CDTi Advanced Materials (CDTI) 10-Q 12 Nov 13 2013 Q3 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	9 Months Ended
	Sep. 30, 2013	Nov. 07, 2013
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'CLEAN DIESEL TECHNOLOGIES INC	'
Document Type	'10-Q	'
Current Fiscal Year End Date	'--12-31	'
Entity Common Stock, Shares Outstanding	'	9,290,186
Amendment Flag	'false	'
Entity Central Index Key	'0000949428	'
Entity Current Reporting Status	'Yes	'
Entity Voluntary Filers	'No	'
Entity Filer Category	'Smaller Reporting Company	'
Entity Well-known Seasoned Issuer	'No	'
Document Period End Date	30-Sep-13	'
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'Q3	'

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Current assets:	'	'
Cash	$4,558	$6,878
Accounts receivable, net	7,381	5,470
Inventories	6,501	8,697
Prepaid expenses and other current assets	1,571	1,757
Total current assets	20,011	22,802
Property and equipment, net	1,630	2,000
Intangible assets, net	3,760	4,369
Goodwill	5,988	6,087
Other assets	299	183
Total assets	31,688	35,441
Current liabilities:	'	'
Line of credit	4,448	5,476
Shareholder notes payable	3,000	100
Accounts payable	5,251	5,608
Accrued expenses and other current liabilities	4,914	4,514
Income taxes payable	539	22
Total current liabilities	18,152	15,720
Shareholder notes payable, noncurrent	4,533	7,478
Deferred tax liability	870	797
Total liabilities	23,555	23,995
Commitments and contingencies (Note 13)	'	'
Stockholders’ equity:	'	'
Preferred stock, par value $0.01 per share: authorized 100,000; no shares issued and outstanding	'	'
Common stock, par value $0.01 per share: authorized 24,000,000; issued and outstanding 9,290,186 and 7,254,464 shares at September 30, 2013 and December 31, 2012, respectively	93	73
Additional paid-in capital	187,853	186,106
Accumulated other comprehensive loss	-591	-112
Accumulated deficit	-179,222	-174,621
Total stockholders’ equity	8,133	11,446
Total liabilities and stockholders’ equity	$31,688	$35,441

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parentheticals) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Preferred stock par value (in Dollars per share)	$0.01	$0.01
Preferred stock, shares authorized (in Shares)	100,000	100,000
Preferred stock, shares issued (in Shares)	0	0
Preferred stock, shares outstanding (in Shares)	0	0
Common stock, par value (in Dollars per share)	$0.01	$0.01
Common stock, shares authorized (in Shares)	24,000,000	24,000,000
Common stock, shares issued (in Shares)	9,290,186	7,254,464
Common stock, shares outstanding (in Shares)	9,290,186	7,254,464

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations and Comprehensive Loss (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenues	$14,205	$14,400	$40,067	$48,123
Cost of revenues	9,925	10,526	29,424	36,135
Gross profit	4,280	3,874	10,643	11,988
Operating expenses:	'	'	'	'
Selling, general and administrative (including stock-based compensation expense of $168, $113, $530 and $308)	2,954	3,380	10,206	11,582
Research and development (including stock-based compensation expense of $1, $21, $5 and $56)	1,199	1,646	3,411	5,513
Severance and other charges	'	4	62	353
Total operating expenses	4,153	5,030	13,679	17,448
Income (loss) from operations	127	-1,156	-3,036	-5,460
Other expense:	'	'	'	'
Interest expense	-382	-442	-1,054	-1,109
Other expense, net	-703	-496	-542	-683
Total other expense	-1,085	-938	-1,596	-1,792
Loss from continuing operations before income taxes	-958	-2,094	-4,632	-7,252
Income tax (benefit) expense from continuing operations	121	-123	-45	-328
Net loss from continuing operations	-1,079	-1,971	-4,587	-6,924
Net (loss) income from operations of discontinued Energy Systems division	-11	201	-14	69
Net loss	-1,090	-1,770	-4,601	-6,855
Basic and diluted net loss per share:	'	'	'	'
Net loss from continuing operations per share (in Dollars per share)	($0.12)	($0.27)	($0.58)	($0.96)
Net loss from discontinued operations per share (in Dollars per share)	'	$0.03	'	$0.01
Net loss per share (in Dollars per share)	($0.12)	($0.24)	($0.58)	($0.95)
Weighted-average number of common shares outstanding - basic and diluted (in Shares)	9,247	7,229	7,945	7,223
Comprehensive Loss:	'	'	'	'
Net loss	-1,090	-1,770	-4,601	-6,855
Foreign currency translation adjustments	612	834	-479	757
Comprehensive loss	($478)	($936)	($5,080)	($6,098)

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Operations and Comprehensive Loss (Parentheticals) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Selling, General and Administrative Expenses [Member]	'	'	'	'
Stock-based compensation expense (in Dollars)	$168	$113	$530	$308
Research and Development Expense [Member]	'	'	'	'
Stock-based compensation expense (in Dollars)	$1	$21	$5	$56

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Cash Flows	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
	USD ($)	USD ($)
Cash flows from operating activities:	'	'
Net loss	($4,601,000)	($6,855,000)
Loss (income) from discontinued operations	14,000	-69,000
Adjustments to reconcile net loss to cash (used in) provided by operating activities:	'	'
Depreciation and amortization	975,000	1,069,000
Write-down of excess and obsolete inventory	499,000	969,000
Stock-based compensation expense	535,000	364,000
Loss on change in fair value of liability-classified warrants	151,000	59,000
Loss (income) from unconsolidated affiliates	373,000	-18,000
Loss on foreign currency transactions	73,000	32,000
Other	108,000	144,000
Changes in operating assets and liabilities:	'	'
Accounts receivable	-2,106,000	4,900,000
Inventories	1,565,000	1,388,000
Prepaid expenses and other assets	17,000	373,000
Accounts payable	-265,000	-762,000
Accrued expenses and other current liabilities	-342,000	-316,000
Income taxes	603,000	-504,000
Cash (used in) provided by operating activities of continuing operations	-2,401,000	774,000
Cash (used in) provided by operating activities of discontinued operations	-14,000	51,000
Net cash (used in) provided by operating activities	-2,415,000	825,000
Cash flows from investing activities:	'	'
Loan to unconsolidated affiliate	-263,000	'
Purchases of property and equipment	-142,000	-134,000
Proceeds from sale of property and equipment	'	13,000
Investment in unconsolidated affiliate	-66,000	'
Net cash used in investing activities	-471,000	-121,000
Cash flows from financing activities:	'	'
Net borrowings under demand line of credit	-1,027,000	563,000
Net proceeds from issuance of common stock and warrants	1,839,000	'
Proceeds from issuance of shareholder notes payable	'	3,000,000
Repayment of capital lease obligations	'	-9,000
Payments for shelf registration costs	'	-94,000
Payments for debt issuance costs	'	-75,000
Net cash provided by financing activities	812,000	3,385,000
Effect of exchange rates on cash	-246,000	89,000
Net change in cash	-2,320,000	4,178,000
Cash at beginning of period	6,878,000	3,471,000
Cash at end of period	4,558,000	7,649,000
Supplemental disclosures:	'	'
Cash paid for interest	778,000	833,000
Cash (received) paid for income taxes	($411,000)	$364,000

Organization

Organization	9 Months Ended
	Sep. 30, 2013
Disclosure Text Block [Abstract]	'
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	'
	1.       Organization
	a.       Description of Business
	Clean Diesel Technologies, Inc. (“CDTi” or the “Company”) is a technology-focused, global manufacturer and distributor of light duty vehicle and heavy duty diesel emissions control systems and products to major automakers, integrators and retrofitters. It has over 30 years of experience in the heavy duty diesel systems market and proven technical and manufacturing competence in the light duty vehicle catalyst market meeting auto makers’ stringent requirements. CDTi’s business is driven by increasingly stringent global emission standards for internal combustion engines, which are major sources of a variety of harmful pollutants. The Company has operations in the United States, Canada, France, Japan and Sweden as well as an Asian investment and European joint venture.
	b.       Liquidity
	The Company has suffered recurring losses and negative cash flows from operations since inception, resulting in an accumulated deficit of $179.2 million at September 30, 2013. The Company has funded its operations through equity sales, debt and bank borrowings.
	The Company has a $7.5 million secured demand facility backed by its receivables and inventory with Faunus Group International, Inc. (“FGI”). At September 30, 2013, the Company had $4.4 million in borrowings outstanding under this facility with $3.1 million available, subject to the availability of eligible accounts receivable and inventory balances for collateral. There is no guarantee that the Company will be able to borrow to the full limit of $7.5 million if FGI chooses not to finance a portion of its receivables or inventory. Additionally, FGI can cancel the facility at any time.
	The Company also has a purchase agreement with Lincoln Park Capital (“LPC”), under which the Company has the right, in its sole discretion, over a 30-month period ending in April 2014 to sell up to $10.0 million in common stock to LPC in amounts limited to $0.5 million to $1.5 million per sale, depending on the price of the Company’s common stock as set forth in the purchase agreement. The Company currently has registered 1,702,836 shares for purchase under the agreement. However, the aggregate number of shares issued pursuant to the purchase agreement is limited to 1,434,994 shares of common stock (19.99% of the outstanding shares of the Company’s common stock on October 7, 2011, the date of the purchase agreement) (the “Exchange Cap”), unless and until shareholder approval is obtained. The Exchange Cap is not applicable for at-market transactions, defined as when the average price for all shares purchased pursuant to the purchase agreement is greater than or equal to the signing price per the agreement of $2.76 plus $0.254, or $3.014 per share. Assuming a purchase price of $1.41 per share (the closing sale price of the Company’s common stock on September 30, 2013) and the purchase by LPC of the full 1,702,836 currently registered purchase shares, proceeds to the Company would be $2.4 million. If the purchase was limited to the Exchange Cap of 1,434,994 shares, the proceeds to the Company would be $2.0 million. There have been no sales to date under this arrangement.
	On May 15, 2012, the Company filed a shelf registration statement on Form S-3 with the Securities and Exchange Commission (“SEC”) (the “Shelf Registration”) which was declared effective by the SEC on May 21, 2012. The Shelf Registration permits the Company to sell, from time to time, up to an aggregate of $50.0 million of various securities, provided that the Company may not sell its securities in a primary offering pursuant to the Shelf Registration or any other registration statement on Form S-3 with a value exceeding one-third of its public float in any 12-month period (unless the Company’s public float rises to $75.0 million or more). On July 3, 2013, the Company sold 1,730,000 units for $1.25 per unit, with each unit consisting of one share of common stock and one half of a warrant to purchase one share of common stock with an exercise price of $1.25 per share. The Company received net proceeds of $1.7 million after deducting discounts and commissions to the underwriter and estimated offering expenses. See Note 9.
	On June 28, 2013, the Company and one of its directors entered into an agreement pursuant to which the director agreed to purchase $100,000 of the Company’s common stock in a private placement for $1.84 per share, the closing bid price on the day preceding the date of the agreement. In July 2013, the Company issued 54,347 shares of common stock to the director pursuant to this agreement.
	On January 30, 2013, the Company and Kanis S.A. agreed to amend certain terms of the Company’s outstanding 6% shareholder note due 2013 to change the maturity date from June 30, 2013 to June 30, 2015 and to increase the interest rate from 6% to 8% beginning on June 30, 2013. In addition, the payment premium due under this note was changed from a range of $100,000 to $200,000, based proportionally on the number of days that the loan remains outstanding, to a fixed amount of $250,000 with $100,000 payable on June 30, 2013 and the remaining amount payable at maturity on June 30, 2015.  Concurrent with its July 3, 2013 public offering, the Company converted $235,000 of premium and interest due June 30, 2013, pursuant to loans made to the Company by Kanis S.A., to 188,000 shares of common stock and warrants to purchase 94,000 shares of common stock.
	Also on January 30, 2013, the Company and Kanis S.A. entered into a letter agreement regarding the Company’s 8% subordinated convertible notes due 2016 whereby Kanis S.A. agreed not to accelerate the maturity of these convertible notes during the 2013 calendar year.
	At September 30, 2013, the Company had $4.6 million in cash. As discussed above, on July 3, 2013, the Company completed a public offering of common stock and warrants resulting in net proceeds of approximately $1.7 million after deducting discounts and commissions to the underwriter and related offering expenses.  In addition, pursuant to letter agreements entered into with Kanis S.A. and one of the Company’s directors on June 28, 2013, in July 2013, the Company issued shares and warrants to Kanis S.A. and shares to the director for an aggregate purchase price of $235,000 and $100,000, respectively.  The investment by Kanis S.A. reflects conversion into shares of common stock and warrants of premium and interest due on June 30, 2013, pursuant to loans made to the Company.  See Note 8.
	Management believes that the Company has sufficient working capital to fund operations into next year. However, there can be no assurances that the Company will be able to achieve projected levels of revenue in 2013 and beyond.If cash from operations is not sufficient for the working capital needs of the Company, the Company may seek additional financing in the form of funding from outside sources. In this regard, the Company may attempt to, among other things, (i) utilize potential availability under its line of credit with FGI; (ii) sell shares of common stock under its purchase agreement with LPC; or (iii) pursue an offering of equity or debt securities. However, there is no assurance that the Company will be able to raise additional funds or reduce its discretionary spending at a level sufficient for its working capital needs.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Significant Accounting Policies [Text Block]	'
	2.       Summary of Significant Accounting Policies
	a.       Basis of Presentation
	The accompanying unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the SEC for interim financial reporting. In the opinion of management, all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation have been reflected. The results reported in these condensed consolidated financial statements should not necessarily be taken as indicative of results that may be expected for the entire year. Certain financial information that is normally included in annual financial statements prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”), but is not required for interim reporting purposes, has been condensed or omitted. The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in Clean Diesel Technologies, Inc.’s Annual Report on Form 10-K for the fiscal year ended December 31, 2012.
	b.       Principles of Consolidation
	The condensed consolidated financial statements include the financial statements of the Company and its wholly owned subsidiaries. Intercompany transactions and balances have been eliminated in consolidation.
	c.        Use of Estimates
	The preparation of financial statements in conformity with U.S. GAAP requires management of the Company to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. These estimates and assumptions are based on management’s best estimates and judgment. On an ongoing basis, the Company evaluates its estimates and assumptions, including those related to impairment of goodwill and long-lived assets, stock-based compensation, the fair value of financial instruments including warrants, allowance for doubtful accounts, inventory valuation, taxes and contingent and accrued liabilities. The Company bases its estimates on historical experience and various other factors, including the current economic environment, which it believes to be reasonable under the circumstances. Estimates and assumptions are adjusted when facts and circumstances dictate. Actual results may differ from these estimates under different assumptions and conditions. Management believes that the estimates are reasonable.
	d.       Concentration of Risk
	For the three and nine months ended September 30, 2013, one automotive original equipment manufacturer (“OEM”) customer within the Catalyst segment accounted for 43% and 42% of the Company’s revenues, respectively. This customer accounted for 33% and 29% of the Company’s revenues for the three and nine months ended September 30, 2012, respectively. No other customers accounted for 10% or more of the Company’s revenues during these periods.
	For the periods presented below, certain customers accounted for 10% or more of the Company’s accounts receivable balance as follows:
	Customer	September 30,		December 31,
		2013		2012
	A	34%		31%
	B	11%		6%
	C	─		12%
	Customer A is an automotive OEM and customers B and C are diesel system distributors.
	For the periods presented below, certain vendors accounted for 10% or more of the Company’s raw material purchases as follows:
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
	Vendor	2013		2012		2013	2012
	A	18%		16%		17%	11%
	B	16%		10%		13%	7%
	C	15%		11%		14%	12%
	D	11%		13%		12%	12%
	Vendors A and B are substrate suppliers, vendor C is a catalyst supplier and vendor D is a rare earth supplier.
	e.        Net Loss per Share
	Basic net loss per share is computed using the weighted average number of common shares outstanding during the period. Diluted net loss per share is computed using the weighted average number of common shares and dilutive potential common shares. Dilutive potential common shares include employee stock options and restricted share units (“RSUs”) and warrants and debt that are exercisable for or convertible into the Company’s common stock.
	Diluted net loss per share excludes certain dilutive potential common shares outstanding as their effect is anti-dilutive. Because the Company incurred net losses in the three and nine months ended September 30, 2013 and 2012, the effect of potentially dilutive securities has been excluded in the computation of net loss per share and net loss from continuing operations per share as their impact would be anti-dilutive.
	Potential common stock equivalents excluded consist of the following (in thousands):
			September 30,
			2013		2012
	Common stock options		718		756
	RSUs		324		168
	Warrants		1,781		968
	Convertible notes		250		250
	Total		3,073		2,142
	--
	f.         Fair Value of Financial Instruments
	Accounting Standards Codification (“ASC”) Topic 825, “Financial Instruments,” requires disclosure of the fair value of financial instruments for which the determination of fair value is practicable. The fair values of the Company’s cash, trade accounts receivable, prepaid expenses and other current assets, accounts payable and accrued expenses and other current liabilities approximate carrying values due to the short maturity of these instruments. The fair value of borrowings under the line of credit approximates their carrying value due to the variable interest rates. The fair value of shareholder notes payable, calculated using level 3 inputs, including a Black-Scholes option-pricing model to value the debt’s conversion factor and a net present value model,was $7.5 million at September 30, 2013.
	g.       Reclassifications
	Certain prior-period amounts have been reclassified to conform to the current period presentation. These changes had no impact on the previously reported consolidated results of operations or stockholders' equity.
	h.       Recently Adopted Accounting Guidance
	In February 2013, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update ASU No. 2013-02, "Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income," which requires disclosure of significant amounts reclassified out of accumulated other comprehensive income by component and their corresponding effect on the respective line items of net income. This guidance is effective for reporting periods beginning after December 15, 2012.  Adoption of this guidance on January 1, 2013 did nothave a material impact on the Company’s consolidated financial statements or financial statement disclosures.
	i.         Recently Issued Accounting Guidance
	In March 2013, the FASB issued ASU No. 2013-05, "Parent's Accounting for the Cumulative Translation Adjustment upon Derecognition of Certain Subsidiaries or Groups of Assets within a Foreign Entity or of an Investment in a Foreign Entity," ("ASU 2013-05"). The objective of ASU 2013-05 is to resolve the diversity in practice regarding the release into net income of the cumulative translation adjustment upon derecognition of a subsidiary or group of assets within a foreign entity. ASU 2013-05 is effective for reporting periods beginning after December 15, 2013 and is not expected to have a material impact on the Company’s consolidated financial statements or financial statement disclosures.
	In June 2013, the FASB ratified Emerging Issues Task Force (EITF) Issue 13-C, “Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists” which concludes an unrecognized tax benefit should be presented as a reduction of a deferred tax asset when settlement in this manner is available under the tax law. The Company will adopt this amendment in the first quarter of 2014, and does not expect adoption of this standard to have a material impact on its consolidated financial statements or financial statement disclosures.

Inventories

Inventories	9 Months Ended
	Sep. 30, 2013
Inventory Disclosure [Abstract]	'
Inventory Disclosure [Text Block]	'
	3.       Inventories
	Inventories consist of the following (in thousands):
			September 30,		December 31,
			2013		2012
	Raw materials	$	3,330	$	4,340
	Work in progress		1,518		1,815
	Finished goods		1,653		2,542
	Inventories	$	6,501	$	8,697

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	9 Months Ended
	Sep. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill and Intangible Assets Disclosure [Text Block]	'
	4.       Goodwill and Intangible Assets
	Goodwill
	The Company’s Engine Control Systems reporting unit, which is within its Heavy Duty Diesel Systems reporting segment, contains all of the Company’s allocated goodwill. The changes in the carrying amount of goodwill for the nine months ended September 30, 2013 are as follows (in thousands):
	Balance at December 31, 2012	$	6,087
	Effect of translation adjustment		-99
	Balance at September 30, 2013	$	5,988
	Intangible Assets
	Intangible assets consist of the following (in thousands):
		Useful Life			September 30,		December 31,
		in Years			2013		2012
	Trade name	15 – 20		$	1,379	$	1,404
	Patents and know-how	5 – 12			4,946		5,072
	Customer relationships	4 – 8			1,250		1,269
	Intangible Assets, Gross				7,575		7,745
	Less accumulated amortization				-3,815		-3,376
	Intangible Assets, Net			$	3,760	$	4,369
	The Company recorded amortization expense related to amortizable intangible assets of $0.2 million during each of the three months ended September 30, 2013 and 2012.  The Company recorded amortization expense related to amortizable intangible assets of $0.5 million during each of the nine months ended September 30, 2013 and 2012.
	Estimated amortization expense for existing intangible assets for each of the next five years is as follows (in thousands):
	Years ending December 31:
	Remainder of 2013	$	174
	2014		694
	2015		690
	2016		538
	2017		527

Accrued_Expenses_and_Other_Cur

Accrued Expenses and Other Current Liabilities	9 Months Ended
	Sep. 30, 2013
Accrued Expenses And Other Current Liabilities [Abstract]	'
Accrued Expenses And Other Current Liabilities [Text Block]	'
	5.       Accrued Expenses and Other Current Liabilities
	Accrued expenses and other current liabilities consist of the following (in thousands):
			September 30,		December 31,
			2013		2012
	Accrued salaries and benefits	$	1,225	$	1,347
	Warrant liability		910		10
	Liability for consigned precious metals		888		694
	Accrued warranty		569		665
	Accrued severance and other charges		106		490
	Sales tax payable		210		216
	Other		1,006		1,092
	Accrued expenses and other current liabilities	$	4,914	$	4,514

Severance_and_Other_Charges

Severance and Other Charges	9 Months Ended
	Sep. 30, 2013
Restructuring and Related Activities [Abstract]	'
Restructuring and Related Activities Disclosure [Text Block]	'
	6.       Severance and Other Charges
	During 2012, the Company initiated actions to streamline both its facilities and its workforce. These actions were deemed necessary to meet the demands of the markets served by the Company and the economic environment and to improve profitability. In 2012, the Company terminated 41 employees throughout North America, Europe, the United Kingdom and Asia. The Company also incurred lease termination costs related to the exit of a lease in North America and asset impairment expense related to the exit of this facility as well as to the exit of a leased facility in the United Kingdom. In 2013, the Company terminated two employees in the United Kingdom related to these actions.
	The following summarizes the activity in the Company’s accrual for severance and other charges (in thousands):
			Severance		Lease Exit Costs		Total
	Accrual at December 31, 2012	$	306	$	184	$	490
	Additional Expense Incurred		62		-		62
	Payments and other settlements in 2013		-339		-103		-442
	Translation adjustment		-4		-		-4
	Accrual at September 30, 2013	$	25	$	81	$	106
	The Company expects to pay substantially all of the remaining amounts during the year ending December 31, 2013.

Accrued_Warranty

Accrued Warranty	9 Months Ended
	Sep. 30, 2013
Product Warranties Disclosures [Abstract]	'
Product Warranty Disclosure [Text Block]	'
	7.       Accrued Warranty
	Changes in the Company’s product warranty reserve are as follows (in thousands):
			Nine Months Ended
			September 30,
			2013		2012
	Balance at beginning of period	$	665	$	645
	Accrued warranty expense		529		588
	Warranty claims paid		-600		-658
	Translation adjustment		-25		21
	Balance at end of period	$	569	$	596

Debt

Debt	9 Months Ended
	Sep. 30, 2013
Debt Disclosure [Abstract]	'
Debt Disclosure [Text Block]	'
	8.       Debt
	Debt consists of the following (in thousands):
	September 30,	December 31,
	2013	2012
	Line of credit with FGI	$	4,448	$	5,476
	8% shareholder note due 2015		1,576		1,638
	8% subordinated convertible shareholder notes due 2016		3,000		3,000
	8% shareholder note due 2015		2,957		2,940
	Debt, Total		11,981		13,054
	Less current portion		-7,448		-5,576
	Long-term debt, net of current portion	$	4,533	$	7,478
	Line of Credit with FGI
	On February 14, 2011, the Company and certain of its subsidiaries (the “Credit Subsidiaries”) entered into Sale and Security Agreements with FGI to provide for a $7.5 million secured demand facility backed by its receivables and inventory (as amended, the “FGI Facility”). The Company and the Credit Subsidiaries also entered into guarantees to guarantee the performance of their obligations under the Sale and Security Agreements. The Company also granted FGI a first lien collateral interest in substantially all of its assets. On August 15, 2012, the Company and FGI agreed to amend the FGI Facility. As amended, the initial term was extended from February 14, 2013 to August 15, 2015 and may be extended at the Company’s option for additional one-year terms. However, FGI can cancel the facility at any time.
	Under the FGI Facility, FGI can elect to purchase eligible accounts receivables from the Company and the Credit Subsidiaries at up to 80% of the value of such receivables (retaining a 20% reserve). Purchased receivables are subject to full recourse to the Company in the event of nonpayment by the customer. FGI becomes responsible for the servicing and administration of the accounts receivable purchased. The Company is not obligated to offer accounts in any month and FGI has the right to decline to purchase any accounts. At FGI’s election, FGI may advance the Company up to 80% of the value of any purchased accounts receivable, subject to the $7.5 million limit. Reserves retained by FGI on any purchased receivable are expected to be refunded to the Company net of interest and fees on advances once the receivables are collected from customers. The Company may also borrow against eligible inventory up to the inventory sublimit, as determined by FGI, subject to the aggregate $7.5 million limit under the FGI Facility and certain other conditions. At September 30, 2013, the inventory sublimit amount was the lesser of $1.5 million or 50% of the aggregate purchase price paid for accounts receivable purchased under the FGI facility.
	The interest rate on advances or borrowings under the FGI Facility is the greater of (i) 6.50% per annum and (ii) 2.50% per annum above the prime rate, as defined in the FGI Facility. Any advances or borrowings under the FGI Facility are due on demand. The Company also agreed to pay FGI collateral management fees of 0.30% per month on the face amount of eligible receivables as to which advances have been made and 0.38% per month on borrowings against inventory, if any. At any time outstanding advances or borrowings under the FGI Facility are less than $2.4 million, the Company agreed to pay FGI standby fees of (i) the interest rate on the difference between $2.4 million and the average outstanding amounts and (ii) 0.44% per month on 80% of the amount by which advances or borrowings are less than the agreed $2.4 million minimum.
	If the Company terminates the FGI facility prior to the last day of the initial term, as extended, or any additional term, it must pay a termination fee of 2% of the facility limit then in effect. No termination fee will be due if the Company notifies FGI of its intent to terminate within 10 days of FGI increasing the reserve percentage for accounts to greater than 40% for more than 30 consecutive days. FGI may terminate the facility at any time. The termination fee is not payable upon a termination by FGI or upon non-renewal.
	The Company accounts for the sale of accounts receivable under the FGI Facility as a secured borrowing with a pledge of the subject receivables as collateral in accordance with ASC 860, “Transfers and Servicing.” At September 30, 2013, the Company had $3.9 million of gross accounts receivable pledged to FGI as collateral for short-term debt in the amount of $2.9 million. At September 30, 2013, the Company also had $1.5 million in borrowings outstanding against eligible inventory. The Company was in compliance with the terms of the FGI Facility at September 30, 2013. However, there is no guarantee that the Company will be able to borrow to the full limit of $7.5 million if FGI chooses not to finance a portion of its receivables or inventory.
	8% Shareholder Note Due 2015
	On December 30, 2010, the Company executed a Loan Commitment Letter with Kanis S.A., a shareholder of the Company, pursuant to which Kanis S.A. loaned the Company $1.5 million. The loan is unsecured and bears interest on the unpaid principal at a rate of 6%, with interest only payable quarterly in arrears, commencing March 31, 2011. In addition to principal and accrued interest, the Company was obligated to pay Kanis S.A. at maturity a “Payment Premium” ranging from $100,000 to $200,000 based proportionally on the number of days that the loan remains outstanding. There is no prepayment penalty. The loan originally matured on June 30, 2013. On January 30, 2013, the Company and Kanis S.A. agreed to amend certain terms of the loan to change the maturity date from June 30, 2013 to June 30, 2015 and to increase the interest rate from 6% to 8% beginning on June 30, 2013. In addition, the payment premium due under this note was changed to a fixed amount of $250,000 with $100,000 payable on June 30, 2013 and the remaining amount payable at maturity on June 30, 2015.
	On June 28, 2013, the Company and Kanis S.A. entered into a letter agreement pursuant to which Kanis S.A. agreed that the $100,000 payment premium due June 30, 2013 and $135,000 in accrued interest on the shareholder notes payable to Kanis S.A. as of June 30, 2013 could be paid, at the option of the Company, in cash or by issuance of equity securities of the Company. On July 3, 2013, concurrent with the closing of its public offering, the Company issued to Kanis S.A. 188,000 shares of common stock and warrants to purchase up to 94,000 shares of common stock at $1.25 per share, in satisfaction of the payment premium and accrued interest, as described above.
	In connection with the original loan, the Company issued Kanis S.A. warrants to acquire 25,000 shares of its common stock at $10.40 per share. The relative estimated fair value of such warrants represents a discount from the face amount of the loan and has been recorded as a discount from the loan amount. The discount is being amortized using the effective interest method over the term of the loan.
	8% Subordinated Convertible Shareholder Notes Due 2016
	On April 11, 2011, the Company entered into a Subordinated Convertible Notes Commitment Letter with Kanis S.A. that provides for the sale and issuance by the Company of 8% subordinated convertible notes (the “Notes”). As provided in the Commitment Letter, on May 6, 2011 Kanis S.A. purchased from the Company at par $3.0 million aggregate principal amount of the Notes, which bear interest at a rate of 8% per annum, payable quarterly in arrears.
	The Notes have a stated maturity of five years from the date of issuance. The original agreement allowed for the acceleration of the maturity of the Notes if: (i) the Company was in breach of the notes or other agreements with Kanis S.A., or (ii) Kanis S.A. provided written notice, not less than 30 days prior to such date, that it elected to accelerate the maturity to a date not earlier than November 11, 2012. On February 16, 2012, the Company and Kanis S.A. agreed to amend the terms of the Notes to modify the early redemption date from November 11, 2012 to May 12, 2013. On January 30, 2013, the Company and Kanis S.A. entered into a letter agreement regarding the Notes whereby Kanis S.A. agreed not to accelerate the maturity of these convertible notes during the 2013 calendar year. The Notes have been classified as current in the condensed consolidated balance sheet at September 30, 2013.
	The Notes also provide that the Company has the option to redeem the Notes at any time at a price equal to 100% of the face amount plus accrued and unpaid interest through the date of redemption. There is no prepayment penalty. The Notes are unsecured obligations of the Company and subordinated to existing and future secured indebtedness of the Company.
	The outstanding principal balance of the Notes plus accrued and unpaid interest were convertible into shares of the Company’s common stock at an initial conversion price equal to $7.044 per share, which was 120% of the closing bid price per share of the Company’s common stock on April 8, 2011, into no more than 369,853 shares. The Company evaluated the Notes and determined that there were no embedded derivatives contained in the Notes that require separate accounting. Additionally, there was no beneficial conversion feature associated with the Notes since the conversion price was not lower than the estimated fair market value of the Company’s common stock on the issuance date. As such, the entire proceeds from the Notes are recorded as debt in the condensed consolidated balance sheets.
	On July 27, 2012, the Company and Kanis S.A. further amended the terms of the Notes to modify the conversion feature. As amended, the outstanding principal balance of the Notes, and accrued and unpaid interest are convertible, at the option of Kanis S.A., at any time upon written notice given not less than 75 calendar days prior to the date of conversion, into no more than 250,000 shares of the Company’s common stock at a conversion price of $4.00 per share. The Company evaluated the modification and determined that the modification was not substantial and did not qualify as a debt extinguishment. Accordingly, no gain or loss was recognized from the modification.
	In connection with the February 16, 2012 amendment, the Company issued to Kanis S.A. warrants to acquire 5,000 shares of its common stock at $3.80 per share. The warrants are exercisable on or after August 16, 2014 and expire on the earlier of (x) August 16, 2017 and (y) that date that is 30 days after the Company gives notice to the warrant holder that the market value of one share of its common stock has exceeded 130% of the exercise price of the warrant for 10 consecutive days on or after August 16, 2014. The Company did not receive any cash consideration for the issuance of the warrants. The Company relied on the private placement exemption provided by Regulation S.
	8% Shareholder Note Due 2015
	On July 27, 2012, the Company executed a Loan Commitment Letter with Kanis S.A., pursuant to which the Company issued a promissory note in the principal amount of $3.0 million, which bears interest at 8% per annum, payable quarterly in arrears. The promissory note matures on July 27, 2015. There is no prepayment penalty or premium. The promissory note is unsecured.
	In connection with the promissory note, the Company issued Kanis S.A. a warrant to acquire 45,000 shares of its common stock at $2.09 per share, a third of which becomes exercisable on the issuance date and each of the first and second anniversaries of the issuance date. This warrant expires on July 27, 2018. The Company did not receive any cash consideration for the issuance of this warrant, which was issued in reliance upon the private placement exemption provided by Regulation S. The relative estimated fair value of such warrant represents a discount from the face amount of the loan and has been recorded as a discount from the loan amount. The discount is being amortized using the effective interest method over the term of the loan.

Stockholders_Equity

Stockholders' Equity	9 Months Ended
	Sep. 30, 2013
Stockholders' Equity Note [Abstract]	'
Stockholders' Equity Note Disclosure [Text Block]	'
	9.       Stockholders’ Equity
	At September 30, 2013, the Company had 24.1 million shares authorized, 24.0 million of which are $0.01 par value common stock and 0.1 million of which are $0.01 par value preferred stock.
	On June 28, 2013, the Company and one of its directors entered into an agreement pursuant to which the director agreed to purchase $100,000 of the Company’s common stock in a private placement at a price of $1.84 per share, the closing bid price on the day preceding the date of the agreement. In July 2013, the Company issued 54,347 shares of common stock to the director under this agreement.
	Concurrent with its public offering of common stock, on July 3, 2013, the Company converted $235,000 of premium and interest due June 30, 2013, pursuant to loans made to the Company by Kanis S.A., to 188,000 shares of common stock and warrants to purchase 94,000 shares of common stock. The Warrants have an exercise price of $1.25 per share, and are exercisable immediately for a period of five years. The Company relied on the private placement exemption provided by Regulation S.
	Shelf Registration and Offering
	On May 15, 2012, the Company filed a Shelf Registration which was declared effective by the SEC on May 21, 2012. The Shelf Registration permits the Company to sell, from time to time, up to an aggregate of $50.0 million of various securities, including common stock, preferred stock, warrants to purchase common stock or preferred stock and units consisting of one or more shares of common stock, shares of preferred stock, warrants, or any combination of such securities. However, the Company may not sell its securities in a primary offering pursuant to the Shelf Registration or any other registration statement on Form S-3 with a value exceeding one-third of its public float in any 12-month period (unless the Company’s public float rises to $75.0 million or more). The Shelf Registration is intended to provide the Company with additional flexibility to access capital markets for general corporate purposes, subject to market conditions and the Company's capital needs.
	On June 28, 2013, the Company entered into an underwriting agreement (the “Underwriting Agreement”) with Roth Capital Partners, LLC, (the “Underwriter”) related to the public offering (the “Offering”) of an aggregate 1,600,000 shares of the Company’s common stock together with warrants to purchase up to 800,000 shares  of common stock. The Underwriters were also granted a 30 day option to purchase up to an additional 240,000 shares of common stock and/or warrants to purchase up to an additional 120,000 shares of common stock to cover overallotments, if any. The offering was made pursuant to the Company’s Shelf Registration discussed above. On July 3, 2013, the Company closed the offering in which it sold 1,730,000 shares of common stock at a price of $1.245 per share and warrants to purchase up to 865,000 shares at a price per warrant of $0.01, including 130,000 shares and 65,000 warrants upon partial exercise of the Underwriter’s over-allotment option. The securities were sold in units consisting of one share of common stock and one half of a warrant to purchase one share of common stock for a price of $1.25 per unit. The warrants have an exercise price of $1.25 per share, and are exercisable immediately for a period of five years.  The Company received net proceeds of approximately $1.7 million after deducting discounts and commissions to the Underwriter and estimated offering expenses. The Company intends to use the proceeds for general corporate purposes, which may include working capital, general and administrative expenses, capital expenditures and implementation of its strategic priorities.
	In accordance with the Underwriting Agreement, the Company issued the Underwriter a warrant to purchase in aggregate 34,600 shares of the Company’s common stock with an exercise price of $1.25 per share. The warrant is exercisable beginning on December 25, 2013 through June 28, 2018. The fair value of the warrants, which approximated zero, was accounted for as a cost of the offering.
	Common Stock Purchase Agreement with LPC
	On October 7, 2011, the Company signed a Purchase Agreement with LPC, together with a Registration Rights Agreement, whereby LPC agreed to purchase up to $10.0 million of the Company’s common stock over a 30-month period. Pursuant to the Registration Rights Agreement, the Company filed a registration statement on Form S-1 with the SEC on October 13, 2011 covering 1,823,577 shares that have been issued or may be issued to LPC under the Purchase Agreement. Of the shares registered, 40,247 shares were issued to LPC as a commitment fee upon entering into the Purchase Agreement; 80,494 shares may be issued to LPC pro rata as an additional commitment fee as up to $10.0 million of the Company’s common stock is purchased by LPC; and 1,702,836 represent shares that the Company may sell to LPC under the Purchase Agreement. The registration statement related to the transaction was declared effective by the SEC on December 5, 2011. Accordingly, the Company has the right, in its sole discretion, over a 30-month period to sell shares of its common stock to LPC in amounts limited to $0.5 million to $1.5 million per sale, depending on the price of the Company’s common stock as set forth in the Purchase Agreement, up to the aggregate amount of $10.0 million. The aggregate number of shares issued pursuant to the Purchase Agreement is limited to the Exchange Cap, which is 1,434,994 shares of common stock (19.99% of the outstanding shares of the Company’s common stock on October 7, 2011, the date of the Purchase Agreement, unless and until shareholder approval is obtained. The Exchange Cap is not applicable for at-market transactions, defined as when the average price for all shares purchased pursuant to the purchase agreement is greater than or equal the signing price of $2.76 plus $0.254, or $3.014 per share.There have been no sales to date under this arrangement.
	There are no upper limits to the price LPC may pay to purchase the Company’s common stock and the purchase price of the shares related to the $10.0 million of future funding will be based on the prevailing market prices of the Company’s shares preceding the time of sales as computed in accordance with the Purchase Agreement without any fixed discount, with the Company controlling the timing and amount of future sales, if any, of shares to LPC. The purchase price per share is equal to the lesser of the lowest sales price of the Company’s common stock on the purchase date or the average of the three lowest closing sales prices of the Company’s common stock during the twelve consecutive business days prior to the date of the purchase by LPC.
	LPC has agreed not to cause or engage in any manner whatsoever, any direct or indirect short selling or hedging of the Company’s shares of common stock. The Company may terminate the Purchase Agreement at any time at its discretion without any cost or penalty. Any proceeds received by the Company under the Purchase Agreement are expected to be used for general corporate purposes, which may include working capital, general and administrative expenses, capital expenditures and implementation of the Company's strategic priorities.

Warrants

Warrants	9 Months Ended
	Sep. 30, 2013
Warrants Disclosures [Abstract]	'
Warrants Disclosures [Text Block]	'
	10.    Warrants
	From time to time, the Company issues warrants to purchase its common stock. These warrants have been issued for consulting services and in connection with the Company’s issuance of debt and sales of its common stock.
	Warrant activity is summarized as follows:
	Shares	Weighted	Range of
		Average	Exercise Prices
		Exercise
		Price
	Outstanding at December 31, 2012	923,090		$	7.77		$2.09 - $48.90
	Warrants issued	993,600		$	1.25		$1.25
	Warrants expired/forfeited	-7,577		$	48.9		$48.90
	Warrants cancelled	-128,333		$	7.92		$7.92
	Outstanding at September 30, 2013	1,780,780		$	3.95		$1.25-$10.40
	Warrants exercisable at September 30, 2013	1,726,180		$	4.02		$1.25-$10.40
	On September 30, 2013, the Company and Kanis S.A.agreed to cancel a warrant to purchase 128,333 shares of Company common stock at $7.92 per share. The warrant was originally issued on December 22, 2010 and was scheduled to expire on December 22, 2013.
	Warrant Liability
	The Company evaluates warrants on issuance and at each reporting date to determine proper classification as equity or as a liability.
	The Company has 379,678 outstanding warrants with an exercise price of $7.92, original issuance date of October 15, 2010 and expiration date of October 15, 2013 that it is required to physically settle by delivering registered shares. In addition, while the relevant warrant agreement does not require cash settlement if the Company fails to maintain registration of the warrant shares, it does not specifically preclude cash settlement. Accordingly, the Company’s agreement to deliver registered shares without express terms for settlement in the absence of continuous effective registration is presumed to create a liability to settle these warrants in cash, requiring liability classification.
	The warrant agreements for warrants to purchase 865,000 shares of Company common stock at $1.25 per share issued on July 3, 2013 in a public offering and warrants to purchase 94,000 shares of Company common stock at $1.25 per share issued concurrently with the public offering in a private placement include full-ratchet down-round price protection features. Accordingly, if the Company issues or sells equity securities for a consideration per share less than the exercise price of the warrants or changes the purchase or conversion price of securities convertible, exercisable or exchangeable for common stock, the exercise price of the warrants will adjust to such lower per share consideration amount, subject to certain exceptions. These warrants are not indexed to the Company’s stock and, therefore, require liability classification under ASC 815, “Derivatives and Hedging.”
	The contracts for the remaining warrants allow for settlement in unregistered shares and do not contain any other characteristics that would result in liability classification. Accordingly, these instruments have been classified in stockholders’ equity in the accompanying condensed consolidated balance sheets and are only valued on the issuance date and not subsequently revalued. The Company evaluated the balance sheet classification of all warrants at September 30, 2013 and noted no changes.
	The liability-classified warrants are considered Level 3 in the fair value hierarchy because they are valued based on unobservable inputs. The Company determined the fair value of its liability-classified warrants using a Monte Carlo simulation model. This model is dependent on several variables such as the instrument’s expected term, expected strike price, expected risk-free interest rate over the expected term of the instrument, expected dividend yield rate over the expected term and the expected volatility. The expected strike price is based on a weighted average probability analysis of the strike price changes expected during the term as a result of the full-ratchet down-round price protection. Due to the significant change in the Company following the October 15, 2010 business combination between CDTi and Catalytic Solutions, Inc. (the “Merger”), CDTi’s pre-Merger historical price volatility was not considered representative of expected volatility going forward. Therefore, the Company has used an estimate based upon a weighted average of implied and historical volatility of a portfolio of peer companies and CDTi’s post-Merger historical volatility for the valuation of its warrants.
	The assumptions and fair value of warrants issued on July 3, 2013 were as follows:
	Expected volatility	80.50%
	Risk-free interest rate	1.64%
	Dividend yield	─
	Expected life in years	5
	Grant Date Fair value	$0.78
	The liability, included in accrued expenses and other current liabilities in the accompanying condensed consolidated balance sheets, is re-measured at the end of each reporting period with changes in fair value recognized in other expense in the condensed consolidated statements of operations and comprehensive loss.
	The assumptions used in the Monte Carlo simulation model at September 30, 2013 were as follows:
	Expected volatility	77.00%
	Risk-free interest rate	1.46%
	Dividend yield	─
	Price of CDTi common stock	$1.42
	Fair value	$0.95
	The following is a reconciliation of the warrant liability measured at fair value using Level 3 inputs (in thousands):
	Nine Months Ended
	September30,
			2013			2012
	Balance at beginning of period	$	10		$	100
	Issuance of common stock warrants		749			─
	Re-measurement of common stock warrants		151			59
	Balance at end of period	$	910		$	159

StockBased_Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	'
	11.    Stock-Based Compensation
	The Clean Diesel Technologies, Inc. Stock Incentive Plan, as amended (the “Plan”), provides for the awarding of incentive stock options, non-qualified stock options, stock appreciation rights, restricted shares, performance awards, bonuses or other forms of share-based awards, or combinations of these to the Company’s directors, officers, employees, consultants and advisors (except consultants or advisors in capital-raising transactions) as determined by the board of directors. As of September 30, 2013, there were 402,187 shares available for future grants under the Plan.
	Total stock-based compensation expense for both employee and non-employee awards for the three and nine months ended September 30, 2013 was $0.2 million and $0.5 million, respectively. Total stock-based compensation expense for both employee and non-employee awards for the three and nine months ended September 30, 2012 was $0.1 million and $0.4 million, respectively.
	Stock Options
	Stock option activity is summarized as follows:
	Weighted
					Average
					Exercise	Weighted Average Remaining Contractual Term
		Options			Price	(in years)	Aggregate Intrinsic Value
	Outstanding at December 31, 2012	785,986		$	$7.81
	Granted	─
	Forfeited /expired	-68,110		$	$10.63
	Outstanding at September 30, 2013	717,876		$	$7.54	7.8	─
	Exercisable at September 30, 2013	462,239		$	$10.11	7.44	─
	The aggregate intrinsic value represents the difference between the exercise price and the Company’s closing stock price on the last trading day of the quarter.
	The Company estimates the fair value of stock options using a Black-Scholes valuation model. The weighted-average fair value and assumptions used for the nine months ended September 30, 2012 is summarized below. There were no issuances of stock options during the nine months ended September 30, 2013.
				2012
	Expected volatility			84.40%
	Risk-free interest rate			1.10%
	Dividend yield			─
	Expected life in years			5.96
	Weighted average grant date fair value		$	2.07
	Compensation costs for stock options that vest over time are recognized over the vesting period on a straight-line basis. As of September 30, 2013, the Company had $0.4 million of unrecognized compensation cost related to stock option grants that remained to be recognized over vesting periods. These costs are expected to be recognized over a weighted average period of 1.4 years.
	There was no cash received from option exercises under any share-based payment arrangements for the nine months ended September 30, 2013 or 2012.
	Restricted Share Units
	RSU activity is as follows:
		Shares			Weighted	Aggregate
					Average	Intrinsic Value
					Grant Date Fair Value
	Non-vested share units at December 31, 2012	167,165		$	3.08	─
	Granted	254,411		$	2.17	─
	Vested	-63,375		$	3.38	─
	Forfeited	-34,402		$	2.48	─
	Non-vested share units at September 30, 2013	323,799		$	2.36	─
	During the nine months ended September 30, 2013, the Company granted 254,411 RSUs to executive officers and other key employees. The RSUs are time-based with 225,221 RSUs vesting over three years and the remaining 29,190 vesting approximately one year from the date of grant.
	As of September 30, 2013, the Company had approximately $0.6 million of unrecognized compensation expense, net of estimated forfeitures, related to RSUs, which will be recognized over a weighted average estimated remaining life of 2.1 years.

Joint_Venture

Joint Venture	9 Months Ended
	Sep. 30, 2013
Joint Ventures Disclosure [Abstract]	'
Joint Ventures Disclosure [Text Block]	'
	12.    Joint Venture
	On February 19, 2013, the Company entered into a joint venture agreement (the “Joint Venture Agreement”) with Pirelli & C. Ambiente SpA (“Pirelli”) to form a joint venture entity, Eco Emission Enterprise Srl under the laws of Italy (the “Joint Venture”), through which the Company and Pirelli would jointly sell their emission control products in Europe and the Commonwealth of Independent States (“CIS”) countries. Pursuant to the agreement, both partners would sell products to the Joint Venture which would earn a commission to market and sell these products. As such, all of the Company’s existing business in Sweden and the UK would be conducted through the Joint Venture. The Joint Venture commenced operations in April 2013.
	The Joint Venture Agreement provides that the Company and Pirelli each hold 50% of the total issued share capital of the Joint Venture. Pursuant to the Joint Venture Agreement, in February 2013, the Company and Pirelli each contributed €50,000 (approximately $66,000) to the Joint Venture as initial capital contributions. In addition, in accordance with the Joint Venture Agreement, CDTi and Pirelli provided shareholder loans of €200,000 (approximately $261,000) each in April 2013. On July 25, 2013, the Company and Pirelli agreed to convert €175,000 each of their shareholder loans to the Joint Venture into equity contributions as required by local statutory regulations. On October 10, 2013, the Company and Pirelli each contributed an additional €120,000 (approximately $166,000) to the Joint Venture.
	Since the commencement of operations, the Joint Venture has incurred a loss of €0.6 million (approximately $0.8 million). The Company has recorded a loss of $0.4 million, representing its 50% share of the Joint Venture’s losses, in other expense in the accompanying condensed consolidated statement of operations.
	On November 8, 2013, as a result of slower than anticipated progress in achieving sales objectives initially established for the Joint Venture, the Company and Pirelli agreed to voluntarily dissolve the Joint Venture in accordance with the Joint Venture Agreement. The Joint Venture is planned to cease operations on November 30, 2013, with dissolution expected to be completed as soon as practicable. See Note 15.

Contingencies

Contingencies	9 Months Ended
	Sep. 30, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies Disclosure [Text Block]	'
	13.    Contingencies
	Legal Proceedings
	On April 30, 2010, the Company received notice of an administrative complaint filed by its former chief financial officer. The complaint was filed with the Hartford, Connecticut office of the U.S. Department of Labor (“U.S. DOL”) under Section 806 of the Sarbanes-Oxley Act of 2002 and alleges, among other things, that the Company’s termination of her employment on April 19, 2010 was retaliatory and due to her alleged protected activity associated with comments she made to the Company’s board of directors at their meeting on March 26, 2010. On June 14, 2010, the Company filed its response to the complaint denying the allegations and requesting a dismissal of the matter. Thereafter, the Company responded to the U.S. DOL investigator’s requests for additional information, to requests for telephonic interviews with certain Company managers, and to a request for supplemental briefing on relevant legal issues associated with the claim at issue. On April 16, 2012, the U.S. DOL requested that the Company take part in non-binding mediation with the former employee. Although the Company agreed to participate with a mediation session, the U.S. DOL reported that the former employee declined to participate in mediation. On September 27, 2013, the Secretary of Labor issued his preliminary findings on the matter which concluded that, according to the Secretary, there was reasonable cause to support the claims asserted by the former employee. In connection with these findings, the Occupational Safety and Health Administration ordered the Company to pay damages in excess of $1.9 million and take certain other actions. On October 22, 2013, the Company filed its Objections and Request for Hearing with the U.S. DOL which triggered the appointment of an Administrative Law Judge. A hearing on the matter has been scheduled for January 6, 2014. The hearing will be on a de novo basis thus allowing the Company the opportunity to provide a comprehensive defense to the claims asserted by the former employee. The amount or range of loss, if any, and costs associated with this matter are not estimable at this time. Accordingly, no accrual has been recorded for this matter.
	BP Products North America (“BP”), a subsidiary of British Petroleum (BP p.l.c.) had made claims against Johnson Matthey (“JM”) as the parent company of and purchaser of Applied Utility Systems, Inc. (“AUS”), a former subsidiary of the Company, pertaining to the Whiting Refinery SPS NOx Reduction Project. On May 12, 2010, JM tendered to the Company a claim for indemnification under the Asset Purchase Agreement dated October 1, 2009 (the “Asset Purchase Agreement”), among JM, the Company and AUS. A mediation between the parties did not result in a settlement of the claims by BP. On May 14, 2012, JM filed a lawsuit in California state court against BP alleging breach of contract. On June 25, 2012, BP removed the case to federal court. On June 11, 2013, BP, JM and the Company entered into a Settlement Agreement and Mutual Releases pursuant to which they settled all claims. An Order Dismissing All Claims and Counterclaims with Prejudice was entered by the Court on July 3, 2013. The settlement agreement had no material impact on the Company. Under the indemnification clauses of the Asset Purchase Agreement, the Company may be liable for legal expense incurred by JM.  These legal costs may be offset against funds withheld by JM from the acquisition of AUS.  At this point, the Company has not been asked to reimburse JM for any legal expense, nor does the Company know what funds are remaining from the holdback on the AUS acquisition.
	In addition to the foregoing, the Company is involved in legal proceedings from time to time in the ordinary course of its business. Management does not believe that any of these claims and proceedings against it is likely to have, individually or in the aggregate, a material adverse effect on the Company’s consolidated financial condition, results of operations or cash flows.
	Sales and Use Tax Audit
	The Company is undergoing a sales and use tax audit by the State of California on AUS for the period of 2007 through 2009. The audit has identified a project performed by the Company during that time period for which sales tax was not collected and remitted and for which the State of California asserts that proper documentation of resale may not have been obtained and that the Company owes sales tax of $1.3 million. The Company contends and believes that it received sufficient and proper documentation from its customer to support not collecting and remitting sales tax from that customer and is actively disputing the audit report with the State of California. On August 12, 2013, the Company appeared at an appeals conference with the Board of Equalization.  The outcome of that hearing is still pending. Accordingly, no accrual has been recorded for this matter as the Company does not assess a loss as being probable. Should the Company not prevail in this matter, it will pursue reimbursement from the customer for all assessments from the State.

Segment_Reporting

Segment Reporting	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]	'
Segment Reporting Disclosure [Text Block]	'
	14.    Segment Reporting
	The Company has two business division segments based on the products it delivers:
	Heavy Duty Diesel Systems division— The Heavy Duty Diesel Systems division designs and manufactures verified exhaust emissions control solutions.  This division offers a full range of products for the verified retrofit and non-retrofit OEM and aftermarket markets through its distributor/dealer network and direct sales. These products are used to reduce exhaust emissions created by on-road, off-road and stationary diesel and alternative fuel engines including propane and natural gas. The retrofit market in the U.S. is driven in particular by state and municipal environmental regulations and incentive funding for voluntary early compliance. The Heavy Duty Diesel Systems division derives significant revenues from retrofit with a portfolio of solutions verified by the California Air Resources Board and the United States Environmental Protection Agency.
	Catalyst division— The Catalyst division produces catalyst formulations to reduce emissions from gasoline, diesel and natural gas combustion engines that are offered for multiple markets and a wide range of applications.  A family of unique high-performance catalysts has been developed — with base-metals or low platinum group metal and zero platinum group metal content — to provide increased catalytic function and value for technology-driven automotive industry customers. The Catalyst division’s technical and manufacturing competence in the light duty vehicle market is aimed at meeting auto makers’ most stringent requirements, and it has supplied over eleven million parts to light duty vehicle customers since 1996. The Catalyst division also provides catalyst formulations for the Company’s Heavy Duty Diesel Systems division. Intersegment revenues are based on market prices.
	Corporate — Corporate includes cost for personnel, insurance and public company expenses such as legal, audit and taxes that are not allocated down to the operating divisions.
	Summarized financial information for the Company’s reportable segments is as follows (in thousands):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
			2013		2012		2013			2012
	Net sales
	Heavy Duty Diesel Systems	$	7,969	$	8,680	$	22,362		$	32,283
	Catalyst		7,199		6,659		19,951			19,194
	Corporate		-		-		-			-
	Eliminations (1)		-963		-939		-2,246			-3,354
	Total	$	14,205	$	14,400	$	40,067		$	48,123
	(Loss) income from operations
	Heavy Duty Diesel Systems	$	698	$	-272	$	280		$	-545
	Catalyst		597		261		850			-750
	Corporate		-1,202		-1,209		-4,278			-4,251
	Eliminations (1)		34		64		112			86
	Total	$	127	$	-1,156	$	-3,036		$	-5,460
	(1)     Elimination of Catalyst revenue and profit in ending inventory related to sales to Heavy Duty Diesel Systems.
	Net sales by geographic region based on the location of sales organization is as follows (in thousands):
						Nine Months Ended
		Three Months Ended				September 30,
		September 30,
			2013		2012			2013			2012
	United States	$	7,346	$	7,145		$	20,772		$	20,675
	Canada		5,794		5,461			15,477			16,966
	United Kingdom		249		500			747			5,919
	Sweden		816		1,294			3,071			4,563
	Total	$	14,205	$	14,400		$	40,067		$	48,123

Subsequent_Events

Subsequent Events	9 Months Ended
	Sep. 30, 2013
Subsequent Events [Abstract]	'
Subsequent Events [Text Block]	'
	15.    Subsequent Events
	On November 8, 2013, as a result of slower than anticipated progress in achieving sales objectives initially established for the Joint Venture, the Company and Pirelli agreed to voluntarily dissolve their Joint Venture in accordance with the Joint Venture Agreement. The Joint Venture is planned to cease operations on November 30, 2013, with dissolution expected to be completed as soon as practicable. The Company expects that dissolution will be finalized by December 31, 2013. The Company plans to resume its operations in Europe in a similar manner as conducted prior to the Joint Venture.

Accounting_Policies_by_Policy_

Accounting Policies, by Policy (Policies)	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Basis of Accounting, Policy [Policy Text Block]	'
	a.       Basis of Presentation
	The accompanying unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the SEC for interim financial reporting. In the opinion of management, all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation have been reflected. The results reported in these condensed consolidated financial statements should not necessarily be taken as indicative of results that may be expected for the entire year. Certain financial information that is normally included in annual financial statements prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”), but is not required for interim reporting purposes, has been condensed or omitted. The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in Clean Diesel Technologies, Inc.’s Annual Report on Form 10-K for the fiscal year ended December 31, 2012.
Consolidation, Policy [Policy Text Block]	'
	b.       Principles of Consolidation
	The condensed consolidated financial statements include the financial statements of the Company and its wholly owned subsidiaries. Intercompany transactions and balances have been eliminated in consolidation.
Use of Estimates, Policy [Policy Text Block]	'
	c.        Use of Estimates
	The preparation of financial statements in conformity with U.S. GAAP requires management of the Company to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. These estimates and assumptions are based on management’s best estimates and judgment. On an ongoing basis, the Company evaluates its estimates and assumptions, including those related to impairment of goodwill and long-lived assets, stock-based compensation, the fair value of financial instruments including warrants, allowance for doubtful accounts, inventory valuation, taxes and contingent and accrued liabilities. The Company bases its estimates on historical experience and various other factors, including the current economic environment, which it believes to be reasonable under the circumstances. Estimates and assumptions are adjusted when facts and circumstances dictate. Actual results may differ from these estimates under different assumptions and conditions. Management believes that the estimates are reasonable.
Concentration Risk, Credit Risk, Policy [Policy Text Block]	'
	d.       Concentration of Risk
	For the three and nine months ended September 30, 2013, one automotive original equipment manufacturer (“OEM”) customer within the Catalyst segment accounted for 43% and 42% of the Company’s revenues, respectively. This customer accounted for 33% and 29% of the Company’s revenues for the three and nine months ended September 30, 2012, respectively. No other customers accounted for 10% or more of the Company’s revenues during these periods.
	For the periods presented below, certain customers accounted for 10% or more of the Company’s accounts receivable balance as follows:
	Customer	September 30,		December 31,
		2013		2012
	A	34%		31%
	B	11%		6%
	C	─		12%
	Customer A is an automotive OEM and customers B and C are diesel system distributors.
	For the periods presented below, certain vendors accounted for 10% or more of the Company’s raw material purchases as follows:
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
	Vendor	2013		2012		2013	2012
	A	18%		16%		17%	11%
	B	16%		10%		13%	7%
	C	15%		11%		14%	12%
	D	11%		13%		12%	12%
	Vendors A and B are substrate suppliers, vendor C is a catalyst supplier and vendor D is a rare earth supplier.
Earnings Per Share, Policy [Policy Text Block]	'
	e.        Net Loss per Share
	Basic net loss per share is computed using the weighted average number of common shares outstanding during the period. Diluted net loss per share is computed using the weighted average number of common shares and dilutive potential common shares. Dilutive potential common shares include employee stock options and restricted share units (“RSUs”) and warrants and debt that are exercisable for or convertible into the Company’s common stock.
	Diluted net loss per share excludes certain dilutive potential common shares outstanding as their effect is anti-dilutive. Because the Company incurred net losses in the three and nine months ended September 30, 2013 and 2012, the effect of potentially dilutive securities has been excluded in the computation of net loss per share and net loss from continuing operations per share as their impact would be anti-dilutive.
	Potential common stock equivalents excluded consist of the following (in thousands):
			September 30,
			2013		2012
	Common stock options		718		756
	RSUs		324		168
	Warrants		1,781		968
	Convertible notes		250		250
	Total		3,073		2,142
	-
Fair Value of Financial Instruments, Policy [Policy Text Block]	'
	f.         Fair Value of Financial Instruments
	Accounting Standards Codification (“ASC”) Topic 825, “Financial Instruments,” requires disclosure of the fair value of financial instruments for which the determination of fair value is practicable. The fair values of the Company’s cash, trade accounts receivable, prepaid expenses and other current assets, accounts payable and accrued expenses and other current liabilities approximate carrying values due to the short maturity of these instruments. The fair value of borrowings under the line of credit approximates their carrying value due to the variable interest rates. The fair value of shareholder notes payable, calculated using level 3 inputs, including a Black-Scholes option-pricing model to value the debt’s conversion factor and a net present value model,was $7.5 million at September 30, 2013.
Reclassification, Policy [Policy Text Block]	'
	g.       Reclassifications
	Certain prior-period amounts have been reclassified to conform to the current period presentation. These changes had no impact on the previously reported consolidated results of operations or stockholders' equity.
New Accounting Pronouncements, Policy [Policy Text Block]	'
	h.       Recently Adopted Accounting Guidance
	In February 2013, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update ASU No. 2013-02, "Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income," which requires disclosure of significant amounts reclassified out of accumulated other comprehensive income by component and their corresponding effect on the respective line items of net income. This guidance is effective for reporting periods beginning after December 15, 2012.  Adoption of this guidance on January 1, 2013 did nothave a material impact on the Company’s consolidated financial statements or financial statement disclosures.
Recently Issued Accounting Guidance Policy [Policy Text Block]	'
	i.         Recently Issued Accounting Guidance
	In March 2013, the FASB issued ASU No. 2013-05, "Parent's Accounting for the Cumulative Translation Adjustment upon Derecognition of Certain Subsidiaries or Groups of Assets within a Foreign Entity or of an Investment in a Foreign Entity," ("ASU 2013-05"). The objective of ASU 2013-05 is to resolve the diversity in practice regarding the release into net income of the cumulative translation adjustment upon derecognition of a subsidiary or group of assets within a foreign entity. ASU 2013-05 is effective for reporting periods beginning after December 15, 2013 and is not expected to have a material impact on the Company’s consolidated financial statements or financial statement disclosures.
	In June 2013, the FASB ratified Emerging Issues Task Force (EITF) Issue 13-C, “Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists” which concludes an unrecognized tax benefit should be presented as a reduction of a deferred tax asset when settlement in this manner is available under the tax law. The Company will adopt this amendment in the first quarter of 2014, and does not expect adoption of this standard to have a material impact on its consolidated financial statements or financial statement disclosures.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2013
Summary of Significant Accounting Policies (Tables) [Line Items]	'
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]	'
			September 30,
			2013		2012
	Common stock options		718		756
	RSUs		324		168
	Warrants		1,781		968
	Convertible notes		250		250
	Total		3,073		2,142
Credit Concentration Risk [Member]	'
Summary of Significant Accounting Policies (Tables) [Line Items]	'
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]	'
	Customer	September 30,		December 31,
		2013		2012
	A	34%		31%
	B	11%		6%
	C	─		12%
Supplier Concentration Risk [Member]	'
Summary of Significant Accounting Policies (Tables) [Line Items]	'
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]	'
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
	Vendor	2013		2012		2013	2012
	A	18%		16%		17%	11%
	B	16%		10%		13%	7%
	C	15%		11%		14%	12%
	D	11%		13%		12%	12%

Inventories_Tables

Inventories (Tables)	9 Months Ended
	Sep. 30, 2013
Inventory Disclosure [Abstract]	'
Schedule of Inventory, Current [Table Text Block]	'
			September 30,		December 31,
			2013		2012
	Raw materials	$	3,330	$	4,340
	Work in progress		1,518		1,815
	Finished goods		1,653		2,542
	Inventories	$	6,501	$	8,697

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Schedule of Goodwill [Table Text Block]	'
	Balance at December 31, 2012	$	6,087
	Effect of translation adjustment		-99
	Balance at September 30, 2013	$	5,988
Schedule of Finite-Lived Intangible Assets [Table Text Block]	'
		Useful Life			September 30,		December 31,
		in Years			2013		2012
	Trade name	15 – 20		$	1,379	$	1,404
	Patents and know-how	5 – 12			4,946		5,072
	Customer relationships	4 – 8			1,250		1,269
	Intangible Assets, Gross				7,575		7,745
	Less accumulated amortization				-3,815		-3,376
	Intangible Assets, Net			$	3,760	$	4,369
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	'
	Years ending December 31:
	Remainder of 2013	$	174
	2014		694
	2015		690
	2016		538
	2017		527

Accrued_Expenses_and_Other_Cur1

Accrued Expenses and Other Current Liabilities (Tables)	9 Months Ended
	Sep. 30, 2013
Accrued Expenses And Other Current Liabilities [Abstract]	'
Schedule of Accrued Expenses and Other Current Liabilities [Table Text Block]	'
			September 30,		December 31,
			2013		2012
	Accrued salaries and benefits	$	1,225	$	1,347
	Warrant liability		910		10
	Liability for consigned precious metals		888		694
	Accrued warranty		569		665
	Accrued severance and other charges		106		490
	Sales tax payable		210		216
	Other		1,006		1,092
	Accrued expenses and other current liabilities	$	4,914	$	4,514

Severance_and_Other_Charges_Ta

Severance and Other Charges (Tables)	9 Months Ended
	Sep. 30, 2013
Restructuring and Related Activities [Abstract]	'
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	'
			Severance		Lease Exit Costs		Total
	Accrual at December 31, 2012	$	306	$	184	$	490
	Additional Expense Incurred		62		-		62
	Payments and other settlements in 2013		-339		-103		-442
	Translation adjustment		-4		-		-4
	Accrual at September 30, 2013	$	25	$	81	$	106

Accrued_Warranty_Tables

Accrued Warranty (Tables)	9 Months Ended
	Sep. 30, 2013
Product Warranties Disclosures [Abstract]	'
Schedule of Product Warranty Liability [Table Text Block]	'
			Nine Months Ended
			September 30,
			2013		2012
	Balance at beginning of period	$	665	$	645
	Accrued warranty expense		529		588
	Warranty claims paid		-600		-658
	Translation adjustment		-25		21
	Balance at end of period	$	569	$	596

Debt_Tables

Debt (Tables)	9 Months Ended
	Sep. 30, 2013
Debt Disclosure [Abstract]	'
Schedule of Debt [Table Text Block]	'
	September 30,	December 31,
	2013	2012
	Line of credit with FGI	$	4,448	$	5,476
	8% shareholder note due 2015		1,576		1,638
	8% subordinated convertible shareholder notes due 2016		3,000		3,000
	8% shareholder note due 2015		2,957		2,940
	Debt, Total		11,981		13,054
	Less current portion		-7,448		-5,576
	Long-term debt, net of current portion	$	4,533	$	7,478

Warrants_Tables

Warrants (Tables)	9 Months Ended
	Sep. 30, 2013
Warrants Disclosures [Abstract]	'
Schedule of Share-based Compensation, Warrants Activity [Table Text Block]	'
	Shares	Weighted	Range of
		Average	Exercise Prices
		Exercise
		Price
	Outstanding at December 31, 2012	923,090		$	7.77		$2.09 - $48.90
	Warrants issued	993,600		$	1.25		$1.25
	Warrants expired/forfeited	-7,577		$	48.9		$48.90
	Warrants cancelled	-128,333		$	7.92		$7.92
	Outstanding at September 30, 2013	1,780,780		$	3.95		$1.25-$10.40
	Warrants exercisable at September 30, 2013	1,726,180		$	4.02		$1.25-$10.40
Schedule of Share-based Payment Award, Warrats, Valuation Assumptions [Table Text Block]	'
	Expected volatility	80.50%
	Risk-free interest rate	1.64%
	Dividend yield	─
	Expected life in years	5
	Grant Date Fair value	$0.78
	Expected volatility	77.00%
	Risk-free interest rate	1.46%
	Dividend yield	─
	Price of CDTi common stock	$1.42
	Fair value	$0.95
Schedule of Reconciliation, Warrants Liability [Table Text Block]	'
	Nine Months Ended
	September30,
			2013			2012
	Balance at beginning of period	$	10		$	100
	Issuance of common stock warrants		749			─
	Re-measurement of common stock warrants		151			59
	Balance at end of period	$	910		$	159

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]	'
	Weighted
					Average
					Exercise	Weighted Average Remaining Contractual Term
		Options			Price	(in years)	Aggregate Intrinsic Value
	Outstanding at December 31, 2012	785,986		$	$7.81
	Granted	─
	Forfeited /expired	-68,110		$	$10.63
	Outstanding at September 30, 2013	717,876		$	$7.54	7.8	─
	Exercisable at September 30, 2013	462,239		$	$10.11	7.44	─
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	'
				2012
	Expected volatility			84.40%
	Risk-free interest rate			1.10%
	Dividend yield			─
	Expected life in years			5.96
	Weighted average grant date fair value		$	2.07
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]	'
		Shares			Weighted	Aggregate
					Average	Intrinsic Value
					Grant Date Fair Value
	Non-vested share units at December 31, 2012	167,165		$	3.08	─
	Granted	254,411		$	2.17	─
	Vested	-63,375		$	3.38	─
	Forfeited	-34,402		$	2.48	─
	Non-vested share units at September 30, 2013	323,799		$	2.36	─

Segment_Reporting_Tables

Segment Reporting (Tables)	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]	'
Schedule of Segment Reporting Information, by Segment [Table Text Block]	'
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
			2013		2012		2013			2012
	Net sales
	Heavy Duty Diesel Systems	$	7,969	$	8,680	$	22,362		$	32,283
	Catalyst		7,199		6,659		19,951			19,194
	Corporate		-		-		-			-
	Eliminations (1)		-963		-939		-2,246			-3,354
	Total	$	14,205	$	14,400	$	40,067		$	48,123
	(Loss) income from operations
	Heavy Duty Diesel Systems	$	698	$	-272	$	280		$	-545
	Catalyst		597		261		850			-750
	Corporate		-1,202		-1,209		-4,278			-4,251
	Eliminations (1)		34		64		112			86
	Total	$	127	$	-1,156	$	-3,036		$	-5,460
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]	'
						Nine Months Ended
		Three Months Ended				September 30,
		September 30,
			2013		2012			2013			2012
	United States	$	7,346	$	7,145		$	20,772		$	20,675
	Canada		5,794		5,461			15,477			16,966
	United Kingdom		249		500			747			5,919
	Sweden		816		1,294			3,071			4,563
	Total	$	14,205	$	14,400		$	40,067		$	48,123

Organization_Details

Organization (Details) (USD $)

0 Months Ended

1 Months Ended

9 Months Ended

0 Months Ended

1 Months Ended

0 Months Ended

1 Months Ended

0 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

Jul. 03, 2013

Jun. 28, 2013

Sep. 30, 2013

Jun. 30, 2013

Jan. 30, 2013

Dec. 31, 2012

Sep. 30, 2012

Dec. 31, 2011

Jul. 03, 2013

Jul. 03, 2013

Jan. 30, 2013

Jan. 30, 2013

Jan. 30, 2013

Jan. 13, 2013

Jan. 30, 2013

Jan. 13, 2013

Sep. 30, 2013

Jul. 03, 2013

Jul. 31, 2013

Jun. 28, 2013

Jul. 03, 2013

Jul. 03, 2013

Jun. 28, 2013

Jun. 28, 2013

Jul. 03, 2013

Oct. 15, 2010

Oct. 07, 2011

Sep. 30, 2013

Oct. 07, 2011

Sep. 30, 2013

Oct. 07, 2011

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Jul. 03, 2013

Jan. 30, 2013

Sep. 30, 2013

Feb. 14, 2011

Subsequent Event [Member]

Subsequent Event [Member]

Restatement Adjustment [Member]

Scenario, Previously Reported [Member]

Scenario, Previously Reported [Member]

Scenario, Previously Reported [Member]

Scenario, Previously Reported [Member]

Scenario, Previously Reported [Member]

Private Placement [Member]

Private Placement [Member]

Private Placement [Member]

Private Placement [Member]

Common Stock [Member]

Common Stock [Member]

Common Stock [Member]

Warrant [Member]

Warrant [Member]

Warrant [Member]

Purchase Agreement With LPC [Member]

Purchase Agreement With LPC [Member]

Purchase Agreement With LPC [Member]

Purchase Agreement With LPC [Member]

Purchase Agreement With LPC [Member]

Purchase Agreement With LPC [Member]

Purchase Agreement With LPC [Member]

Shelf Registration [Member]

Shelf Registration [Member]

Six Percent Shareholder Note Due 2013 [Member]

Line Of Credit With FGI [Member]

Line Of Credit With FGI [Member]

Shelf Registration [Member]

Six Percent Shareholder Note Due 2013 [Member]

Six Percent Shareholder Note Due 2013 [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Warrant [Member]

Kanis S.A [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Six Percent Shareholder Note Due 2013 [Member]

Six Percent Shareholder Note Due 2013 [Member]

Six Percent Shareholder Note Due 2013 [Member]

Six Percent Shareholder Note Due 2013 [Member]

Organization (Details) [Line Items]

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($179,222,000)

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($174,621,000)

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Line of Credit Facility, Maximum Borrowing Capacity (in Dollars)

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7,500,000

7,500,000

Line of Credit Facility, Amount Outstanding

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4,400,000

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Line of Credit Facility, Current Borrowing Capacity

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'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3,100,000

'

Stock Purchase Agreement Term

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'30 months

'

'

'

'

'

'

'

'

'

'

Stock Purchase Agreement Authorized Amount (in Dollars)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10,000,000

'

'

'

'

'

'

'

'

'

'

Sale Of Stock Sale Per Transaction (in Dollars)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

500,000

500,000

1,500,000

1,500,000

'

'

'

'

'

'

Stock Purchase Agreement Number of Shares Registered (in Shares)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,823,577

1,702,836

'

'

'

'

'

'

'

'

'

'

Stock Purchase Agreement Exchange Cap (in Shares)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,434,994

1,434,994

'

'

'

'

'

'

'

'

'

'

Stock Purchase Agreement Exchange Rate Cap

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

19.99%

19.99%

'

'

'

'

'

'

'

'

'

'

Stock Purchase Agreement Signing Price Description

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'$2.76 plus $0.254

'2.76 plus $0.254

'

'

'

'

'

'

'

'

'

'

Stock Purchase Agreement Signing Price Amount (in Dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$3.01

$3.01

'

'

'

'

'

'

'

'

'

'

Share Price (in Dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$1.84

'

'

'

'

'

'

'

$1.41

'

'

'

'

'

'

$1.25

'

'

'

Assumed Proceeds From Sale Of Common Stock

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2,400,000

'

'

'

'

'

Assumed Proceeds From Sale Of Common Stock Limited To Exchange Cap

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2,000,000

'

'

'

'

'

'

'

'

'

'

Shelf Registration Authorized Amount (in Dollars)

'

'

50,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shelf Registartion Public Float Threshold (in Dollars)

'

'

75,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

75,000,000

'

'

'

'

Shelf Registration Units Sold (in Shares)

'

'

'

'

'

'

'

'

'

1,730,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shelf Registration Units Sold Share Component Per Unit (in Shares)

'

'

'

'

'

'

'

'

1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in Shares)

'

'

'

'

'

'

'

'

1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Share)

'

'

$1.25

'

'

'

'

'

$1.25

'

'

'

'

'

'

'

$1.25

'

'

'

'

'

'

'

$1.25

$7.92

'

'

'

'

'

'

'

'

'

'

'

'

Proceeds From Issuance Of Common Stock And Warrants

'

'

'

'

'

'

'

'

1,700,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Private Placement Commitment Amount (in Dollars)

'

100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock Issued During Period, Shares, New Issues (in Shares)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

54,347

54,347

'

188,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Interest Rate, Stated Percentage

'

'

'

'

8.00%

'

'

'

'

'

8.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

6.00%

'

'

Debt Instrument, Maturity Date

'

'

'

'

'

'

'

'

'

'

30-Jun-15

30-Jun-13

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Unamortized Premium (in Dollars)

'

'

'

100,000

'

'

'

'

'

'

250,000

'

100,000

100,000

200,000

200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Proceeds from Issuance of Private Placement

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

235,000

235,000

100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)

'

'

94,000

'

'

'

'

'

'

'

'

'

'

'

'

'

94,000

'

'

'

94,000

'

'

'

865,000

379,678

'

'

'

'

'

'

'

'

'

'

'

'

Cash

'

'

4,558,000

'

'

6,878,000

7,649,000

3,471,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Proceeds of Warrants and Common Stock for Underwriter Commission

$1,700,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
OEM Customer [Member]	'	'	'	'
Summary of Significant Accounting Policies (Details) [Line Items]	'	'	'	'
Concentration Risk, Percentage	43.00%	33.00%	42.00%	29.00%
Customer Concentration Risk [Member] | Sales [Member]	'	'	'	'
Summary of Significant Accounting Policies (Details) [Line Items]	'	'	'	'
Concentration Risk, Percentage	'	'	10.00%	'
Customer Concentration Risk [Member] | Accounts Receivable [Member]	'	'	'	'
Summary of Significant Accounting Policies (Details) [Line Items]	'	'	'	'
Concentration Risk, Percentage	'	'	10.00%	'
Credit Concentration Risk [Member]	'	'	'	'
Summary of Significant Accounting Policies (Details) [Line Items]	'	'	'	'
Concentration Risk, Percentage	'	'	10.00%	'
Fair Value, Inputs, Level 3 [Member]	'	'	'	'
Summary of Significant Accounting Policies (Details) [Line Items]	'	'	'	'
Long-term Debt, Fair Value (in Dollars)	7.5	'	7.5	'

Summary_of_Significant_Account3

Summary of Significant Accounting Policies (Details) - Concentration of risk accounts receivable (Accounts Receivable [Member])	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Customer A [Member]	'	'
Concentration Risk [Line Items]	'	'
Accounts Receivable, Concentraton of Risk, Percentage	34.00%	31.00%
Customer B [Member]	'	'
Concentration Risk [Line Items]	'	'
Accounts Receivable, Concentraton of Risk, Percentage	11.00%	6.00%
Customer C [Member]	'	'
Concentration Risk [Line Items]	'	'
Accounts Receivable, Concentraton of Risk, Percentage	'	12.00%

Summary_of_Significant_Account4

Summary of Significant Accounting Policies (Details) - Concentration of risk raw materials purchases	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Vendor A [Member]	'	'	'	'
Concentration Risk [Line Items]	'	'	'	'
Purchase Of Raw Material, Concentration of Risk, Percentage	18.00%	16.00%	17.00%	11.00%
Vendor B [Member]	'	'	'	'
Concentration Risk [Line Items]	'	'	'	'
Purchase Of Raw Material, Concentration of Risk, Percentage	16.00%	10.00%	13.00%	7.00%
Vendor C [Member]	'	'	'	'
Concentration Risk [Line Items]	'	'	'	'
Purchase Of Raw Material, Concentration of Risk, Percentage	15.00%	11.00%	14.00%	12.00%
Vendor D [Member]	'	'	'	'
Concentration Risk [Line Items]	'	'	'	'
Purchase Of Raw Material, Concentration of Risk, Percentage	11.00%	13.00%	12.00%	12.00%

Summary_of_Significant_Account5

Summary of Significant Accounting Policies (Details) - Potential common stock equivalents	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	3,073	2,142
Equity Option [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	718	756
Restricted Stock Units (RSUs) [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	324	168
Warrant [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	1,781	968
Convertible Notes [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	250	250

Inventories_Details_Componets_

Inventories (Details) - Componets of Inventory (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Componets of Inventory [Abstract]	'	'
Raw materials	$3,330	$4,340
Work in progress	1,518	1,815
Finished goods	1,653	2,542
Inventories	$6,501	$8,697

Goodwill_and_Intangible_Assets2

Goodwill and Intangible Assets (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Goodwill and Intangible Assets Disclosure [Abstract]	'	'
Amortization of Intangible Assets	$0.20	$0.50

Goodwill_and_Intangible_Assets3

Goodwill and Intangible Assets (Details) - Changes in carrying amount of goodwill (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013
Changes in carrying amount of goodwill [Abstract]	'
Balance at December 31, 2012	$6,087
Effect of translation adjustment	-99
Balance at September 30, 2013	$5,988

Goodwill_and_Intangible_Assets4

Goodwill and Intangible Assets (Details) - Components of Intangible assets (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Finite-Lived Intangible Assets [Line Items]	'	'
Intangible Assets, Gross	$7,575	$7,745
Less accumulated amortization	-3,815	-3,376
Intangible Assets, Net	3,760	4,369
Trade Names [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Intangible Assets, Gross	1,379	1,404
Patents [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Intangible Assets, Gross	4,946	5,072
Customer Relationships [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Intangible Assets, Gross	$1,250	$1,269

Goodwill_and_Intangible_Assets5

Goodwill and Intangible Assets (Details) - Components of Intangible assets (Parentheticals)	9 Months Ended
	Sep. 30, 2013
Minimum [Member] | Trade Names [Member]	'
Finite-Lived Intangible Assets [Line Items]	'
Intangible Assets, Useful life	'15 years
Minimum [Member] | Patents [Member]	'
Finite-Lived Intangible Assets [Line Items]	'
Intangible Assets, Useful life	'5 years
Minimum [Member] | Customer Relationships [Member]	'
Finite-Lived Intangible Assets [Line Items]	'
Intangible Assets, Useful life	'4 years
Maximum [Member] | Trade Names [Member]	'
Finite-Lived Intangible Assets [Line Items]	'
Intangible Assets, Useful life	'20 years
Maximum [Member] | Patents [Member]	'
Finite-Lived Intangible Assets [Line Items]	'
Intangible Assets, Useful life	'12 years
Maximum [Member] | Customer Relationships [Member]	'
Finite-Lived Intangible Assets [Line Items]	'
Intangible Assets, Useful life	'8 years

Goodwill_and_Intangible_Assets6

Goodwill and Intangible Assets (Details) - Estimated amortization expense for existing intangible assets (USD $)	Dec. 31, 2012
In Thousands, unless otherwise specified
Estimated amortization expense for existing intangible assets [Abstract]	'
Remainder of 2013	$174
2014	694
2015	690
2016	538
2017	$527

Accrued_Expenses_and_Other_Cur2

Accrued Expenses and Other Current Liabilities (Details) - Components of Accrued expenses and other current liabilities (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Components of Accrued expenses and other current liabilities [Abstract]	'	'	'	'
Accrued salaries and benefits	$1,225	$1,347	'	'
Warrant liability	910	10	'	'
Liability for consigned precious metals	888	694	'	'
Accrued warranty	569	665	596	645
Accrued severance and other charges	106	490	'	'
Sales tax payable	210	216	'	'
Other	1,006	1,092	'	'
Accrued expenses and other current liabilities	$4,914	$4,514	'	'

Severance_and_Other_Charges_De

Severance and Other Charges (Details)	12 Months Ended	9 Months Ended
	Dec. 31, 2012	Sep. 30, 2013
	North America Europe United Kingdom And Asia [Member]	United Kingdom [Member]
Severance and Other Charges (Details) [Line Items]	'	'
Number of Employees Terminated	41	2

Severance_and_Other_Charges_De1

Severance and Other Charges (Details) - Severance and other charges (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2013
Severance and Other Charges (Details) - Severance and other charges [Line Items]	'
Accrual at December 31, 2012	$490
Additional Expense Incurred	62
Payments and other settlements in 2013	-442
Translation adjustment	-4
Accrual at September 30, 2013	106
Employee Severance [Member]	'
Severance and Other Charges (Details) - Severance and other charges [Line Items]	'
Accrual at December 31, 2012	306
Additional Expense Incurred	62
Payments and other settlements in 2013	-339
Translation adjustment	-4
Accrual at September 30, 2013	25
Lease Exist Costs [Member]	'
Severance and Other Charges (Details) - Severance and other charges [Line Items]	'
Accrual at December 31, 2012	184
Additional Expense Incurred	'
Payments and other settlements in 2013	-103
Translation adjustment	'
Accrual at September 30, 2013	$81

Accrued_Warranty_Details_Accru

Accrued Warranty (Details) - Accrued Warranty (Tables) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Accrued Warranty (Tables) [Abstract]	'	'
Balance at beginning of period	$665	$645
Accrued warranty expense	529	588
Warranty claims paid	-600	-658
Translation adjustment	-25	21
Balance at end of period	$569	$596

Debt_Details

Debt (Details) (USD $)

0 Months Ended

3 Months Ended

0 Months Ended

0 Months Ended

0 Months Ended

0 Months Ended

3 Months Ended

0 Months Ended

3 Months Ended

Apr. 08, 2011

Sep. 30, 2013

Jun. 30, 2013

Jan. 30, 2013

Jul. 03, 2013

Jul. 03, 2013

Jul. 03, 2013

Jul. 03, 2013

Aug. 15, 2012

Jan. 30, 2013

Jan. 13, 2013

Jan. 30, 2013

Jan. 13, 2013

Jun. 30, 2013

Jan. 30, 2013

Aug. 15, 2012

Feb. 16, 2012

Sep. 30, 2013

Jun. 30, 2013

Dec. 31, 2012

Dec. 30, 2010

Jan. 30, 2013

Jul. 27, 2012

Feb. 16, 2012

Apr. 08, 2011

Sep. 30, 2013

Dec. 31, 2012

6-May-11

Sep. 30, 2013

Dec. 31, 2012

Jul. 27, 2012

Aug. 15, 2012

Sep. 30, 2013

Feb. 14, 2011

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Scenario, Previously Reported [Member]

Scenario, Previously Reported [Member]

Scenario, Previously Reported [Member]

Scenario, Previously Reported [Member]

Scenario, Previously Reported [Member]

Scenario, Adjustment [Member]

Scenario, Adjustment [Member]

Scenario, Adjustment [Member]

Common Stock [Member]

Shareholder Note Due 2015A [Member]

Shareholder Note Due 2015A [Member]

Shareholder Note Due 2015A [Member]

Shareholder Note Due 2015A [Member]

Six Percent Shareholder Note Due 2013 [Member]

Shareholder Note Payable Due 2016 [Member]

Shareholder Note Payable Due 2016 [Member]

Shareholder Note Payable Due 2016 [Member]

Shareholder Note Payable Due 2016 [Member]

Shareholder Note Payable Due 2016 [Member]

Shareholder Note Payable Due 2016 [Member]

Shareholder Note Due 2015B [Member]

Shareholder Note Due 2015B [Member]

Shareholder Note Due 2015B [Member]

Line Of Credit With FGI [Member]

Line Of Credit With FGI [Member]

Line Of Credit With FGI [Member]

Common Stock [Member]

Common Stock [Member]

Premium And Accrued Interest Payment [Member]

Original Loan Repayment [Member]

Line Of Credit With FGI [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Shareholder Note Due 2015A [Member]

Shareholder Note Due 2015A [Member]

Line Of Credit With FGI [Member]

Shareholder Note Payable Due 2016 [Member]

Premium And Accrued Interest Payment [Member]

Original Loan Repayment [Member]

Shareholder Note Due 2015A [Member]

Shareholder Note Due 2015A [Member]

Six Percent Shareholder Note Due 2013 [Member]

Six Percent Shareholder Note Due 2013 [Member]

Six Percent Shareholder Note Due 2013 [Member]

Six Percent Shareholder Note Due 2013 [Member]

Shareholder Note Due 2015A [Member]

Debt (Details) [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Facility, Maximum Borrowing Capacity (in Dollars)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$7,500,000

$7,500,000

Line of Credit Facility, Expiration Date

'

'

'

'

'

'

'

'

14-Feb-13

'

'

'

'

'

'

15-Aug-15

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line Of Credit Facility Optional Additional Term

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'1 year

'

'

Line Of Credit Facility Threshold Percentage Of Purchase Receivables Elected By Issuer

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

80.00%

'

'

Line Of Credit Facility Purchased Receivable Reserved By Borrower

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

20.00%

'

'

Line Of Credit Facility Advance Amount In Percentage Of Purchased Accounts Receivable Value

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

80.00%

'

'

Line Of Credit Facility Maximum Borrowing Capacity Against Inventory Collateral (in Dollars)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,500,000

'

Line Of Credit Facility Inventory Collateral Sublimit Determinant Percentage Of Aggregate Purchase Price For Purchased Receivable

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

50.00%

'

Line Of Credit Facility Interest Rate Determinant Threshold Percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

6.50%

'

Debt Instrument, Basis Spread on Variable Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2.50%

'

Line Of Credit Facility Periodic Collateral Fees Percentage Of Eligible Receivables

'

0.30%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line Of Credit Facility Periodic Collateral Fees Percentage Of Borrowing Against Inventory Collateral

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.38%

'

Line Of Credit Facility Amount Outstanding Stand by Fees Determination Threshold (in Dollars)

'

2,400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line Of Credit Facility Standby Fees Percentage Of Determinant Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.44%

'

Line Of Credit Facility Standby Fees Determinant Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

80.00%

'

Line Of Credit Facility Termination Fee Percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2.00%

'

Line Of Credit Facility Termination Fee Waiver Notification Period

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'10 days

'

Line Of Credit Facility Notification Period For Termination Fee Waiver Threshold Reserve Percentage For Accounts

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

40.00%

'

Line Of Credit Facility Termination Fee Waiver Threshold Consecutive Days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'30 days

'

Pledged Assets Accounts Receivable Pledged As Collateral Gross Value (in Dollars)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3,900,000

'

Borrowings Outstanding Amount Against Pledged Accounts Receivable (in Dollars)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2,900,000

'

Borrowings Outstanding Amount Against Pleged Inventory (in Dollars)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,500,000

'

Debt Instrument, Interest Rate, Stated Percentage

'

'

'

8.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

8.00%

'

8.00%

6.00%

6.00%

'

'

'

8.00%

8.00%

'

8.00%

8.00%

'

'

'

'

Debt Instrument, Face Amount (in Dollars)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,500,000

'

'

'

'

'

'

3,000,000

'

'

3,000,000

'

'

'

Debt Instrument, Unamortized Premium (in Dollars)

'

'

100,000

'

'

'

'

'

'

100,000

100,000

200,000

200,000

100,000

250,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest Payable (in Dollars)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$135,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock Issued During Period Shares Issued For Payment Of Premium And Interest (in Shares)

'

'

'

'

'

'

188,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)

'

94,000

'

'

94,000

'

'

'

'

'

'

'

'

'

'

'

5,000

'

'

'

'

'

'

'

'

'

'

'

'

'

45,000

'

'

'

Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)

'

$1.25

'

'

'

$25,000

$1.25

$10.40

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$3.80

'

'

'

'

'

'

$2.09

'

'

'

Debt Instrument Maturity Period

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'5 years

'

'

'

'

'

'

'

'

Debt Instrument Maturity Acceleration Notice Period To Be Served By Lender

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'30 days

'

'

'

'

'

'

'

'

Debt Instrument, Redemption Price, Percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100.00%

'

'

'

'

'

'

'

'

Debt Instrument, Convertible, Conversion Price (in Dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$4

'

$7.04

'

'

'

'

'

'

'

'

'

Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger

120.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Convertible, Number of Equity Instruments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

250,000

'

369,853

'

'

'

'

'

'

'

'

'

Debt Instrument Convertible Threshold Notice Period

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'75 days

'

'

'

'

'

'

'

'

'

'

'

Class Of Warrant Or Right Expiry Description

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'the earlier of (x)August16, 2017 and (y)that date that is 30 days after the Company gives notice to the warrant holder that the market value of one share of its common stock has exceeded 130% of the exercise price of the warrant for 10 consecutive days on or after August16, 2014.

'

'

'

'

'

'

'

'

'

'

Debt_Details_Longterm_debt

Debt (Details) - Long-term debt (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Debt (Details) - Long-term debt [Line Items]	'	'
Line of credit with FGI	$4,448	$5,476
Debt, Total	11,981	13,054
Less current portion	-7,448	-5,576
Long-term debt, net of current portion	4,533	7,478
Shareholder Note Due 2015A [Member]	'	'
Debt (Details) - Long-term debt [Line Items]	'	'
8% shareholder note due 2015	1,576	1,638
Shareholder Note Payable Due 2016 [Member]	'	'
Debt (Details) - Long-term debt [Line Items]	'	'
8% subordinated convertible shareholder notes due 2016	3,000	3,000
Shareholder Note Due 2015B [Member]	'	'
Debt (Details) - Long-term debt [Line Items]	'	'
8% shareholder note due 2015	$2,957	$2,940

Debt_Details_Longterm_debt_Par

Debt (Details) - Long-term debt (Parentheticals)	Jan. 30, 2013	Sep. 30, 2013	Dec. 31, 2012	Dec. 30, 2010	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013	Dec. 31, 2012
		Shareholder Note Due 2015A [Member]	Shareholder Note Due 2015A [Member]	Shareholder Note Due 2015A [Member]	Shareholder Note Payable Due 2016 [Member]	Shareholder Note Payable Due 2016 [Member]	Shareholder Note Due 2015B [Member]	Shareholder Note Due 2015B [Member]
Debt (Details) - Long-term debt (Parentheticals) [Line Items]	'	'	'	'	'	'	'	'
Interest Rate, Stated Percentage	8.00%	8.00%	8.00%	6.00%	8.00%	8.00%	8.00%	8.00%
Maturity Year	'	'2015	'2015	'	'2016	'2016	'2015	'2015

Stockholders_Equity_Details

Stockholders' Equity (Details) (USD $)

1 Months Ended

9 Months Ended

0 Months Ended

1 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

6 Months Ended

Jun. 28, 2013

Sep. 30, 2013

Dec. 31, 2012

Jul. 03, 2013

Jul. 31, 2013

Jun. 28, 2013

Oct. 07, 2011

Sep. 30, 2013

Oct. 07, 2011

Sep. 30, 2013

Oct. 07, 2011

Sep. 30, 2013

Jul. 03, 2013

Jun. 28, 2013

Jun. 28, 2013

Jul. 03, 2013

Jun. 28, 2013

Sep. 30, 2013

Jul. 03, 2013

Sep. 30, 2013

Jul. 03, 2013

Jun. 30, 2013

Private Placement [Member]

Private Placement [Member]

Private Placement [Member]

Purchase Agreement With LPC [Member]

Purchase Agreement With LPC [Member]

Purchase Agreement With LPC [Member]

Purchase Agreement With LPC [Member]

Purchase Agreement With LPC [Member]

Purchase Agreement With LPC [Member]

Underwriting Agreement [Member]

Underwriting Agreement [Member]

Underwriting Agreement [Member]

Underwriting Agreement [Member]

Underwriting Agreement [Member]

Underwriting Agreement [Member]

Common Stock [Member]

Common Stock [Member]

Underwriting Agreement [Member]

Premium and Interest [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Common Stock [Member]

Offering [Member]

Overallotment Coverage [Member]

Overallotment Coverage [Member]

Stockholders' Equity (Details) [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Capital Stock Authorized

'

24,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Common Stock, Shares Authorized

'

24,000,000

24,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Common Stock, Par or Stated Value Per Share (in Dollars per share)

'

$0.01

$0.01

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred Stock, Shares Authorized

'

100,000

100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred Stock, Par or Stated Value Per Share (in Dollars per share)

'

$0.01

$0.01

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Private Placement Commitment Amount (in Dollars)

$100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share Price (in Dollars per share)

'

'

'

'

'

$1.84

'

$1.41

'

'

'

'

'

'

'

$1.25

'

'

'

'

'

'

Stock Issued During Period, Shares, New Issues

'

'

'

54,347

54,347

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Premium and Interest Due, Amount (in Dollars)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

235,000

Debt Conversion, Converted Instrument, Shares Issued

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

188,000

'

'

Class of Warrant or Right, Number of Securities Called by Warrants or Rights

'

94,000

'

'

'

'

'

'

'

'

'

'

'

800,000

120,000

865,000

'

'

'

'

65,000

'

Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Share)

'

$1.25

'

'

'

'

'

'

'

'

'

'

'

'

'

$0.01

'

'

'

'

'

'

Class Of Warrant Or Rights Period For Which Warrants Or Rights Exercisable

'

'5 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'5 years

'

'

'

'

'

'

Shelf Registration Authorized Amount (in Dollars)

'

50,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shelf Registartion Public Float Threshold (in Dollars)

'

75,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

UnderwritingAgreementSharesAuthorized

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,600,000

'

'

'

'

'

Underwriting Agreement Period Granted For Additional Stock Purchase

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'30 days

'

'

'

'

'

Underwriting Agreement Additional Shares Offering

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

240,000

'

'

'

'

'

Sale of Stock, Number of Shares Issued in Transaction

'

'

'

'

'

'

'

'

'

'

'

'

1,730,000

'

'

'

'

'

130,000

'

'

'

Sale of Stock, Price Per Share (in Dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

$1.25

'

'

'

'

'

'

'

'

'

Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)

'

$1.25

'

'

'

'

'

'

'

'

'

'

'

'

'

$0.01

'

'

'

'

'

'

Proceeds from Issuance or Sale of Equity (in Dollars)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,700,000

'

'

'

'

Warrants issued

'

993,600

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

34,600

'

'

'

'

Warrants Issued In Period Weighted Average Exercise Price (in Dollars per share)

'

$1.25

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$1.25

'

'

'

'

Class O fWarrant Or Rights, Exercisable Period

'

'December 25, 2013 through June 28, 2018

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Warrants Not Settleable in Cash, Fair Value Disclosure (in Dollars)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

'

'

'

Stock Purchase Agreement Authorized Amount (in Dollars)

'

'

'

'

'

'

'

10,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock Purchase Agreement Term

'

'

'

'

'

'

'

'30 months

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock Purchase Agreement Number of Shares Registered

'

'

'

'

'

'

1,823,577

1,702,836

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock Issued During Period Shares Issued As Commitment Fees

'

'

'

'

'

'

40,247

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock Issued During Period Shares Issued As Additional Commitment Fees

'

'

'

'

'

'

80,494

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock Purchase Agreement Remaining Number of Shares Authorized to be Sold

'

'

'

'

'

'

1,702,836

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Sale Of Stock Sale Per Transaction (in Dollars)

'

'

'

'

'

'

'

'

$500,000

$500,000

$1,500,000

$1,500,000

'

'

'

'

'

'

'

'

'

'

Stock Purchase Agreement Exchange Cap

'

'

'

'

'

'

1,434,994

1,434,994

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock Purchase Agreement Exchange Rate Cap

'

'

'

'

'

'

19.99%

19.99%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock Purchase Agreement Signing Price Description

'

'

'

'

'

'

'$2.76 plus $0.254

'2.76 plus $0.254

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock Purchase Agreement Signing Price Amount (in Dollars per share)

'

'

'

'

'

'

$3.01

$3.01

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock Purchase Agreement Purchase Price Per Share Determination Threshold Number Of Lowest Closing Sale Price

'

'

'

'

'

'

3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock Purchase Agreement Purchase Price Per Share Determination Threshold Consecutive Trading Days

'

'

'

'

'

'

'12 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Warrants_Details

Warrants (Details) (USD $)	9 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2013	Jul. 03, 2013	Oct. 15, 2010
		Private Placement [Member]	Warrant [Member]	Warrant [Member]	Warrant [Member]
		Warrant [Member]	Kanis S.A [Member]
Warrants (Details) [Line Items]	'	'	'	'	'
Warrants Cancelled	128,333	'	128,333	'	'
Warrants Cancelled In Period Weighted Average Exercise Price (in Dollars per share)	$7.92	'	$7.92	'	'
Class of Warrant or Right, Number of Securities Called by Warrants or Rights	94,000	94,000	'	865,000	379,678
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Share)	$1.25	$1.25	'	$1.25	$7.92

Warrants_Details_Warrant_activ

Warrants (Details) - Warrant activity (USD $)	0 Months Ended		9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013
Warrant activity [Abstract]	'	'	'
Warrants, Shares Outstanding (in Shares)	1,780,780	923,090	1,780,780
Warrants,Weighted Average Exercise Price Outstanding	$3.95	$7.77	$3.95
Warrants, Range of Exercise Price Outstanding	'$1.25-$10.40	'$2.09 - $48.90	'
Warrants exercisable at September 30, 2013 (in Shares)	1,726,180	'	1,726,180
Warrants exercisable at September 30, 2013	$4.02	'	$4.02
Warrants exercisable at September 30, 2013	'$1.25-$10.40	'	'
Warrants issued (in Shares)	'	'	993,600
Warrants issued	'	'	$1.25
Warrants issued	'	'	'$1.25
Warrants expired/forfeited (in Shares)	'	'	-7,577
Warrants expired/forfeited	'	'	$48.90
Warrants expired/forfeited	'	'	'$48.90
Warrants cancelled (in Shares)	'	'	-128,333
Warrants cancelled	'	'	$7.92
Warrants cancelled	'	'	$7.92

Warrants_Details_Assumptions_a

Warrants (Details) - Assumptions and fair value of warrants (USD $)	0 Months Ended
	Jul. 03, 2013	Sep. 30, 2013
	Warrant [Member]	Monte Carlo Simulation Model [Member]
Warrants (Details) - Assumptions and fair value of warrants [Line Items]	'	'
Expected volatility	80.50%	77.00%
Risk-free interest rate	1.64%	1.46%
Dividend yield	'	'
Price of CDTi common stock (in Dollars per share)	'	$1.42
Expected life in years	'5 years	'
Grant Date Fair value (in Dollars per share)	$0.78	$0.95

Warrants_Details_Reconciliatio

Warrants (Details) - Reconciliation of the warrant liability measured at fair value using Level 3 inputs (Warrant [Member], Fair Value, Inputs, Level 3 [Member], USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Warrant [Member] | Fair Value, Inputs, Level 3 [Member]	'	'
Warrants (Details) - Reconciliation of the warrant liability measured at fair value using Level 3 inputs [Line Items]	'	'
Balance at beginning of period	$10	$100
Issuance of common stock warrants	749	'
Re-measurement of common stock warrants	151	59
Balance at end of period	$910	$159

StockBased_Compensation_Detail

Stock-Based Compensation (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Stock-Based Compensation (Details) [Line Items]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares)	402,187	'	402,187	'
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options	$400,000	'	$400,000	'
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	'	'	'1 year 146 days	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)	'	'	254,411	'
Employee And Non Employee [Member]	'	'	'	'
Stock-Based Compensation (Details) [Line Items]	'	'	'	'
Allocated Share-based Compensation Expense	200,000	100,000	500,000	400,000
Restricted Stock Units (RSUs) [Member] | Vesting Over Three Years [Member]	'	'	'	'
Stock-Based Compensation (Details) [Line Items]	'	'	'	'
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options To Be Vested In Subsequent Period (in Shares)	'	'	225,221	'
Restricted Stock Units (RSUs) [Member] | Vesting One Year From Grant Date [Member]	'	'	'	'
Stock-Based Compensation (Details) [Line Items]	'	'	'	'
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options To Be Vested In Subsequent Period (in Shares)	'	'	29,190	'
Restricted Stock Units (RSUs) [Member]	'	'	'	'
Stock-Based Compensation (Details) [Line Items]	'	'	'	'
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	'	'	'2 years 36 days	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)	'	'	254,411	'
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options	$600,000	'	$600,000	'

StockBased_Compensation_Detail1

Stock-Based Compensation (Details) - Stock option activity (USD $)	0 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013	Dec. 31, 2012
Stock option activity [Abstract]	'	'	'
Options, Outstanding Number of Share	717,876	717,876	785,986
Options, Outstanding Weighted Average Exercise Price (in Dollars per share)	$7.54	$7.54	$7.81
Options, Outstanding Weighted Average Remaining Contractual Term	'7 years 292 days	'	'
Options, Outstanding Aggregate Intrinsic Value (in Dollars)	'	'	'
Exercisable at September 30, 2013	462,239	462,239	'
Exercisable at September 30, 2013 (in Dollars per share)	$10.11	$10.11	'
Exercisable at September 30, 2013	'7 years 160 days	'	'
Exercisable at September 30, 2013 (in Dollars)	'	'	'
Granted	'	'	'
Forfeited /expired	'	-68,110	'
Forfeited /expired (in Dollars per share)	'	$10.63	'

StockBased_Compensation_Detail2

Stock-Based Compensation (Details) - Valuation Assumption (USD $)	12 Months Ended
	Dec. 31, 2012
Valuation Assumption [Abstract]	'
Expected volatility	84.40%
Risk-free interest rate	1.10%
Dividend yield	'
Expected life in years	5.96
Weighted average grant date fair value (in Dollars per share)	$2.07

StockBased_Compensation_Detail3

Stock-Based Compensation (Details) - RSU activity (USD $)	9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
RSU activity [Abstract]	'	'
Restricted Share Units, Non-vested, share	323,799	167,165
Restricted Share Units, Non-vested, Weighted Average Grant Date Fair Value (in Dollars per share)	$2.36	$3.08
Restricted Share Units, Non-vested, Aggregate Intrinsic Value (in Dollars)	'	'
Granted	254,411	'
Granted (in Dollars per share)	$2.17	'
Vested	-63,375	'
Vested (in Dollars per share)	$3.38	'
Forfeited	-34,402	'
Forfeited (in Dollars per share)	$2.48	'

Joint_Venture_Details

Joint Venture (Details)	0 Months Ended						9 Months Ended				9 Months Ended
	Oct. 10, 2013	Oct. 10, 2013	Apr. 30, 2013	Apr. 30, 2013	Feb. 28, 2013	Feb. 28, 2013	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2012	Jul. 25, 2013	Sep. 30, 2013
	USD ($)	EUR (€)	USD ($)	EUR (€)	USD ($)	EUR (€)	USD ($)	EUR (€)	USD ($)	EUR (€)	Parent Company [Member]
											USD ($)
Joint Venture (Details) [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Joint Venture Ownership Percentage	'	'	'	'	'	'	50.00%	50.00%	'	'	'
Payments to Acquire Interest in Joint Venture	$166,000	€ 120,000	'	'	$66,000	€ 50,000	$66,000	'	'	'	'
Payments for Advance to Affiliate	'	'	261,000	200,000	'	'	263,000	'	'	'	'
Joint Venture Shareholder Loan Converted To Equity	'	'	'	'	'	'	'	'	'	175,000	'
Gain (Loss) on Joint Venture	'	'	'	'	'	'	$800,000	€ 600,000	'	'	$400,000

Contingencies_Details

Contingencies (Details) (USD $)	0 Months Ended
In Millions, unless otherwise specified	Sep. 27, 2013
Sales and Use Tax Audit [Member]	'
Contingencies (Details) [Line Items]	'
Loss Contingency, Range of Possible Loss, Maximum (in Dollars)	1.3
Administrative complaint by former CFO [Member]	'
Contingencies (Details) [Line Items]	'
Loss Contingency, Damages Awarded	'in excess of $1.9 million

Segment_Reporting_Details

Segment Reporting (Details)	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]	'
Number of Operating Segments	2

Segment_Reporting_Details_Comp

Segment Reporting (Details) - Company’s reportable segments (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Reporting Information [Line Items]	'	'	'	'
Net sales	$14,205	$14,400	$40,067	$48,123
Income (loss) from operations	127	-1,156	-3,036	-5,460
Operating Segments [Member] | Heavy Duty Diesel Systems [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net sales	7,969	8,680	22,362	32,283
Income (loss) from operations	698	-272	280	-545
Operating Segments [Member] | Catalyst [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net sales	7,199	6,659	19,951	19,194
Income (loss) from operations	597	261	850	-750
Operating Segments [Member] | Corporate Segment [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net sales	'	'	'	'
Income (loss) from operations	-1,202	-1,209	-4,278	-4,251
Intersegment Eliminations [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net sales	-963	-939	-2,246	-3,354
Income (loss) from operations	$34	$64	$112	$86

Segment_Reporting_Details_Net_

Segment Reporting (Details) - Net sales by geographic region (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'
Net sales	$14,205	$14,400	$40,067	$48,123
United States [Member]	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'
Net sales	7,346	7,145	20,772	20,675
Canada [Member]	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'
Net sales	5,794	5,461	15,477	16,966
United Kingdom [Member]	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'
Net sales	249	500	747	5,919
Sweden [Member]	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'
Net sales	$816	$1,294	$3,071	$4,563