LiqTech International (LIQT) 10-K 23 Mar 16 2015 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2015	Mar. 23, 2016	Jun. 30, 2015
Entity Registrant Name	LIQTECH INTERNATIONAL INC
Entity Central Index Key	1,307,579
Trading Symbol	liqt
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)		39,532,035
Entity Public Float			$ 18,230,786
Document Type	10-K
Document Period End Date	Dec. 31, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	FY
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Current Assets:
Cash	$ 1,370,591	$ 5,853,752
Restricted cash balances	292,826	218,879
Accounts receivable, net	3,191,858	1,992,206
Other receivables	505,945	344,331
Cost in excess of billing	2,519,321	1,172,658
Inventories	4,916,671	4,914,866
Prepaid expenses	13,670	55,990
Current deferred tax asset	172,122	109,637
Total Current Assets	12,983,004	14,662,319
Property and Equipment, net accumulated depreciation:	3,538,694	4,524,386
Other Assets:
Investments at costs	21,838	6,085
Long term deferred tax asset	3,684,497	3,496,459
Goodwill	7,582,749	8,460,512
Other intangible assets	10,386	16,708
Deposits	252,378	259,070
Total Other Assets	11,551,848	12,238,834
Total Assets	28,073,546	31,425,539
Current Liabilities:
Current portion of capital lease obligations	150,157	170,187
Accounts payable	3,455,085	2,336,942
Accrued expenses	1,441,840	$ 1,439,735
Billing in excess of cost	175,338
Accrued income taxes payable	570	$ 570
Deferred revenue / customers deposits	117,700	144,476
Total Current Liabilities	5,340,690	4,091,910
Long-term capital lease obligations, less current portion	165,572	368,614
Total Long-Term Liabilities:	165,572	368,614
Total Liabilities	$ 5,506,262	$ 4,460,524
Commitment and Contingencies See Note 10
Stockholders' Equity:
Common stock; par value $0,001, 100,000,000 shares authorized, 39,532,035 and 39,404,782 shares issued and outstanding at December 31, 2015 and December 31, 2014, respectively	$ 39,532	$ 39,405
Additional paid-in capital	36,087,808	35,632,410
Accumulated deficit	(7,592,709)	(5,382,852)
Deferred compensation	(590,742)	(504,748)
Other comprehensive income, net	$ (5,376,605)	(2,835,917)
Non-controlled interest in subsidiaries		16,717
Total Stockholders' Equity	$ 22,567,284	26,965,015
Total Liabilities and Stockholders' Equity	$ 28,073,546	$ 31,425,539

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - $ / shares	Dec. 31, 2015	Dec. 31, 2014
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	39,532,035	39,404,782
Common stock, shares outstanding (in shares)	39,532,035	39,404,782

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Net Sales	$ 15,812,587	$ 14,561,192
Cost of Goods Sold	12,598,163	12,463,949
Gross Profit	3,214,424	2,097,243
Operating Expenses:
Selling expenses	2,721,781	3,360,566
General and administrative expenses	2,814,747	3,019,094
Non-cash compensation expenses	369,531	573,029
Research and development expenses	707,844	336,066
Total Operating Expense	6,613,903	7,288,755
Loss from Operations	(3,399,479)	(5,191,512)
Other Income
Interest and other Income	98,171	10,511
Interest expense	(51,232)	(53,379)
Gain (Loss) on investments	7,253	(815)
Gain on currency transactions	459,279	450,147
Total Other Income	513,471	406,464
Loss Before Income Taxes	(2,886,008)	(4,785,048)
Income Tax Benefit	697,786	1,702,551
Net Loss	(2,188,222)	(3,082,497)
Less Net Income (Loss) Attributable To Non-Controlled Interests in Subsidiaries	21,635	(16,429)
Net Loss Attributable To LiqTech	$ (2,209,857)	$ (3,066,068)
Basic Loss Per Share (in dollars per share)	$ (0.06)	$ (0.09)
Weighted average number of common shares used in basic earnings per share (in shares)	39,486,941	32,398,941
Diluted Loss Per Share (in dollars per share)	$ (0.06)	$ (0.09)
Weighted average number of common shares and potential dilutive common shares outstanding used in dilutive earnings per share (in shares)	39,486,941	32,398,941

Consolidated Statements of Othe

Consolidated Statements of Other Comprehensive Income - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Net Loss	$ (2,188,222)	$ (3,082,497)
Currency Translation, Net of Taxes	(2,540,688)	(2,543,352)
Other Comprehensive Loss	$ (4,728,910)	(5,625,849)
Comprehensive Income (Loss) Attributable To Non-controlling Interest in Subsidiaries		(2,628)
Comprehensive Loss Attributable To LiqTech International Inc.	$ (4,728,910)	$ (5,623,221)

Consolidated Statement of Stock

Consolidated Statement of Stockholders' Equity - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Deferred Compensation, Share-based Payments [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Dec. 31, 2013	27,212,500
Balance at Dec. 31, 2013	$ 27,213	$ 18,700,574	$ (2,316,784)	$ (292,565)	$ (1,008,450)	$ 24,559
Stock Issued During Period, Shares, New Issues | Issued for Cash [Member]	8,000,000
Stock Issued During Period, Shares, New Issues | Issued for Services Provided and to be Provided 1 [Member]	100,000
Common shares issued | Issued for Cash [Member]	$ 8,000	10,728,279
Common shares issued | Issued for Services Provided and to be Provided 1 [Member]	$ 100	157,900			$ (158,000)
Common shares issued in connection with acquisition at $1.50 per share, July 2014 (in shares)	4,044,782
Common shares issued in connection with acquisition at $1.50 per share, July 2014	$ 4,045	6,063,127
Common shares issued (in shares) | Issued for Cash [Member]	8,000,000
Common shares issued (in shares) | Issued for Services Provided and to be Provided 1 [Member]	100,000
Exercised of warrants and stock options at $1.50 (in shares)	47,500
Exercised of warrants and stock options at $1.50	$ 48	71,203
Forfeiture of Stock Based Compensation		(563,459)			$ 563,459
Deferred compensation on shares issued to the board of directors, employers and services		$ 474,786			(474,786)
Stock based compensation expenses recognized for the year ended					$ 573,029
Currency translation, net				$ (2,543,352)		$ (7,842)	$ (2,543,352)
Net Income (Loss) attributable to LiqTech International Inc.			$ (3,066,068)				(3,066,068)
Balance (in shares) at Dec. 31, 2014	39,404,782
Balance at Dec. 31, 2014	$ 39,405	$ 35,632,410	$ (5,382,852)	$ (2,835,917)	$ (504,748)	$ 16,717
Stock Issued During Period, Shares, New Issues | Issued for Services Provided and to be Provided 2 [Member]	27,253
Stock Issued During Period, Shares, New Issues | Issued for Services Provided and to be Provided 1 [Member]	100,000
Common shares issued | Issued for Services Provided and to be Provided 2 [Member]	$ 27	20,140			(20,167)
Common shares issued | Issued for Services Provided and to be Provided 1 [Member]	$ 100	74,900			(75,000)
Common shares issued (in shares) | Issued for Services Provided and to be Provided 2 [Member]	27,253
Common shares issued (in shares) | Issued for Services Provided and to be Provided 1 [Member]	100,000
Forfeiture of Stock Based Compensation		(31,188)			31,188
Deferred compensation on shares issued to the board of directors, employers and services		$ 391,546			(391,546)
Stock based compensation expenses recognized for the year ended					$ 369,531
Currency translation, net				$ (2,540,688)		$ (16,717)	(2,540,688)
Net Income (Loss) attributable to LiqTech International Inc.			$ (2,209,857)				$ (2,209,857)
Balance (in shares) at Dec. 31, 2015	39,532,035
Balance at Dec. 31, 2015	$ 39,532	$ 36,087,808	$ (7,592,709)	$ (5,376,605)	$ (590,742)	$ 0

Consolidated Statement of Stoc7

Consolidated Statement of Stockholders' Equity (Parentheticals) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Additional Paid-in Capital [Member] | Issued for Cash [Member]
Common shares issued, per share (in dollars per share)		$ 1.50
Additional Paid-in Capital [Member] | Issued for Services Provided and to be Provided 1 [Member]
Common shares issued, per share (in dollars per share)	$ 0.75	$ 1.58
Additional Paid-in Capital [Member] | Issued for Services Provided and to be Provided 2 [Member]
Common shares issued, per share (in dollars per share)	$ 0.74
Additional Paid-in Capital [Member]
Common shares issued for cash, net offering cost		$ 1,263,721
Common shares issued in connection with acquisition (in dollars per share)		$ 1.50
Exercised of warrants and stock options, price per share (in dollars per share)		$ 1.50
Common shares issued for cash, net offering cost		$ 1,263,722

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Employee Stock Option [Member]
Adjustments to reconcile net (loss) to net cash provided (used) by operations:
Non-cash compensation	$ 154,745	$ 34,295
Supplemental Disclosures of Non-Cash Investing and Financing Activities:
Non-cash compensation	154,745	34,295
Restricted Stock [Member]
Adjustments to reconcile net (loss) to net cash provided (used) by operations:
Non-cash compensation	204,500	479,334
Supplemental Disclosures of Non-Cash Investing and Financing Activities:
Non-cash compensation	204,500	479,334
Warrants Issued for Services [Member]
Adjustments to reconcile net (loss) to net cash provided (used) by operations:
Non-cash compensation	10,286	59,400
Supplemental Disclosures of Non-Cash Investing and Financing Activities:
Non-cash compensation	10,286	59,400
Net Loss	(2,188,222)	(3,082,497)
Depreciation and amortization	1,444,109	1,630,531
Non-cash compensation	369,531	573,029
Bad debt expense	(80,729)	(216,919)
Bad debt expense	80,729	216,919
Reserve for obsolete inventory	174,143	203,996
Change in deferred tax asset / liability	$ (250,523)	(1,206,796)
Loss on sale of equipment		946
Loss on Long- term investments		797
(Increase) decrease in restricted cash	$ (73,947)	(218,879)
(Increase) decrease in accounts receivable	(1,280,537)	877,457
(Increase) decrease in inventory	(175,948)	712,273
(Increase) decrease in prepaid expenses/deposits	49,012	(15,245)
Increase (decrease) in accounts payable	1,118,143	(2,682,139)
Increase (decrease) in accrued expenses	(24,671)	(2,152,657)
Increase (decrease) long-term contracts	(1,171,325)	(591,409)
Total Adjustments	97,258	(2,651,177)
Net Cash Used by Operating Activities	(2,090,964)	(5,733,674)
Purchase of property and equipment	$ (576,278)	(456,432)
Net cash paid to purchase LiqTech Systems		$ (1,874,684)
Purchase of long-term investments	$ (16,378)
Net Cash Used by Investing Activities	$ (592,656)	$ (2,331,116)
Payments on notes payable		(131,559)
Net payments proceeds on capital lease obligation	$ (223,072)	(223,978)
Proceeds from issuance of common stock and warrants		12,071,250
Payment of stock offering costs		(1,263,722)
Net Cash Provided (Used) by Financing Activities	$ (223,072)	10,451,991
Loss on Currency Translation	1,576,469	1,417,724
Net Increase (decrease) in Cash and Cash Equivalents	(4,483,161)	969,477
Cash and Cash Equivalents at Beginning of Period	5,853,752	4,884,275
Cash and Cash Equivalents at End of Period	1,370,591	5,853,752
Interest	51,232	53,379
Income Taxes	570	1,000
Non-cash compensation	369,531	573,029
Total	$ 369,531	$ 573,029

Consolidated Statements of Cas9

Consolidated Statements of Cash Flows (Parentheticals)	12 Months Ended
	Dec. 31, 2014USD ($)shares
Common shares (in shares) | shares	4,044,782
Common shares, cash | $	$ 2,300,000

Note 1 - Summary of Significant

Note 1 - Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Significant Accounting Policies [Text Block]	NOTE 1 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Business and Basis of Presentation The consolidated financial statements include the accounts of LiqTech International, Inc. (“Parent”) and its subsidiaries. The terms "Company", “us", "we" and "our" as used in this report refer to Parent and its subsidiaries, which are set forth below. The Company engages in the development, design, production, marketing and sale of automated filtering systems, liquid filters, diesel particulate air filters and kiln furniture in United States, Canada, Europe, Asia and South America. Set forth below is a description of Parent and each of its subsidiaries: LiqTech International, Inc., a Nevada corporation organized in July 2004, formerly known as Blue Moose Media, Inc. LiqTech USA, a Delaware corporation and a wholly-owned subsidiary of Parent formed in May 2011. LiqTech International AS, a Danish corporation, incorporated on January 15, 2000 (“LiqTech Int. DK”), a 100% owned subsidiary of LiqTech USA, engages in development, design, application, marketing and sales of membranes on ceramic diesel particulate and liquid filters and catalytic converters in Europe, Asia and South America. LiqTech NA, Inc. (“LiqTech NA”), incorporated in Delaware on July 1, 2005, a 100% owned subsidiary of LiqTech USA. LiqTech NA, Inc. engages in the production, marketing and sale of ceramic diesel particulate and liquid filters and kiln furniture in United States and Canada. LiqTech Asia (“LiqTech Asia”) a 60% owned subsidiary of LiqTech Int. DK, incorporated in South Korea on July 20, 2006, was a dormant subsidiary. The company was closed on March 6, 2015. LiqTech Germany (“LiqTech Germany”) a 100% owned subsidiary of LiqTech Int. DK, incorporated in Germany on December 9, 2011, engages in marketing and sale of liquid filters in Germany. The Company is in the process of closing operations, which is expected to be completed during 2016. LiqTech PTE Ltd, (“LiqTech Sing”) a 95% owned subsidiary of LiqTech Int. DK, incorporated in Singapore on January 19, 2012, engages in marketing and sale of liquid filters in Singapore and other countries in the area. The Company is in the process of closing operations, which is expected to be completed during 2016. LiqTech Systems AS, a Danish Corporation ("LiqTech Systems") (Formerly Provital Solutions A/S) was incorporated on September 1, 2009 and engages in the manufacture of fully automated filtering systems for application within the pool and spa markets, marine applications, and a number of industrial applications within Denmark and international markets. The financial statements include the accounts of LiqTech Systems from the date of acquisition on July 31, 2014. Consolidation -- Functional Currency / Foreign currency translation -- Cash, Cash Equivalents and Restricted Cash -- F- 9 Accounts Receivable -- The roll forward of the allowance for doubtful accounts for the year ended December 31, 2015 and December 31, 2014 is as follows: 2015 2014 Allowance for doubtful accounts at the beginning of the period $ 1,654,290 $ 608,356 Bad debt expense 80,729 216,919 Amount of receivables written off (398,083 ) (42,117 ) Acquired subsidiary - 951,354 Effect of currency translation (249,065 ) (80,222 ) Allowance for doubtful accounts at the end of the period $ 1,087,871 $ 1,654,290 Inventory -- Property and Equipment -- Long-Term Investments -- Intangible Assets -- Goodwill Revenue Recognition and Sales Incentives -- The Company has received long-term contracts for the installation of various water filtrations systems and grants from government entities for development and use of silicon carbide membranes in various water filtration and treatment applications. Revenues from long-term contracts and grants are recognized on the percentage-of-completion method, measured by the percentage of project costs incurred to date to estimated total project costs for each long-term contract or grant multiplied by the long-term contract or grant income on a project by project basis. This method is used because management considers costs incurred to be the best available measure of progress on contracts in process. Project costs of the long-term contracts and grants include all direct material and labor costs and those indirect costs related to the project. Project costs are capitalized and accreted into cost of sales based on the percentage of the project completed. Should a loss be estimated on an incomplete project it would be recorded in the period in which such a loss is determined. Changes in estimated profitability of a project are recognized in the period in which the revisions are determined. The aggregate of costs incurred and income recognized on incomplete projects are recorded as costs in excess of billings and are shown as a current asset. The aggregate of billings in excess of related costs incurred and income recognized on projects is shown as a current liability. F- 10 In Denmark, Value Added Tax (“VAT”) of 25% of the invoice amount is collected in respect of the sales of goods on behalf of tax authorities. The VAT collected is not revenue of the Company; instead, the amount is recorded as a liability on the balance sheet until such VAT is paid to the authorities. Advertising Cost -- Research and Development Cost -- Income Taxes -- Income (Loss) Per Share -- Stock Options and Awards -- Fair Value of Financial Instruments -- ● Level 1. Observable inputs such as quoted prices in active markets for identical assets or liabilities; ● Level 2. Inputs, other than the quoted prices in active markets, that are observable either directly or indirectly; and ● Level 3. Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions. Unless otherwise disclosed, the fair value of the Company’s financial instruments including cash, accounts receivable, prepaid expenses, investments, accounts payable, accrued expenses, capital lease obligations and notes payable approximates their recorded values due to their short-term maturities. Accounting Estimates -- Recent Accounting Pronouncements -- In 2015, the FASB issued an amended standard requiring that we classify all deferred tax assets and liabilities as non-current on the balance sheet instead of separating deferred taxes into current and non-current. The amended standard is effective for us beginning in the first quarter of 2017; early adoption is permitted and we are evaluating whether we will early adopt. The amended standard may be adopted on either a prospective or retrospective basis. We do not expect that the adoption of this standard will have a significant impact on our financial position or results of operations. In February 2016, the FASB issued changes to the accounting for leases that primarily affect presentation and disclosure requirements. The new standard will require the recognition of a right to use asset and underlying lease liability for operating leases with an initial life in excess of one year. This standard is effective for us beginning in the first quarter of 2019. We have not yet determined the impact of the new standard on our consolidated financial statements. Other recent accounting pronouncements issued by the FASB did not or are not believed by management to have a material impact on the Company’s present or future financial statements.

Note 2 - Related Party Transact

Note 2 - Related Party Transactions	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Related Party Transactions Disclosure [Text Block]	NOTE 2 - RELATED PARTY TRANSACTIONS Consulting Agreements -- On November 2013, the Company entered in a consulting agreement with John Nemelka a former board member and brother of a shareholder, wherein the Company agreed to pay John Nemelka $60,000 a year for a two year minimum for advice to, undertake for and consult with the Company on certain matters pertaining to the Company’s business as shall be specified from time to time by the Company’s Chief Executive Officer, other officers or the Board of Directors. Payments to Related Parties -- During October and December of 2014, an officer of LiqTech NA provided $25,000 and $35,000 in non-interest bearing advances to the Company totaling $60,000. These advances have been included in accounts payable at December 31, and were repaid in January 2015.

Note 3 - Inventory

Note 3 - Inventory	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Inventory Disclosure [Text Block]	NOTE 3 - INVENTORY Inventory consisted of the following at December 31, 2015 and December 31, 2014: 2015 2014 Furnace parts and supplies $ 466,538 $ 507,849 Raw materials 1,498,406 1,501,050 Work in process 1,770,070 1,326,840 Finished goods and filtration systems 1,788,161 2,028,225 Reserve for obsolescence (606,504 ) (449,098 ) Net Inventory $ 4,916,671 $ 4,914,866 The inventory is held as collateral on a lines and credit and guarantees with financial institutions. See Note 8.

Note 4 - Property and Equipment

Note 4 - Property and Equipment	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	NOTE 4 - PROPERTY AND EQUIPMENT Property and equipment consisted of the following at December 31, 2015 and December 31, 2014: Useful Life 2015 2014 Production equipment 3 - 10 $ 10,536,377 $ 10,792,494 Lab equipment 3 - 10 143,783 160,427 Computer equipment 3 - 5 269,526 288,351 Vehicles 3 - 5 40,365 93,477 Furniture and fixture 5 141,502 180,138 Leasehold improvements 10 972,023 1,052,923 12,103,576 12,567,810 Less Accumulated Depreciation (8,564,882) (8,043,424 ) Net Property and Equipment $ 3,538,694 $ 4,524,386 Depreciation expense amounted to $1,437,787 and $1,622,552, for the year ended December 31, 2015 and 2014, respectively. The property and equipment is held as collateral on a lines of credit and guarantees with financial institutions. See Note 8.

Note 5 - Investments at Costs

Note 5 - Investments at Costs	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	NOTE 5 – INVESTMENTS AT COST The following tables summarize Level 1, 2 and 3 financial assets and financial (liabilities) by their classification in the Statement of Financial Position: As of December 31, 2015 Level 1 Level 2 Level 3 Investments - - 21,838 Total - - 21,838 As of December 31, 2014 Level 1 Level 2 Level 3 Investments - - 6,085 Total - - 6,085 At December 31, 2015, our total investments of $21,838 consisted of an investment of $5,460 in LEA Technology in France to strengthen our sales channels in the French market and an investment of $16,378 in LiqTech Italy, a newly organized Italian Company, to strengthen our sales channels in the Italian market. At December 31, 2014, our total investments of $6,085 consisted of an investment of $6,085 in LEA Technology. During December 31, 2014 the Company contributed $815 to Bio Filtration Technology, a Danish company developing a biofuel and manure concentration technology, which the Company owns a 15% interest. During December 31, 2014 the Company wrote off $815 the investment due to uncertainties about the future free cash flow that can be generated from the investment.

Note 6 - Definite-life Intangib

Note 6 - Definite-life Intangible Assets	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Intangible Assets Disclosure [Text Block]	NOTE 6 - DEFINITE-LIFE INTANGIBLE ASSETS At December 31, 2015 and December 31, 2014, definite-life intangible assets, net of accumulated amortization, consisted of patents on the Company’s products of $10,386 and $16,708, respectively. The patents are recorded at cost and amortized over two to ten years. Amortization expense for the years ended December 31, 2015 and 2014 was $6,322 and $7,979, respectively. Expected future amortization expense for the years ended are as follows: Year ending December 31, Amortization Expenses 2016 $ 4,589 2017 2,787 2018 2,344 2019 666 Thereafter - $ 10,386

Note 7 - Goodwill

Note 7 - Goodwill	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Goodwill Disclosure [Text Block]	NOTE 7 - GOODWILL The following is a summary of goodwill: December 31, 2015 Goodwill at beginning of period $ 8,460,512 Effect of currency translation (877,763 ) Goodwill at end of period $ 7,582,749 Goodwill consists of: December 31, 2015 LiqTech Systems A/S (Formerly Provital Solutions A/S) $ 7,582,749 Goodwill is evaluated for impairment annually in the fourth quarter of the Company’s fiscal year, and whenever events or changes in circumstances indicate the carrying value of goodwill may not be recoverable. Triggering events that may indicate impairment include, but are not limited to, a significant adverse change in customer demand or business climate that could affect the value of goodwill or a significant decrease in expected cash flows. Key variables included in evaluating goodwill for impairment include the pipeline of proposed potential customer sales, budgeted reoccurring sales, risk free interest rate and risk premium rate and future budgeted operating results. The company recorded no impairment charge on goodwill, during the years ended December 31, 2015 and 2014 as managements estimated fair value of the reporting unit exceeded the carrying value. During December 2014, an adjustment was made to the goodwill acquired in the acquisition of goodwill for $775,788 in allowances established against acquired receivables and $196,255 in additional costs recorded on long-term contacts net of $135,990 in taxes.

Note 8 - Lines of Credit

Note 8 - Lines of Credit	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Debt Disclosure [Text Block]	NOTE 8 - LINES OF CREDIT In connection with certain orders, we have to give the customer a working guarantee or a prepayment guarantee or security bond. For that purpose, we have a guarantee line of DKK 473,100 (approximately $69,000 at December 31, 2015) with a bank, subject to certain base limitations. As of December 31, 2015, we had DKK473,100 (approximately $69,000) in working guarantee against the line. This line of credit is guaranteed by Vækstfonden (the Danish state's investments fund) and is secured by certain assets of LiqTech Systems such as receivables, inventory and equipment.

Note 9 - Leases

Note 9 - Leases	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Leases of Lessee Disclosure [Text Block]	NOTE 9 - LEASES Operating Leases -- The future minimum lease payments for non-cancelable operating leases having remaining terms in excess of one year as of December 31, 2015 are as follows: Year ending December 31, Lease Payments 2016 715,965 2017 516,949 2018 294,853 Thereafter - Total Minimum Lease Payments $ 1,527,767 Lease expense charged to operations was $697,736 and $747,558, for the year ended December 31, 2015, and 2014. Capital Leases -- 062 and $997,645, respectively. During the years ended December 31, 2015 and 2014, depreciation expense for equipment on capital lease amounted to $141,050, and $212,443, respectively, and has been included in depreciation expense. During the years ended December 31, 2015 and 2014, interest expense on a capital lease obligation amounted to $26,840 and $43,595, respectively. Future minimum capital lease payments are as follows for the years ended December 31: Year ending December 31, Lease Payments 2016 $ 187,863 2017 125,605 2018 24,492 Thereafter - Total minimum lease payments 337,960 Less amount representing interest (22,231 ) Present value of minimum lease payments 315,729 Less Current Portion (150,157 ) $ 165,572

Note 10 - Agreements, Commitmen

Note 10 - Agreements, Commitments and Contingencies	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	NOTE 10 - AGREEMENTS, COMMITMENTS AND CONTINGENCIES 401(K) Profit Sharing Plan -- LiqTech NA has a 401(k) profit sharing plan and trust covering certain eligible employees. The amount LiqTech NA contributes is discretionary. For the year ending December 31, 2015 and 2014, matching contributions were expensed and totaled $14,610 and $16,743, respectively. Contingencies -- On September 9, 2014, Mr. Raffaele Bruno Tronchetti Provera (“Plaintiff”), the 60% owner of LiqTech Italy s.r.l. (the “Venture”), sued LiqTech International A/S, the 40% owner of the Venture (“Defendant”), for an amount of euro 750,000 (approximately $690,000 at December 31, 2015) before the Court of Como, Italy alleging, among other things, that certain products provided by Defendant to the Venture were defective. As of March 18, 2016, the case is in a preliminary stage where the court has appointed an expert in order to verify the quality of the products in order to determine whether there is sufficient evidence to proceed. An evaluation of the outcome will only be possible after the results of the court appointment expert are known. The defendant believes that the claims are without merit and intends to vigorously defend any litigation. In connection with certain orders, we have to give the customer a working guarantee or a prepayment guarantee or security bond. For that purpose, we have a guarantee line of DKK 473,100 (approximately $69,000 at December 31, 2015) with a bank, subject to certain base limitations. As of December 31, 2015, we had DKK473,100 (approximately $69,000) in working guarantee against the line. At December 31, 2015, the Company had a cash balance of $292,826 that is restricted to secure work issued by the Company that is not part of the above line of credit.

Note 11 - Income Taxes

Note 11 - Income Taxes	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Income Tax Disclosure [Text Block]	NOTE 11 - INCOME TAXES The Company accounts for income taxes in accordance with FASB ASC Topic 740, Accounting for Income Taxes; which requires the Company to provide a net deferred tax asset or liability equal to the expected future tax benefit or expense of temporary reporting differences between book and tax accounting and any available operating loss or tax credit carry forwards. The amount of and ultimate realization of the benefits from the deferred tax assets for income tax purposes is dependent, in part, upon the tax laws in effect, the Company’s future earnings, and other future events, the effects of which cannot be determined. In accordance with prevailing accounting guidance, the Company is required to recognize and disclose any income tax uncertainties. The guidance provides a two-step approach to recognizing and measuring tax benefits and liabilities when realization of the tax position is uncertain. The first step is to determine whether the tax position meets the more-likely-than-not condition for recognition and the second step is to determine the amount to be recognized based on the cumulative probability that exceeds 50%, Actual results could differ from these estimates. Current tax planning strategies , including our new Business Plan strategy , have management estimating that it is more likely not that the business units will be able to generate pretax profit equal to or in excess of the net operating loss carryforwards. As of December 31, 2015 the Company had net operating loss carryovers of approximately $8,420,000 for U.S. Federal purposes expiring through 2035; approximately $5,650,000 for Danish tax purposes which do not expire; approximately $112,000 for German tax purposes which do not expire and approximately $116,000 for Singapore tax purposes which do not expire. As of December 31, 2015 and 2014, the Company established a valuation allowance of $228,170 and $118,328 for the tax paying components LiqTech Singapore and LiqTech Germany as management could not determine that it was more than likely not that sufficient income could be generated by these components to realize the resulting net operating loss carry forwards of these components. The change in the valuation for the years ended December 31, 2015 and 2014 was $109,842 and $118,328, respectively. The Company is not relying on the reversal of deferred tax liabilities to realize the deferred tax assets. The same variable used by the Company in evaluating goodwill for impairment were used in assessing the realization of deferred tax assets (See Note 7). Other tax planning strategies include allocating sales orders to the tax paying component with production capacity and geographical proximity, assessing an intercompany management fee to allocate administration cost between revenue generating tax components. The Company further considered the following positive and negative evidence: Positive Evidence 1) The Company acquired LiqTech Systems AS on July 2014. LiqTech Systems designs water treatment system for pool filtration around the silicon carbide manufactured by LiqTech International AS. Synergies realized by the acquisition include accelerating the change of business strategy to manufacture and offer full water treatment systems. 2) During 2015, the Company secured and manufactured water treatment systems in the pool filtration, pre drinking water filters, ground water filtration, oil and gas, marine waste water, and mining industries. 3) The Company had profitable 2015 third and fourth quarter results. The Company noted a significant increase in proposed sales pipeline from December 31, 2014 to 2015. 4) The Company executed in June 2015 a Diesel Particular Filtration supplier contract in China. 5) For Danish tax purposes the Company is able to obtain tax refunds for research and development expenditures Negative Evidence 1) The Company has noted a longer than anticipated sales cycle from proposals to signing filtration systems order. 2) The Company has a net loss from operations for the year ended December 31, 2015. 3) The Company has experienced a decrease in DPF sales. The temporary differences, tax credits and carry forwards gave rise to the following deferred tax asset (liabilities) at December 31, 2015 and December 31, 2014: 2015 2014 Vacation accrual $ 3,933 $ 5,077 Allowance for doubtful Accounts 14,089 13,955 Reserve for obsolete inventory 154,100 90,605 Net current tax assets $ 172,122 $ 109,637 Business tax credit carryover 30,935 25,709 Deferred compensation - 171,615 Net operating loss carryover 4,333,820 4,001,198 Excess of book over tax depreciation (452,088 ) (583,735 ) Valuation Allowance (228,170 ) (118,328 ) Long term deferred tax asset $ 3,684,497 $ 3,496,459 A reconciliation of income tax expense at the federal statutory rate to income tax expense at the Company’s effective rate is as follows for the years ended December 31, 2015 and 2014: 2015 2014 Computed tax at expected statutory rate $ (991,139 ) $ (2,313,668 ) State and local income taxes, net of federal benefits (20,476 ) (5,307 ) Non-deductible expenses 5,291 12,711 Non-US income taxed at different rates 47,837 480,085 Non-deductible deferred compensation 140,175 - Effect of changes in tax rates (31,748 ) - Non-deductible loss of subsidiaries 50,579 - Valuation Allowance 109,842 118,328 Other items (8,147 ) 5,300 Income tax expense (benefit) $ (697,786 ) $ (1,702,551 ) The components of income tax expense (benefit) from continuing operations for the years ended December 31, 2015 and 2014 consisted of the following: 2015 2014 Current income tax expense: Danish $ (266,107 ) $ (336,868 ) Korean - 600 Federal - - State 570 570 Current tax (benefit) $ (265,537 ) $ (335,698 ) Book in excess of tax depreciation $ (136,572 ) $ (151,131 ) Deferred rent - - Business tax credit carryover (5,226 ) (5,525 ) Net operating loss carryover (517,153 ) (1,347,132 ) Allowance for doubtful accounts 156,036 118,328 Deferred compensation - - Accrued Vacation 1,143 (916 ) Deferred Compensation 171,615 26,815 Reserve for obsolete inventory (102,092 ) (7,292 ) Deferred tax expense (benefit) $ (432,249 ) $ (1,366,853 ) Total tax expense (benefit) $ (697,786 ) $ (1,702,551 ) Deferred income tax expense / (benefit) results primarily from the reversal of temporary timing differences between tax and financial statement income. The Company files Danish and U.S. federal and Minnesota state income tax returns. LiqTech International AS is generally no longer subject to tax examinations for years prior to 2010 for their Danish tax returns. LiqTech NA is generally no longer subject to tax examinations for years prior to 2012 for U.S. federal and U.S. states tax returns.

Note 12 - Earnings Per Share

Note 12 - Earnings Per Share	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Earnings Per Share [Text Block]	NOTE 12 - EARNINGS PER SHARE The following data shows the amounts used in computing earnings per share and the effect on income and the weighted average number of shares of potential dilutive common stock for the year ended December 31, 2015 and 2014: For the Year Ended December 31 2015 2014 Net Income (Loss) attributable to LiqTech International Inc. $ (2,209,857 ) $ (3,066,068 ) Weighted average number of common shares used in basic earnings per share 39,486,941 32,398,941 Effect of dilutive securities, stock options and warrants - - Weighted average number of common shares and potential dilutive common shares outstanding used in dilutive earnings per share 39,486,941 32,398,941 For the year ended December 31, 2015, Parent had 1,071,000 options outstanding to purchase common stock of Parent at $0.74 to $1.90 per share and Parent had 7,225,575 warrants outstanding to purchase common stock of Parent at $1.00 to $4.06 per share, which were not included in the loss per share computation because their effect would be anti-dilutive. For the year ended December 31, 2014, Parent had 1,960,130 options outstanding to purchase common stock of Parent at $1.50 to $3.60 per share and Parent had 7,025,575 warrants outstanding to purchase common stock of Parent at $1.50 to $4.06 per share, which were not included in the loss per share computation because their effect would be anti-dilutive.

Note 13 - Stockholders' Equity

Note 13 - Stockholders' Equity	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	NOTE 13 - STOCKHOLDERS' EQUITY Common Stock -- Voting -- Dividends -- Liquidation Rights -- Other Matters -- Preferred Stock -- Common Stock Issuance On August 14, 2015, the Company issued an additional 27,253 shares of restricted stock valued at $20,167 for services provided and to be provided by the board of directors. The Company will recognize the non-cash compensation of the award over the requisite service period, of which 27,253 shares vested on January 1, 2016. On April 13, 2015, the Company issued an additional 100,000 shares of restricted stock valued at $75,000 for services provided and to be provided by the board of directors. The Company will recognize the non-cash compensation of the award over the requisite service period, of which 33,333 shares vested on January 1, 2016, 33,333 shares will vest on January 1, 2017 and 33,334 shares will vest on January 1, 2018. During the third quarter 2014, the Company issued 47,500 shares of common stock in connection with the exercise of 47,500 stock options with an exercise price of $1.50 each. On the July 29, 2014, the Company, through its subsidiary, LiqTech Int. DK, completed the acquisition of all of the issued and outstanding capital stock (the “Shares”) of LiqTech Systems and as part of the consideration for the LiqTech Systems Shares, the Company issued 4,044,782 of Parent’s common shares. On July 28, 2014, Parent completed a registered public offering of its common stock. As part of the closing, Parent issued 8,000,000 shares of common stock at a per share price of $1.50 and generated net proceeds of $10,736,278 net of offering costs of $1,263,722. During 2014, the Company issued an additional 100,000 shares of restricted stock valued at $158,000 for services provided by the board of directors. The Company will recognize the non-cash compensation of the award over the requisite service period, of which 33,333 shares vested on December 31, 2014, 33,333 shares will vest on December 31, 2015 and 33,334 shares will vest on December 31, 2016. During 2013, the Company issued an additional 300,000 shares of restricted stock valued at $960,000 for services provided and to be provided by the Board of Directors. The Company will recognize the non-cash compensation of the award over the requisite service period, of which 133,333 shares vested on January 1, 2014, 133,333 shares vested on January 1, 2015 and 33,334 shares vested on January 1, 2016. As of December 31, 2015 and 2014, the Company has recorded non-cash compensation expense of $204,500 and $479,333 relating to the awards, respectively. Common Stock Purchase Warrants A summary of the status of the warrants outstanding at December 31, 2015 is presented below: Warrants Outstanding Warrants Exercisable Exercise Prices Number Outstanding Weighted Average Remaining Contractual Life (years) Weighted Average Exercise Price Number Exercisable Weighted Average Exercise Price $ 1.00 200,000 2.01 $ 1.00 66,667 $ 1.00 $ 1.50 3,874,000 1.01 $ 1.50 3,874,000 $ 1.50 $ 1.65 400,000 3.58 $ 1.65 400,000 $ 1.65 $ 2.70 2,626,000 1.01 $ 2.70 2,626,000 $ 2.70 $ 4.06 125,575 1.19 $ 4.06 125,575 $ 4.06 Total 7,225,575 1.18 $ 1.98 7,092,242 $ 1.99 At December 31, 2015, the Company had 133,333 non-vested warrants. We have recorded non-cash compensation expense of $10,286 for the year ended December 31, 2015 related to the warrants issued. The exercise price of the warrants and the number of shares underlying the warrants are subject to adjustment for stock dividends, subdivisions of the outstanding shares of common stock and combinations of the outstanding shares of common stock. For so long as the warrants remain outstanding, we are required to keep reserved from our authorized and unissued shares of common stock a sufficient number of shares to provide for the issuance of the shares underlying the warrants. On June 4, 2015, the Company issued to Wolfe Axelrod Weinberger Associates, LLC a warrant to purchase 200,000 shares at an exercise price of $1.00 per share. The warrants are exercisable 1/3 upon issuance, 1/3 on June 4, 2016 and 1/3 on June 2017 and will remain exercisable until December 31, 2017. On July 28, 2014, the Company issued to the Underwriter in our public offering, for a price of $50, a warrant to purchase 400,000 shares at an exercise price of $1.65 per share. The warrants are immediately exercisable and will remain exercisable for five years from date of issuance. Stock Options In August 2011, Parent’s Board of Directors adopted a Stock Option Plan (the “Plan”). Under the terms and conditions of the Plan, the Board of Directors is empowered to grant stock options to employees, officers, and directors of the Company. At December 31, 2015, 1,071,000 options were granted and outstanding under the Plan. The Company recognizes compensation costs for stock option awards to employees based on their grant-date fair value. The value of each stock option is estimated on the date of grant using the Black-Scholes option-pricing model. The weighted-average assumptions used to estimate the fair values of the stock options granted using the Black-Scholes option-pricing model are as follows: LiqTech International, Inc. Expected term (in years) 5 - 10 Volatility 74.65% to 76.87% Risk free interest rate 1.38% - 2.24% Dividend yield 0% The Company recognized stock based compensation expense related to the options of $154,745 and $34,295 for the years ended December 31, 2015 and 2014, respectively. At December 31, 2015 the Company had approximately $452,807 of unrecognized compensation cost related to non-vested options expected to be recognized through December 31, 2025 . A summary of the status of the options outstanding under the Company’s stock option plans at December 31, 2015 is presented below: Options Outstanding Options Exercisable Exercise Prices Number Outstanding Weighted Average Remaining Contractual Life (years) Weighted Average Exercise Price Number Exercisable Weighted Average Exercise Price $ 0.74 425,000 4.62 $ 0.74 0 $ 0.74 $ 0.75 100,000 4.29 $ 0.75 0 $ 0.75 $ 1.01 130,000 9.97 $ 1.01 130,000 $ 1.01 $ 1.57 100,000 1.79 $ 1.57 100,000 $ 1.57 $ 1.90 316,000 1.08 $ 1.90 210,667 $ 1.90 Total 1,071,000 3.93 $ 1.19 440,667 $ 1.56 A summary of the status of the options at December 31, 2015, and changes during the period is presented below: December 31, 2015 Shares Weighted Average Exercise Price Average Remaining Life Weighted Average Intrinsic Value Outstanding at beginning of period 1,960,130 $ 2.55 0.70 $ - Granted 655,000 0.80 - 140,750 Exercised - - - - Forfeited (87,500 ) 1.90 - - Expired (1,456,630 ) 2.79 - - Outstanding at end of period 1,071,000 $ 1.19 3.93 $ 140,750 Vested and expected to vest 1,071,000 $ 1.27 3.20 $ 67,250 Exercisable end of period 440,667 $ 1.56 3.86 $ - At December 31, 2015, the Company had 630,333 non-vested options with a weighted average exercise price of $0.94 and with a weighted average grant date fair value of $0.49, resulting in unrecognized compensation expense of $259,254, which is expected to be expensed over a weighted-average period of 3.97 years. The total intrinsic value of options at December 31, 2015 was $140,750. Intrinsic value is measured using the fair market value at the date of exercise (for shares exercised) or at December 31, 2015 (for outstanding options), less the applicable exercise price.

Note 14 - Significant Customers

Note 14 - Significant Customers / Concentration	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	NOTE 14 - SIGNIFICANT CUSTOMERS / CONCENTRATION For the year ended December 31, 2015, our four largest customers accounted for approximately 24%, 15%, 11% and 6%, respectively, of our net sales (approximately 56% in total). For the year ended December 31, 2014, our four largest customers accounted for approximately 10%, 5%, 4% and 3%, respectively, of our net sales (approximately 22% in total). The Company sells products throughout the world; sales by geographical region are as follows for the year ended December 31, 2015 and 2014: For the Year Ended December 31 2015 2014 United States and Canada $ 1,521,718 $ 3,152,919 Australia 382,883 374,289 South America 2,400,000 16,845 Asia 1,139,090 2,004,409 Europe 10,368,896 9,012,730 $ 15,812,587 $ 14,561,192 The Company’s sales by product line are as follows for the year ended December 31, 2015 and 2014: For the Year Ended December 31 2015 2014 Ceramic diesel particulate $ 5,081,304 $ 6,620,625 Liquid filters 10,347,010 7,532,528 Kiln furniture 384,273 408,039 $ 15,812,587 $ 14,561,192

Note 15 - Acquisition

Note 15 - Acquisition	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Business Combination Disclosure [Text Block]	NOTE 15 – ACQUISITION Acquisition The purchase agreement includes “catch up” provisions that provide that the Payment Shares placed in escrow will be released from escrow if Provital (1) for the years ending December 31, 2014 and December 31, 2015, achieves accumulated gross revenues (i) exceeding DKK 185,000,000 and EBITDA of DKK 18,500,000, or (ii) EBITDA of not less than DKK 26,000,000 and gross revenues of not less than DKK 130,000,000 or (2) for the year ending December 31, 2016, achieves gross revenues exceeding DKK 105,000,000 and EBITDA of not less than DKK 21,000,000. Current fair value of the consideration transferred to acquire LiqTech Systems A/S: Cash $ 2,300,000 4,044,782 common shares at $1.5 a share 6,067,173 Current consideration transferred for the acquisition $ 8,367,173 Total consideration transferred was allocated to tangible and identifiable intangible assets acquired and liabilities assumed based on their fair values at the acquisition date as set forth below. The Company believes that the acquisition of LiqTech Systems A/S facilitates the Company’s entry into the waters filtration systems industry market, diversifies its product revenue and enhances its strength in providing whole system offerings. These factors contributed to consideration transferred in excess of the fair value of LiqTech Systems net tangible and intangible assets acquired, resulting in the Company recording goodwill in connection with the transaction. Management estimated the fair values of tangible and intangible asset and liabilities in accordance with the applicable accounting guidance for business combinations. The Company’s allocation of consideration transferred for LiqTech Systems AS is as follows: Estimated Fair Value Cash $ 425,316 Accounts receivable, net 856,566 Other receivables 1,279 Cost in excess of billings 592,747 Inventory 1,572,529 Prepaid expenses 3,794 Current deferred tax asset 154,682 Property and Equipment, net of accumulated depreciation 56,005 Deposits 12,084 Deferred tax asset long term 277,126 Goodwill 9,383,593 Total assets acquired $ 13,335,721 Lines of credit payable (1,794,301 ) Accounts payable (1,637,815 ) Accrued expense (1,082,482 ) Billings in excess of cost (322,391 ) Notes payable (131,559 ) Total net assets acquired $ 8,367,173 Goodwill The $9,383,593 of goodwill represents the excess of consideration transferred over the fair value of assets acquired and liabilities assumed and is attributable to the benefits expected from combining the Company’s operations with LiqTech Systems AS.

Note 16 - Subsequent Events

Note 16 - Subsequent Events	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Subsequent Events [Text Block]	NOTE 16 - SUBSEQUENT EVENT The Company’s management reviewed material events through March 18, 2016.

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]	The financial statements are set forth under Item 8 of this Annual Report. The following financial statement schedule for the years ended December 31, 2015 and December 31, 2014 is included in this Annual Report on Form 10-K: a. Valuation and Qualifying Accounts for the years ended December 31, 2015 and December 31, 2014. Balance Beginning of Year Charges to Costs and Expenses Deductions (1) Balance End of Year Year Ended December 31, 2015 Allowance for inventory obsolescence $ 449,098 $ 174,143 $ (16,737 ) $ 606,504 Allowance for doubtful accounts 1,654,290 (80,729 ) (485,690 ) 1,087,871 Totals $ 2,103,388 $ 93,414 $ (502,427 ) $ 1,694,375 Balance Beginning of Year Charges to Costs and Expenses Deductions (1) Balance End of Year Year Ended December 31, 2014 Allowance for inventory obsolescence $ 260,897 $ 203,996 $ (15,795 ) $ 449,098 Allowance for doubtful accounts 608,356 216,919 829,015 1,654,290 Totals $ 869,253 $ 420,915 $ 813,220 $ 2,103,388 (1) Includes write-offs, the impact of foreign currency exchange rates and the effect of the acquisition of LiqTech Systems A/S.

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2015
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Business and Basis of Presentation The consolidated financial statements include the accounts of LiqTech International, Inc. (“Parent”) and its subsidiaries. The terms "Company", “us", "we" and "our" as used in this report refer to Parent and its subsidiaries, which are set forth below. The Company engages in the development, design, production, marketing and sale of automated filtering systems, liquid filters, diesel particulate air filters and kiln furniture in United States, Canada, Europe, Asia and South America. Set forth below is a description of Parent and each of its subsidiaries: LiqTech International, Inc., a Nevada corporation organized in July 2004, formerly known as Blue Moose Media, Inc. LiqTech USA, a Delaware corporation and a wholly-owned subsidiary of Parent formed in May 2011. LiqTech International AS, a Danish corporation, incorporated on January 15, 2000 (“LiqTech Int. DK”), a 100% owned subsidiary of LiqTech USA, engages in development, design, application, marketing and sales of membranes on ceramic diesel particulate and liquid filters and catalytic converters in Europe, Asia and South America. LiqTech NA, Inc. (“LiqTech NA”), incorporated in Delaware on July 1, 2005, a 100% owned subsidiary of LiqTech USA. LiqTech NA, Inc. engages in the production, marketing and sale of ceramic diesel particulate and liquid filters and kiln furniture in United States and Canada. LiqTech Asia (“LiqTech Asia”) a 60% owned subsidiary of LiqTech Int. DK, incorporated in South Korea on July 20, 2006, was a dormant subsidiary. The company was closed on March 6, 2015. LiqTech Germany (“LiqTech Germany”) a 100% owned subsidiary of LiqTech Int. DK, incorporated in Germany on December 9, 2011, engages in marketing and sale of liquid filters in Germany. The Company is in the process of closing operations, which is expected to be completed during 2016. LiqTech PTE Ltd, (“LiqTech Sing”) a 95% owned subsidiary of LiqTech Int. DK, incorporated in Singapore on January 19, 2012, engages in marketing and sale of liquid filters in Singapore and other countries in the area. The Company is in the process of closing operations, which is expected to be completed during 2016. LiqTech Systems AS, a Danish Corporation ("LiqTech Systems") (Formerly Provital Solutions A/S) was incorporated on September 1, 2009 and engages in the manufacture of fully automated filtering systems for application within the pool and spa markets, marine applications, and a number of industrial applications within Denmark and international markets. The financial statements include the accounts of LiqTech Systems from the date of acquisition on July 31, 2014.
Consolidation, Policy [Policy Text Block]	Consolidation --
Foreign Currency Transactions and Translations Policy [Policy Text Block]	Functional Currency / Foreign currency translation --
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash, Cash Equivalents and Restricted Cash --
Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block]	Accounts Receivable -- The roll forward of the allowance for doubtful accounts for the year ended December 31, 2015 and December 31, 2014 is as follows: 2015 2014 Allowance for doubtful accounts at the beginning of the period $ 1,654,290 $ 608,356 Bad debt expense 80,729 216,919 Amount of receivables written off (398,083 ) (42,117 ) Acquired subsidiary - 951,354 Effect of currency translation (249,065 ) (80,222 ) Allowance for doubtful accounts at the end of the period $ 1,087,871 $ 1,654,290
Inventory, Policy [Policy Text Block]	Inventory --
Property, Plant and Equipment, Policy [Policy Text Block]	Property and Equipment --
Investment, Policy [Policy Text Block]	Long-Term Investments --
Goodwill and Intangible Assets, Policy [Policy Text Block]	Intangible Assets --
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]	Goodwill
Revenue Recognition, Policy [Policy Text Block]	Revenue Recognition and Sales Incentives -- The Company has received long-term contracts for the installation of various water filtrations systems and grants from government entities for development and use of silicon carbide membranes in various water filtration and treatment applications. Revenues from long-term contracts and grants are recognized on the percentage-of-completion method, measured by the percentage of project costs incurred to date to estimated total project costs for each long-term contract or grant multiplied by the long-term contract or grant income on a project by project basis. This method is used because management considers costs incurred to be the best available measure of progress on contracts in process. Project costs of the long-term contracts and grants include all direct material and labor costs and those indirect costs related to the project. Project costs are capitalized and accreted into cost of sales based on the percentage of the project completed. Should a loss be estimated on an incomplete project it would be recorded in the period in which such a loss is determined. Changes in estimated profitability of a project are recognized in the period in which the revisions are determined. The aggregate of costs incurred and income recognized on incomplete projects are recorded as costs in excess of billings and are shown as a current asset. The aggregate of billings in excess of related costs incurred and income recognized on projects is shown as a current liability. F- 10 In Denmark, Value Added Tax (“VAT”) of 25% of the invoice amount is collected in respect of the sales of goods on behalf of tax authorities. The VAT collected is not revenue of the Company; instead, the amount is recorded as a liability on the balance sheet until such VAT is paid to the authorities.
Advertising Costs, Policy [Policy Text Block]	Advertising Cost --
Research, Development, and Computer Software, Policy [Policy Text Block]	Research and Development Cost --
Income Tax, Policy [Policy Text Block]	Income Taxes --
Earnings Per Share, Policy [Policy Text Block]	Income (Loss) Per Share --
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]	Stock Options and Awards --
Fair Value Measurement, Policy [Policy Text Block]	Fair Value of Financial Instruments -- ? Level 1. Observable inputs such as quoted prices in active markets for identical assets or liabilities; ? Level 2. Inputs, other than the quoted prices in active markets, that are observable either directly or indirectly; and ? Level 3. Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions. Unless otherwise disclosed, the fair value of the Company’s financial instruments including cash, accounts receivable, prepaid expenses, investments, accounts payable, accrued expenses, capital lease obligations and notes payable approximates their recorded values due to their short-term maturities.
Use of Estimates, Policy [Policy Text Block]	Accounting Estimates --
New Accounting Pronouncements, Policy [Policy Text Block]	Recent Accounting Pronouncements -- In 2015, the FASB issued an amended standard requiring that we classify all deferred tax assets and liabilities as non-current on the balance sheet instead of separating deferred taxes into current and non-current. The amended standard is effective for us beginning in the first quarter of 2017; early adoption is permitted and we are evaluating whether we will early adopt. The amended standard may be adopted on either a prospective or retrospective basis. We do not expect that the adoption of this standard will have a significant impact on our financial position or results of operations. In February 2016, the FASB issued changes to the accounting for leases that primarily affect presentation and disclosure requirements. The new standard will require the recognition of a right to use asset and underlying lease liability for operating leases with an initial life in excess of one year. This standard is effective for us beginning in the first quarter of 2019. We have not yet determined the impact of the new standard on our consolidated financial statements. Other recent accounting pronouncements issued by the FASB did not or are not believed by management to have a material impact on the Company’s present or future financial statements.

Note 1 - Summary of Significa28

Note 1 - Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2015
Notes Tables
Allowance for Credit Losses on Financing Receivables [Table Text Block]	2015 2014 Allowance for doubtful accounts at the beginning of the period $ 1,654,290 $ 608,356 Bad debt expense 80,729 216,919 Amount of receivables written off (398,083 ) (42,117 ) Acquired subsidiary - 951,354 Effect of currency translation (249,065 ) (80,222 ) Allowance for doubtful accounts at the end of the period $ 1,087,871 $ 1,654,290

Note 3 - Inventory (Tables)

Note 3 - Inventory (Tables)	12 Months Ended
	Dec. 31, 2015
Notes Tables
Schedule of Inventory, Current [Table Text Block]	2015 2014 Furnace parts and supplies $ 466,538 $ 507,849 Raw materials 1,498,406 1,501,050 Work in process 1,770,070 1,326,840 Finished goods and filtration systems 1,788,161 2,028,225 Reserve for obsolescence (606,504 ) (449,098 ) Net Inventory $ 4,916,671 $ 4,914,866

Note 4 - Property and Equipme30

Note 4 - Property and Equipment (Tables)	12 Months Ended
	Dec. 31, 2015
Notes Tables
Property, Plant and Equipment [Table Text Block]	Useful Life 2015 2014 Production equipment 3 - 10 $ 10,536,377 $ 10,792,494 Lab equipment 3 - 10 143,783 160,427 Computer equipment 3 - 5 269,526 288,351 Vehicles 3 - 5 40,365 93,477 Furniture and fixture 5 141,502 180,138 Leasehold improvements 10 972,023 1,052,923 12,103,576 12,567,810 Less Accumulated Depreciation (8,564,882) (8,043,424 ) Net Property and Equipment $ 3,538,694 $ 4,524,386

Note 5 - Investments at Costs (

Note 5 - Investments at Costs (Tables)	12 Months Ended
	Dec. 31, 2015
Notes Tables
Fair Value, by Balance Sheet Grouping [Table Text Block]	As of December 31, 2015 Level 1 Level 2 Level 3 Investments - - 21,838 Total - - 21,838 As of December 31, 2014 Level 1 Level 2 Level 3 Investments - - 6,085 Total - - 6,085

Note 6 - Definite-life Intang32

Note 6 - Definite-life Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2015
Notes Tables
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Year ending December 31, Amortization Expenses 2016 $ 4,589 2017 2,787 2018 2,344 2019 666 Thereafter - $ 10,386

Note 7 - Goodwill (Tables)

Note 7 - Goodwill (Tables)	12 Months Ended
	Dec. 31, 2015
Notes Tables
Schedule of Goodwill [Table Text Block]	December 31, 2015 Goodwill at beginning of period $ 8,460,512 Effect of currency translation (877,763 ) Goodwill at end of period $ 7,582,749
Schedule of Intangible Assets and Goodwill [Table Text Block]	Goodwill consists of: December 31, 2015 LiqTech Systems A/S (Formerly Provital Solutions A/S) $ 7,582,749

Note 9 - Leases (Tables)

Note 9 - Leases (Tables)	12 Months Ended
	Dec. 31, 2015
Notes Tables
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	Year ending December 31, Lease Payments 2016 715,965 2017 516,949 2018 294,853 Thereafter - Total Minimum Lease Payments $ 1,527,767
Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block]	Year ending December 31, Lease Payments 2016 $ 187,863 2017 125,605 2018 24,492 Thereafter - Total minimum lease payments 337,960 Less amount representing interest (22,231 ) Present value of minimum lease payments 315,729 Less Current Portion (150,157 ) $ 165,572

Note 11 - Income Taxes (Tables)

Note 11 - Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2015
Notes Tables
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	2015 2014 Vacation accrual $ 3,933 $ 5,077 Allowance for doubtful Accounts 14,089 13,955 Reserve for obsolete inventory 154,100 90,605 Net current tax assets $ 172,122 $ 109,637 Business tax credit carryover 30,935 25,709 Deferred compensation - 171,615 Net operating loss carryover 4,333,820 4,001,198 Excess of book over tax depreciation (452,088 ) (583,735 ) Valuation Allowance (228,170 ) (118,328 ) Long term deferred tax asset $ 3,684,497 $ 3,496,459
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	2015 2014 Computed tax at expected statutory rate $ (991,139 ) $ (2,313,668 ) State and local income taxes, net of federal benefits (20,476 ) (5,307 ) Non-deductible expenses 5,291 12,711 Non-US income taxed at different rates 47,837 480,085 Non-deductible deferred compensation 140,175 - Effect of changes in tax rates (31,748 ) - Non-deductible loss of subsidiaries 50,579 - Valuation Allowance 109,842 118,328 Other items (8,147 ) 5,300 Income tax expense (benefit) $ (697,786 ) $ (1,702,551 )
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	2015 2014 Current income tax expense: Danish $ (266,107 ) $ (336,868 ) Korean - 600 Federal - - State 570 570 Current tax (benefit) $ (265,537 ) $ (335,698 ) Book in excess of tax depreciation $ (136,572 ) $ (151,131 ) Deferred rent - - Business tax credit carryover (5,226 ) (5,525 ) Net operating loss carryover (517,153 ) (1,347,132 ) Allowance for doubtful accounts 156,036 118,328 Deferred compensation - - Accrued Vacation 1,143 (916 ) Deferred Compensation 171,615 26,815 Reserve for obsolete inventory (102,092 ) (7,292 ) Deferred tax expense (benefit) $ (432,249 ) $ (1,366,853 ) Total tax expense (benefit) $ (697,786 ) $ (1,702,551 )

Note 12 - Earnings Per Share (T

Note 12 - Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2015
Notes Tables
Schedule of Weighted Average Number of Shares [Table Text Block]	For the Year Ended December 31 2015 2014 Net Income (Loss) attributable to LiqTech International Inc. $ (2,209,857 ) $ (3,066,068 ) Weighted average number of common shares used in basic earnings per share 39,486,941 32,398,941 Effect of dilutive securities, stock options and warrants - - Weighted average number of common shares and potential dilutive common shares outstanding used in dilutive earnings per share 39,486,941 32,398,941

Note 13 - Stockholders' Equity

Note 13 - Stockholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2015
Notes Tables
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]	Warrants Outstanding Warrants Exercisable Exercise Prices Number Outstanding Weighted Average Remaining Contractual Life (years) Weighted Average Exercise Price Number Exercisable Weighted Average Exercise Price $ 1.00 200,000 2.01 $ 1.00 66,667 $ 1.00 $ 1.50 3,874,000 1.01 $ 1.50 3,874,000 $ 1.50 $ 1.65 400,000 3.58 $ 1.65 400,000 $ 1.65 $ 2.70 2,626,000 1.01 $ 2.70 2,626,000 $ 2.70 $ 4.06 125,575 1.19 $ 4.06 125,575 $ 4.06 Total 7,225,575 1.18 $ 1.98 7,092,242 $ 1.99
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	LiqTech International, Inc. Expected term (in years) 5 - 10 Volatility 74.65% to 76.87% Risk free interest rate 1.38% - 2.24% Dividend yield 0%
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]	Options Outstanding Options Exercisable Exercise Prices Number Outstanding Weighted Average Remaining Contractual Life (years) Weighted Average Exercise Price Number Exercisable Weighted Average Exercise Price $ 0.74 425,000 4.62 $ 0.74 0 $ 0.74 $ 0.75 100,000 4.29 $ 0.75 0 $ 0.75 $ 1.01 130,000 9.97 $ 1.01 130,000 $ 1.01 $ 1.57 100,000 1.79 $ 1.57 100,000 $ 1.57 $ 1.90 316,000 1.08 $ 1.90 210,667 $ 1.90 Total 1,071,000 3.93 $ 1.19 440,667 $ 1.56
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block]	December 31, 2015 Shares Weighted Average Exercise Price Average Remaining Life Weighted Average Intrinsic Value Outstanding at beginning of period 1,960,130 $ 2.55 0.70 $ - Granted 655,000 0.80 - 140,750 Exercised - - - - Forfeited (87,500 ) 1.90 - - Expired (1,456,630 ) 2.79 - - Outstanding at end of period 1,071,000 $ 1.19 3.93 $ 140,750 Vested and expected to vest 1,071,000 $ 1.27 3.20 $ 67,250 Exercisable end of period 440,667 $ 1.56 3.86 $ -

Note 14 - Significant Custome38

Note 14 - Significant Customers / Concentration (Tables)	12 Months Ended
	Dec. 31, 2015
Notes Tables
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]	For the Year Ended December 31 2015 2014 United States and Canada $ 1,521,718 $ 3,152,919 Australia 382,883 374,289 South America 2,400,000 16,845 Asia 1,139,090 2,004,409 Europe 10,368,896 9,012,730 $ 15,812,587 $ 14,561,192
Reconciliation of Revenue from Segments to Consolidated [Table Text Block]	For the Year Ended December 31 2015 2014 Ceramic diesel particulate $ 5,081,304 $ 6,620,625 Liquid filters 10,347,010 7,532,528 Kiln furniture 384,273 408,039 $ 15,812,587 $ 14,561,192

Note 15 - Acquisition (Tables)

Note 15 - Acquisition (Tables)	12 Months Ended
	Dec. 31, 2015
Notes Tables
Schedule of Business Acquisitions by Acquisition, Contingent Consideration [Table Text Block]	Cash $ 2,300,000 4,044,782 common shares at $1.5 a share 6,067,173 Current consideration transferred for the acquisition $ 8,367,173
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	Estimated Fair Value Cash $ 425,316 Accounts receivable, net 856,566 Other receivables 1,279 Cost in excess of billings 592,747 Inventory 1,572,529 Prepaid expenses 3,794 Current deferred tax asset 154,682 Property and Equipment, net of accumulated depreciation 56,005 Deposits 12,084 Deferred tax asset long term 277,126 Goodwill 9,383,593 Total assets acquired $ 13,335,721 Lines of credit payable (1,794,301 ) Accounts payable (1,637,815 ) Accrued expense (1,082,482 ) Billings in excess of cost (322,391 ) Notes payable (131,559 ) Total net assets acquired $ 8,367,173

Schedule II - Valuation and Q40

Schedule II - Valuation and Qualifying Accounts (Tables)	12 Months Ended
	Dec. 31, 2015
Notes Tables
Summary of Valuation Allowance [Table Text Block]	Balance Beginning of Year Charges to Costs and Expenses Deductions (1) Balance End of Year Year Ended December 31, 2015 Allowance for inventory obsolescence $ 449,098 $ 174,143 $ (16,737 ) $ 606,504 Allowance for doubtful accounts 1,654,290 (80,729 ) (485,690 ) 1,087,871 Totals $ 2,103,388 $ 93,414 $ (502,427 ) $ 1,694,375 Balance Beginning of Year Charges to Costs and Expenses Deductions (1) Balance End of Year Year Ended December 31, 2014 Allowance for inventory obsolescence $ 260,897 $ 203,996 $ (15,795 ) $ 449,098 Allowance for doubtful accounts 608,356 216,919 829,015 1,654,290 Totals $ 869,253 $ 420,915 $ 813,220 $ 2,103,388

Note 1 - Summary of Significa41

Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
LiqTech USA [Member] | LiqTech International DK [Member]
Percentage of Subsidiary Owned	100.00%
LiqTech USA [Member] | LiqTech NA [Member]
Percentage of Subsidiary Owned	100.00%
LiqTech International DK [Member] | LiqTech Asia [Member]
Percentage of Subsidiary Owned	60.00%
LiqTech International DK [Member] | LiqTech Germany [Member]
Percentage of Subsidiary Owned	100.00%
LiqTech International DK [Member] | LiqTech PTE [Member]
Percentage of Subsidiary Owned	95.00%
Minimum [Member]
Property, Plant and Equipment, Useful Life	3 years
Finite-Lived Intangible Asset, Useful Life	2 years
Maximum [Member]
Property, Plant and Equipment, Useful Life	10 years
Finite-Lived Intangible Asset, Useful Life	10 years
DENMARK
Value Added Tax Of Invoice, Percentage	25.00%
Employee Stock Option [Member]
Allocated Share-based Compensation Expense	$ 369,531	$ 573,029
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	0	157,080
Cash, Uninsured Amount	0	0
Restricted Cash and Cash Equivalents	292,826	218,879
Advertising Expense	34,442	50,327
Research and Development Expense	707,844	336,066
Allocated Share-based Compensation Expense	$ 369,531	$ 573,029

Note 1 - Allowance for Doubtful

Note 1 - Allowance for Doubtful Accounts, Roll Forward (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Allowance for doubtful accounts at the beginning of the period	$ 1,654,290	$ 608,356
Bad debt expense	80,729	216,919
Amount of receivables written off	$ (398,083)	(42,117)
Acquired subsidiary		951,354
Effect of currency translation	$ (249,065)	(80,222)
Allowance for doubtful accounts at the end of the period	$ 1,087,871	$ 1,654,290

Note 2 - Related Party Transa43

Note 2 - Related Party Transactions (Details Textual) - USD ($)	Jan. 14, 2014	Jan. 03, 2014	Oct. 02, 2013	Dec. 31, 2014	Oct. 31, 2014	Nov. 30, 2013	Dec. 31, 2014
Consulting [Member] | Shareholder [Member]
Related Party Transaction, Amounts of Transaction			$ 75,000
Consulting [Member] | Majority Shareholder [Member]
Related Party Transaction, Amounts of Transaction		$ 75,000
Consulting [Member] | Former Board Member and Brother of Shareholder [Member]
Related Party Transaction, Amounts of Transaction						$ 60,000
Term of Consulting Agreement						2 years
Board of Directors Chairman [Member]
Payments to Employees	$ 175,000
Officer [Member] | Accounts Payable and Accrued Liabilities [Member] | Advance from Related Party [Member]
Related Party Transaction, Amounts of Transaction				$ 35,000	$ 25,000		$ 60,000

Note 3 - Summary of Inventory (

Note 3 - Summary of Inventory (Details) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Furnace parts and supplies	$ 466,538	$ 507,849
Raw materials	1,498,406	1,501,050
Work in process	1,770,070	1,326,840
Finished goods and filtration systems	1,788,161	2,028,225
Reserve for obsolescence	(606,504)	(449,098)
Net Inventory	$ 4,916,671	$ 4,914,866

Note 4 - Property and Equipme45

Note 4 - Property and Equipment (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Depreciation	$ 1,437,787	$ 1,622,552

Note 4 - Summary of Property an

Note 4 - Summary of Property and Equipment (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Minimum [Member] | Production Equipment [Member]
Property, Plant and Equipment, Useful Life	3 years
Minimum [Member] | Lab Equipment [Member]
Property, Plant and Equipment, Useful Life	3 years
Minimum [Member] | Computer Equipment [Member]
Property, Plant and Equipment, Useful Life	3 years
Minimum [Member] | Vehicles [Member]
Property, Plant and Equipment, Useful Life	3 years
Minimum [Member]
Property, Plant and Equipment, Useful Life	3 years
Maximum [Member] | Production Equipment [Member]
Property, Plant and Equipment, Useful Life	10 years
Maximum [Member] | Lab Equipment [Member]
Property, Plant and Equipment, Useful Life	10 years
Maximum [Member] | Computer Equipment [Member]
Property, Plant and Equipment, Useful Life	5 years
Maximum [Member] | Vehicles [Member]
Property, Plant and Equipment, Useful Life	5 years
Maximum [Member]
Property, Plant and Equipment, Useful Life	10 years
Production Equipment [Member]
Property and equipment	$ 10,536,377	$ 10,792,494
Lab Equipment [Member]
Property and equipment	143,783	160,427
Computer Equipment [Member]
Property and equipment	269,526	288,351
Vehicles [Member]
Property and equipment	$ 40,365	93,477
Furniture and Fixtures [Member]
Property, Plant and Equipment, Useful Life	5 years
Property and equipment	$ 141,502	180,138
Leasehold Improvements [Member]
Property, Plant and Equipment, Useful Life	10 years
Property and equipment	$ 972,023	1,052,923
Property and equipment	12,103,576	12,567,810
Less Accumulated Depreciation	(8,564,882)	(8,043,424)
Net Property and Equipment	$ 3,538,694	$ 4,524,386

Note 5 - Investments at Costs47

Note 5 - Investments at Costs (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
LEA Technology [Member]
Other Long-term Investments	$ 5,460	$ 6,085
LiqTech Italy [Member]
Other Long-term Investments	16,378
Bio Filtration Technology [Member]
Other Long-term Investments		$ 815
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners		15.00%
Gain (Loss) on Investments		$ (815)
Other Long-term Investments	21,838	6,085
Gain (Loss) on Investments	$ 7,253	$ (815)

Note 5 - Summary of Financial A

Note 5 - Summary of Financial Assets and Liabilities (Details) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Fair Value, Inputs, Level 1 [Member]
Investments	$ 0	$ 0
Total	0	0
Fair Value, Inputs, Level 2 [Member]
Investments	0	0
Total	0	0
Fair Value, Inputs, Level 3 [Member]
Investments	21,838	6,085
Total	$ 21,838	$ 6,085

Note 6 - Definite-life Intang49

Note 6 - Definite-life Intangible Assets (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Patents [Member] | Minimum [Member]
Finite-Lived Intangible Asset, Useful Life	2 years
Patents [Member] | Maximum [Member]
Finite-Lived Intangible Asset, Useful Life	10 years
Patents [Member]
Intangible Assets, Net (Excluding Goodwill)	$ 10,386	$ 16,708
Amortization of Intangible Assets	$ 6,322	7,979
Minimum [Member]
Finite-Lived Intangible Asset, Useful Life	2 years
Maximum [Member]
Finite-Lived Intangible Asset, Useful Life	10 years
Intangible Assets, Net (Excluding Goodwill)	$ 10,386	$ 16,708

Note 6 - Expected Future Amorti

Note 6 - Expected Future Amortization Expense (Details)	Dec. 31, 2015USD ($)
2,016	$ 4,589
2,017	2,787
2,018	2,344
2,019	666
	$ 10,386

Note 7 - Goodwill (Details Text

Note 7 - Goodwill (Details Textual) - USD ($)	1 Months Ended	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Acquired Receivables [Member]
Goodwill, Period Increase (Decrease)	$ 775,788
Long Term Contracts [Member]
Goodwill, Period Increase (Decrease)	196,255
Taxes, Other	$ 135,990
Goodwill, Impairment Loss		$ 0	$ 0

Note 7 - Summary of Goodwill (D

Note 7 - Summary of Goodwill (Details)	12 Months Ended
	Dec. 31, 2015USD ($)
Goodwill at beginning of period	$ 8,460,512
Effect of currency translation	(877,763)
Goodwill at end of period	$ 7,582,749

Note 7 - Goodwill (Details)

Note 7 - Goodwill (Details)	Dec. 31, 2015USD ($)
LiqTech Systems A/S [Member]
Goodwill	$ 7,582,749
Goodwill	$ 7,582,749

Note 8 - Lines of Credit (Detai

Note 8 - Lines of Credit (Details Textual) - Dec. 31, 2015	USD ($)	DKK
Line of Credit Facility, Maximum Borrowing Capacity	$ 69,000	DKK 473,100
Guarantor Obligations, Current Carrying Value	$ 69,000	DKK 473,100

Note 9 - Leases (Details Textua

Note 9 - Leases (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Capital Lease 1 [Member] | Capital Lease Obligations [Member]
Debt Instrument, Periodic Payment	$ 9,623
Capital Lease 2 [Member] | Capital Lease Obligations [Member]
Debt Instrument, Periodic Payment	3,729
Capital Lease 3 [Member] | Capital Lease Obligations [Member]
Debt Instrument, Periodic Payment	610
Capital Lease 4 [Member] | Capital Lease Obligations [Member]
Debt Instrument, Periodic Payment	549
Assets Held under Capital Leases [Member]
Depreciation	141,050	$ 212,443
Operating Leases, Rent Expense	697,736	747,558
Capital Leased Assets, Gross	1,302,005	1,469,058
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	1,033,062	997,645
Depreciation	1,437,787	1,622,552
Interest Expense, Lessee, Assets under Capital Lease	$ 26,840	$ 43,595

Note 9 - Future Minimum Lease P

Note 9 - Future Minimum Lease Payments for Non-cancelable Operating Leases (Details)	Dec. 31, 2015USD ($)
2,016	$ 715,965
2,017	516,949
2,018	294,853
Thereafter	0
Total Minimum Lease Payments	$ 1,527,767

Note 9 - Future Minimum Capital

Note 9 - Future Minimum Capital Lease Payments (Details)	Dec. 31, 2015USD ($)
2,016	$ 187,863
2,017	125,605
2,018	24,492
Thereafter	0
Total minimum lease payments	337,960
Less amount representing interest	(22,231)
Present value of minimum lease payments	315,729
Less Current Portion	(150,157)
	$ 165,572

Note 10 - Agreements, Commitm58

Note 10 - Agreements, Commitments and Contingencies (Details Textual)	Sep. 09, 2014EUR (€)	Sep. 09, 2014USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)	Dec. 31, 2015DKK
Chief Executive Officer [Member] | LiqTech Italy [Member]
Equity Method Investment, Ownership Percentage	60.00%	60.00%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	40.00%	40.00%
Loss Contingency, Damages Sought, Value	€ 750,000	$ 690,000
Defined Contribution Plan, Cost Recognized			$ 14,610	$ 16,743
Line of Credit Facility, Maximum Borrowing Capacity			69,000		DKK 473,100
Guarantor Obligations, Current Carrying Value			69,000		DKK 473,100
Restricted Cash and Cash Equivalents			$ 292,826	$ 218,879

Note 11 - Income Taxes (Details

Note 11 - Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
DENMARK | Danish Ministry of Taxation [Member]
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	$ 5,650,000
GERMANY | Federal Ministry of Finance, Germany [Member]
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	112,000
SINGAPORE | Inland Revenue, Singapore (IRAS) [Member]
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	116,000
Deferred Tax Assets, Operating Loss Carryforwards, Domestic	8,420,000
Deferred Tax Assets, Valuation Allowance	228,170	$ 118,328
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 109,842	$ 118,328

Note 11 - Deferred Tax Asset (L

Note 11 - Deferred Tax Asset (Liabilities) (Details) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Vacation accrual	$ 3,933	$ 5,077
Allowance for doubtful Accounts	14,089	13,955
Reserve for obsolete inventory	154,100	90,605
Net current tax assets	172,122	109,637
Business tax credit carryover	$ 30,935	25,709
Deferred compensation		171,615
Net operating loss carryover	$ 4,333,820	4,001,198
Excess of book over tax depreciation	(452,088)	(583,735)
Valuation Allowance	(228,170)	(118,328)
Long term deferred tax asset	$ 3,684,497	$ 3,496,459

Note 11 - Reconciliation of Inc

Note 11 - Reconciliation of Income Tax Expense (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Computed tax at expected statutory rate	$ (991,139)	$ (2,313,668)
State and local income taxes, net of federal benefits	(20,476)	(5,307)
Non-deductible expenses	5,291	12,711
Non-US income taxed at different rates	47,837	$ 480,085
Non-deductible deferred compensation	140,175
Effect of changes in tax rates	(31,748)
Non-deductible loss of subsidiaries	50,579
Valuation Allowance	109,842	$ 118,328
Other items	(8,147)	5,300
Total tax expense (benefit)	$ (697,786)	$ (1,702,551)

Note 11 - Components of Income

Note 11 - Components of Income Tax Expense (Benefit) from Continuing Operations (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Danish Ministry of Taxation [Member]
Current income tax expense:
Foreign current income tax expense (benefit)	$ (266,107)	$ (336,868)
National Tax Service [Member]
Current income tax expense:
Foreign current income tax expense (benefit)	0	600
Federal	0	0
State	570	570
Current tax (benefit)	(265,537)	(335,698)
Book in excess of tax depreciation	$ (136,572)	$ (151,131)
Deferred rent
Business tax credit carryover	$ (5,226)	$ (5,525)
Net operating loss carryover	(517,153)	(1,347,132)
Allowance for doubtful accounts	156,036	118,328
Accrued Vacation	1,143	(916)
Deferred Compensation	171,615	26,815
Reserve for obsolete inventory	(102,092)	(7,292)
Deferred tax expense (benefit)	(432,249)	(1,366,853)
Total tax expense (benefit)	$ (697,786)	$ (1,702,551)

Note 12 - Earnings Per Share (D

Note 12 - Earnings Per Share (Details Textual) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Employee Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	1,071,000	1,960,130
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	7,225,575	7,025,575
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 0.74	$ 1.50
Exercised of warrants and stock options, price per share (in dollars per share)	1	1.50
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	1.90	3.60
Exercised of warrants and stock options, price per share (in dollars per share)	4.06	4.06
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 1.19	$ 2.55

Note 12 - Amounts Used in Compu

Note 12 - Amounts Used in Computing Earnings Per Share (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Net Income (Loss) attributable to LiqTech International Inc.	$ (2,209,857)	$ (3,066,068)
Weighted average number of common shares used in basic earnings per share (in shares)	39,486,941	32,398,941
Effect of dilutive securities, stock options and warrants (in shares)	0	0
Weighted average number of common shares and potential dilutive common shares outstanding used in dilutive earnings per share (in shares)	39,486,941	32,398,941

Note 13 - Stockholders' Equit65

Note 13 - Stockholders' Equity (Details Textual) - USD ($)	Apr. 14, 2015	Apr. 13, 2015	Jul. 29, 2014	Jul. 28, 2014	Sep. 30, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Jun. 04, 2015
Two Thousand Eleven Stock Options Plan [Member] | Employee Stock Option [Member]
Allocated Share-based Compensation Expense						$ 154,745	$ 34,295
Two Thousand Eleven Stock Options Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross						1,071,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number						1,071,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options						$ 452,807
Director [Member] | Restricted Stock [Member] | Vesting on January 1, 2016 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	27,253
Director [Member] | Restricted Stock [Member] | Vesting On January 1, 2017 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period		33,333
Director [Member] | Restricted Stock [Member] | Vesting On January 1, 2018 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period		33,333
Director [Member] | Restricted Stock [Member] | Vesting on December 31, 2017 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period		33,334
Director [Member] | Restricted Stock [Member] | Vesting on December 31, 2014 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period							33,333	133,333
Director [Member] | Restricted Stock [Member] | Vesting on December 31, 2015 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period							33,333	33,334
Director [Member] | Restricted Stock [Member] | Vesting on December 31, 2016 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period							33,334
Director [Member] | Restricted Stock [Member] | Vesting on December 31, 2013 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period								133,333
Director [Member] | Restricted Stock [Member]
Allocated Share-based Compensation Expense						204,500	$ 479,333
Director [Member]
Stock Issued During Period, Shares, Restricted Stock Award, Gross	27,253	100,000					100,000	300,000
Stock Issued During Period, Value, Restricted Stock Award, Gross	$ 20,167	$ 75,000					$ 158,000	$ 960,000
Warrants [Member]
Allocated Share-based Compensation Expense						10,286
Employee Stock Option [Member]
Allocated Share-based Compensation Expense						$ 369,531	$ 573,029
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition						3 years 354 days
Vesting Upon Issuance [Member] | Wolfe Axelrod Weinberger Associates, LLC [Member]
Class of Warrant or Right Vesting Percentage									33.30%
Vesting on June 4, 2016 [Member] | Wolfe Axelrod Weinberger Associates, LLC [Member]
Class of Warrant or Right Vesting Percentage									33.30%
Vesting on June 4, 2017 [Member] | Wolfe Axelrod Weinberger Associates, LLC [Member]
Class of Warrant or Right Vesting Percentage									33.30%
Provital Acquisition [Member]
Stock Issued During Period, Shares, Acquisitions			4,044,782
Wolfe Axelrod Weinberger Associates, LLC [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights									200,000
Exercised of warrants and stock options, price per share (in dollars per share)									$ 1
Craig Hallum Capital Group, LLC [Member]
Exercised of warrants and stock options, price per share (in dollars per share)				$ 1.65
Proceeds from Issuance of Warrants				$ 50
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right				400,000
Warrants Term				5 years
Common Stock, Shares, Issued						39,532,035	39,404,782
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross						655,000
Common Stock, Shares Authorized						100,000,000	100,000,000
Common Stock, Par or Stated Value Per Share						$ 0.001	$ 0.001
Common Stock, Shares, Outstanding						39,532,035	39,404,782
Stock Issued During Period, Shares, New Issues			8,000,000		47,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period					47,500
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price					$ 1.50
Share Price			$ 1.50
Proceeds from Issuance of Common Stock				$ 10,736,278
Common shares issued for cash, net offering cost				$ 1,263,722			$ 1,263,722
Allocated Share-based Compensation Expense						$ 369,531	$ 573,029
Class of Warrant or Right, Unissued						133,333
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number						1,071,000	1,960,130
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options						$ 259,254
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares						630,333
Share Based Compensation Arrangements by Share Based Payment Award Options, Nonvested Weighted Average Exercise Price						$ 0.94
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value						$ 0.49
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value						$ 140,750

Note 13 - Warrants Outstanding

Note 13 - Warrants Outstanding (Details)	12 Months Ended
	Dec. 31, 2015$ / sharesshares
Warrant [Member] | Price Range 1 [Member]
Exercise Price (in dollars per share)	$ 1
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares	200,000
Warrants Weighted Average Remaining Contractual Life	2 years 3 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 1
Warrants Exercisable (in shares) | shares	66,667
Warrants Weighted Average Exercisable Exercise Price (in dollars per share)	$ 1
Warrant [Member] | Price Range 2 [Member]
Exercise Price (in dollars per share)	$ 1.50
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares	3,874,000
Warrants Weighted Average Remaining Contractual Life	1 year 3 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 1.50
Warrants Exercisable (in shares) | shares	3,874,000
Warrants Weighted Average Exercisable Exercise Price (in dollars per share)	$ 1.50
Warrant [Member] | Price Range 3 [Member]
Exercise Price (in dollars per share)	$ 1.65
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares	400,000
Warrants Weighted Average Remaining Contractual Life	3 years 211 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 1.65
Warrants Exercisable (in shares) | shares	400,000
Warrants Weighted Average Exercisable Exercise Price (in dollars per share)	$ 1.65
Warrant [Member] | Price Range 4 [Member]
Exercise Price (in dollars per share)	$ 2.70
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares	2,626,000
Warrants Weighted Average Remaining Contractual Life	1 year 3 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 2.70
Warrants Exercisable (in shares) | shares	2,626,000
Warrants Weighted Average Exercisable Exercise Price (in dollars per share)	$ 2.70
Warrant [Member] | Price Range 5 [Member]
Exercise Price (in dollars per share)	$ 4.06
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares	125,575
Warrants Weighted Average Remaining Contractual Life	1 year 69 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 4.06
Warrants Exercisable (in shares) | shares	125,575
Warrants Weighted Average Exercisable Exercise Price (in dollars per share)	$ 4.06
Warrant [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares	7,225,575
Warrants Weighted Average Remaining Contractual Life	1 year 65 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 1.98
Warrants Exercisable (in shares) | shares	7,092,242
Warrants Weighted Average Exercisable Exercise Price (in dollars per share)	$ 1.99
Price Range 1 [Member]
Exercise Price (in dollars per share)	0.74
Price Range 2 [Member]
Exercise Price (in dollars per share)	0.75
Price Range 3 [Member]
Exercise Price (in dollars per share)	1.01
Price Range 4 [Member]
Exercise Price (in dollars per share)	1.57
Price Range 5 [Member]
Exercise Price (in dollars per share)	$ 1.90
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares	1,071,000
Warrants Weighted Average Remaining Contractual Life	3 years 339 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 1.19
Warrants Exercisable (in shares) | shares	440,667
Warrants Weighted Average Exercisable Exercise Price (in dollars per share)	$ 1.56

Note 13 - Assumptions Used to C

Note 13 - Assumptions Used to Calculate the Fair Values of Stock Options (Details)	12 Months Ended
	Dec. 31, 2015
Minimum [Member]
Expected term (in years)	3 years
Risk free interest rate	0.80%
Maximum [Member]
Expected term (in years)	10 years
Risk free interest rate	2.24%
Dividend yield	0.00%

Note 13 - Options Outstanding (

Note 13 - Options Outstanding (Details)	12 Months Ended
	Dec. 31, 2015$ / sharesshares
Price Range 1 [Member]
Exercise Price (in dollars per share)	$ 0.74
Options Number Outstanding (in shares) | shares	425,000
Options Weighted Average Remaining Contractual Life	4 years 226 days
Options Weighted Average Exercise Price (in dollars per share)	$ 0.74
Options Number Exercisable (in shares) | shares	0
Options Exercisable Weighted Average Exercise Price (in dollars per share)	$ 0.74
Price Range 2 [Member]
Exercise Price (in dollars per share)	$ 0.75
Options Number Outstanding (in shares) | shares	100,000
Options Weighted Average Remaining Contractual Life	4 years 105 days
Options Weighted Average Exercise Price (in dollars per share)	$ 0.75
Options Number Exercisable (in shares) | shares	0
Options Exercisable Weighted Average Exercise Price (in dollars per share)	$ 0.75
Price Range 3 [Member]
Exercise Price (in dollars per share)	$ 1.01
Options Number Outstanding (in shares) | shares	130,000
Options Weighted Average Remaining Contractual Life	9 years 354 days
Options Weighted Average Exercise Price (in dollars per share)	$ 1.01
Options Number Exercisable (in shares) | shares	130,000
Options Exercisable Weighted Average Exercise Price (in dollars per share)	$ 1.01
Price Range 4 [Member]
Exercise Price (in dollars per share)	$ 1.57
Options Number Outstanding (in shares) | shares	100,000
Options Weighted Average Remaining Contractual Life	1 year 288 days
Options Weighted Average Exercise Price (in dollars per share)	$ 1.57
Options Number Exercisable (in shares) | shares	100,000
Options Exercisable Weighted Average Exercise Price (in dollars per share)	$ 1.57
Price Range 5 [Member]
Exercise Price (in dollars per share)	$ 1.90
Options Number Outstanding (in shares) | shares	316,000
Options Weighted Average Remaining Contractual Life	1 year 29 days
Options Weighted Average Exercise Price (in dollars per share)	$ 1.90
Options Number Exercisable (in shares) | shares	210,667
Options Exercisable Weighted Average Exercise Price (in dollars per share)	$ 1.90
Options Number Outstanding (in shares) | shares	1,071,000
Options Weighted Average Remaining Contractual Life	3 years 339 days
Options Weighted Average Exercise Price (in dollars per share)	$ 1.19
Options Number Exercisable (in shares) | shares	440,667
Options Exercisable Weighted Average Exercise Price (in dollars per share)	$ 1.56

Note 13 - Status of Options Gra

Note 13 - Status of Options Granted and Changes During the Year (Details)	12 Months Ended
	Dec. 31, 2015USD ($)$ / sharesshares
Shares outstanding at beginning of period (in shares) | shares	1,960,130
Outstanding at beginning of period, weighted average exercise price (in dollars per share) | $ / shares	$ 2.55
Outstanding at beginning of period, average remaining life	3 years 339 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | shares	655,000
Granted, weighted average exercise price (in dollars per share) | $ / shares	$ 0.80
Granted, weighted average intrinsic value | $	$ 140,750
Shares forfeited (in shares) | shares	(87,500)
Forfeited, weighted average exercise price (in dollars per share) | $ / shares	$ 1.90
Shares expired (in shares) | shares	(1,456,630)
Expired, weighted average exercise price (in dollars per share) | $ / shares	$ 2.79
Shares outstanding at end of period (in shares) | shares	1,071,000
Outstanding at end of period, weighted average exercise price (in dollars per share) | $ / shares	$ 1.19
Outstanding at end of period, average remaining life	3 years 339 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value | $	$ 140,750
Shares vested and expected to vest (in shares) | shares	1,071,000
Vested and expected to vest, weighted average exercise price (in dollars per share) | $ / shares	$ 1.27
Vested and expected to vest, average remaining life	3 years 73 days
Vested and expected to vest, weighted average intrinsic value | $	$ 67,250
Warrants Exercisable (in shares) | shares	440,667
Warrants Weighted Average Exercisable Exercise Price (in dollars per share) | $ / shares	$ 1.56
Exercisable end of period, average remaining life	3 years 313 days

Note 14 - Significant Custome70

Note 14 - Significant Customers / Concentration (Details Textual) - Customer Concentration Risk [Member] - Sales Revenue, Net [Member]	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Major Customer 1 [Member]
Concentration Risk, Percentage	24.00%	10.00%
Major Customer 2 [Member]
Concentration Risk, Percentage	15.00%	5.00%
Major Customer 3 [Member]
Concentration Risk, Percentage	11.00%	4.00%
Major Customer 4 [Member]
Concentration Risk, Percentage	6.00%	3.00%
Number of Major Customers	4	4
Concentration Risk, Percentage	56.00%	22.00%

Note 14 - Net Sales by Geograph

Note 14 - Net Sales by Geographical Region (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Reportable Geographical Components [Member] | US And Canada [Member]
Net sales	$ 1,521,718	$ 3,152,919
Reportable Geographical Components [Member] | AUSTRALIA
Net sales	382,883	374,289
Reportable Geographical Components [Member] | South America [Member]
Net sales	2,400,000	16,845
Reportable Geographical Components [Member] | Asia [Member]
Net sales	1,139,090	2,004,409
Reportable Geographical Components [Member] | Europe [Member]
Net sales	10,368,896	9,012,730
Net sales	$ 15,812,587	$ 14,561,192

Note 14 - Sales by Product Line

Note 14 - Sales by Product Line (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Ceramic Diesel Particulate [Member]
Net sales	$ 5,081,304	$ 6,620,625
Liquid Filters [Member]
Net sales	10,347,010	7,532,528
Kiln Furniture [Member]
Net sales	384,273	408,039
Net sales	$ 15,812,587	$ 14,561,192

Note 15 - Acquisition (Details

Note 15 - Acquisition (Details Textual)	Jul. 29, 2014USD ($)shares	Jul. 29, 2014DKKshares	Dec. 31, 2014USD ($)shares	Dec. 31, 2015USD ($)
Provital Solutions AS [Member] | Scenario One for Year Ending December 31, 2014 [Member]
Business Acquisition Requirement for Minimum Revenues		DKK 65,000,000
Business Acquisition Requirement for EBITDA		6,500,000
Provital Solutions AS [Member] | Scenario Two for Year Ending December 31, 2014 [Member]
Business Acquisition Requirement for Minimum Revenues		50,000,000
Business Acquisition Requirement for EBITDA		10,000,000
Provital Solutions AS [Member] | Scenario One for the Year Ending December 31, 2015 [Member]
Business Acquisition Requirement for Minimum Revenues		120,000,000
Business Acquisition Requirement for EBITDA		12,000,000
Provital Solutions AS [Member] | Scenario Two for the Year Ending December 31, 2015 [Member]
Business Acquisition Requirement for Minimum Revenues		80,000,000
Business Acquisition Requirement for EBITDA		16,000,000
Provital Solutions AS [Member] | Scenario One for Years Ending December 31, 2014 and December 31, 2015 [Member]
Business Acquisition, Catch Up Provisions Minimum Revenues		185,000,000
Business Acquisition Catch Up Provisions Minimum EBITDA		18,500,000
Provital Solutions AS [Member] | Scenario Two For Years Ending December 31, 2014 and December 31, 2015 [Member]
Business Acquisition, Catch Up Provisions Minimum Revenues		130,000,000
Business Acquisition Catch Up Provisions Minimum EBITDA		26,000,000
Provital Solutions AS [Member] | For Year Ending December 31, 2016 [Member]
Business Acquisition, Catch Up Provisions Minimum Revenues		105,000,000
Business Acquisition Catch Up Provisions Minimum EBITDA		21,000,000
Provital Solutions AS [Member]
Common shares, cash	$ 2,300,000	DKK 12,600,000
Common shares (in shares) | shares	4,044,782	4,044,782
Goodwill | $	$ 9,383,593
Common shares, cash | $			$ 2,300,000
Common shares (in shares) | shares			4,044,782
Goodwill | $			$ 8,460,512	$ 7,582,749

Note 15 - Current Fair Value of

Note 15 - Current Fair Value of Consideration Transfered (Details)	Jul. 29, 2014USD ($)
Provital Solutions AS [Member]
Common shares, cash	$ 2,300,000
4,044,782 common shares at $1.5 a share	6,067,173
Current consideration transferred for the acquisition	$ 8,367,173

Note 15 - Current Fair Value 75

Note 15 - Current Fair Value of Consideration Transfered (Details) (Parentheticals) - $ / shares	Jul. 29, 2014	Dec. 31, 2014
Provital Solutions AS [Member]
Common shares (in shares)	4,044,782
Common shares issued in connection with acquisition (in dollars per share)	$ 1.50
Common shares (in shares)		4,044,782

Note 15 - Allocation of Conside

Note 15 - Allocation of Consideration Transferred (Details)	Jul. 29, 2014USD ($)
Provital Solutions AS [Member]
Cash	$ 425,316
Accounts receivable, net	856,566
Other receivables	1,279
Cost in excess of billings	592,747
Inventory	1,572,529
Prepaid expenses	3,794
Current deferred tax asset	154,682
Property and Equipment, net of accumulated depreciation	56,005
Deposits	12,084
Deferred tax asset long term	277,126
Goodwill	9,383,593
Total assets acquired	13,335,721
Lines of credit payable	(1,794,301)
Accounts payable	(1,637,815)
Accrued expense	(1,082,482)
Billings in excess of cost	(322,391)
Notes payable	(131,559)
Total net assets acquired	$ 8,367,173

Valuation and Qualifying Accoun

Valuation and Qualifying Accounts (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Inventory Valuation Reserve [Member]
Balance Beginning of Year	$ 449,098	$ 260,897
Charges to Costs and Expenses	174,143	203,996
Deductions	(16,737)	(15,795)
Balance End of Year	606,504	449,098
Allowance for Doubtful Accounts [Member]
Balance Beginning of Year	1,654,290	608,356
Charges to Costs and Expenses	(80,729)	216,919
Deductions	(485,690)	829,015
Balance End of Year	1,087,871	1,654,290
Balance Beginning of Year	2,103,388	869,253
Charges to Costs and Expenses	93,414	420,915
Deductions	(502,427)	813,220
Balance End of Year	$ 1,694,375	$ 2,103,388