (in shares)
Exercised, Weighted Average Exercise Price (in dollars per share)
Forfeited or Expired, Shares (in shares)	(34,500)
Forfeited or Expired, Weighted Average Exercise Price (in dollars per share)	$ 1.65
Outstanding, Shares (in shares)	3,580,668	3,485,168
Outstanding, weighted average exercise price (in dollars per share)	$ 1.27	$ 1.31
Outstanding, aggregate intrinsic value	$ 117,100	$ 63,067
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number	3,580,668
Vested or Expected to Vest at March 31, 2016 (in dollars per share)	$ 1.27
Vested or Expected to Vest at March 31, 2016	2 years 131 days
Vested or Expected to Vest at March 31, 2016	$ 117,100
Exercisable, Shares (in shares)	2,637,832
Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 1.16
Exercisable, weighted average remaining contractual term	1 year 288 days
Exercisable, aggregate intrinsic value	$ 94,600

Note 10 - Summary of the Status

Note 10 - Summary of the Status of Non-vested Shares (Details) - $ / shares	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Balance, non-vested (in shares)	1,323,669
Balance, non-vested (in dollars per share)	$ 1.22
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	130,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 0.24	$ 1.22
Vested (in shares)	(486,333)
Vested (in dollars per share)	$ 1.20
Forfeited (in shares)	(24,500)
Forfeited (in dollars per share)	$ 1.25
Balance, non-vested (in shares)	942,836
Balance, non-vested (in dollars per share)	$ 1.09

Note 11 - Subsequent Events (De

Note 11 - Subsequent Events (Details Textual) - $ / shares	May. 05, 2016	Mar. 31, 2016
Subsequent Event [Member] | Management and Key Employees [Member] | Scenario, Forecast [Member] | Share-based Compensation Award, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number	541,666
Subsequent Event [Member] | Management and Key Employees [Member] | Scenario, Forecast [Member] | Share-based Compensation Award, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number	541,666
Subsequent Event [Member] | Management and Key Employees [Member] | Scenario, Forecast [Member] | Share-based Compensation Award, Tranche Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number	291,668
Subsequent Event [Member] | Management and Key Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	1,375,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$ 0.60
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross		130,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price		$ 0.41
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number		3,580,668