P10 Industries (PIOE) 10-Q 18 Nov 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2013	Oct. 31, 2013
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'ACTIVE POWER INC	'
Entity Central Index Key	'0001044435	'
Current Fiscal Year End Date	'--12-31	'
Entity Well-known Seasoned Issuer	'No	'
Entity Voluntary Filers	'No	'
Entity Current Reporting Status	'Yes	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	19,362,301
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'Q3	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-13	'

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$14,252	$13,524
Restricted cash	511	0
Accounts receivable, net of allowance for doubtful accounts of $838 and $488 at September 30, 2013 and December 31, 2012, respectively	8,713	17,862
Inventories, net	13,244	11,079
Prepaid expenses and other	2,390	567
Total current assets	39,110	43,032
Property and equipment, net	2,859	2,458
Deposits and other	294	309
Total assets	42,263	45,799
Current liabilities:	'	'
Accounts payable	4,461	4,036
Accrued expenses	5,134	4,948
Deferred revenue	3,064	4,568
Revolving line of credit	5,535	5,535
Total current liabilities	18,194	19,087
Long-term liabilities	737	713
Stockholders' equity	'	'
Preferred Stock - $0.001 par value; 2,000 shares authorized	0	0
Common stock - $0.001 par value; 30,000 shares authorized; 19,421 and 19,171 issued and 19,362 and 19,125 outstanding at September 30, 2013 and December 31, 2012, respectively	19	19
Treasury stock	-200	-144
Additional paid-in capital	290,193	288,619
Accumulated deficit	-267,041	-262,817
Other accumulated comprehensive income	361	322
Total stockholders' equity	23,332	25,999
Total liabilities and stockholders' equity	$42,263	$45,799

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, except Per Share data, unless otherwise specified
Current assets:	'	'
Accounts receivable, allowance for doubtful accounts	$838	$488
Stockholders' equity:	'	'
Preferred Stock, par value (in dollars per share)	$0.00	$0.00
Preferred Stock, shares authorized (in shares)	2,000	2,000
Common Stock, par value (in dollars per share)	$0.00	$0.00
Common Stock, shares authorized (in shares)	30,000	30,000
Common Stock, shares issued (in shares)	19,421	19,171
Common Stock, shares outstanding (in shares)	19,362	19,125

Condensed_Consolidated_Stateme

Condensed Consolidated Statement of Operations and Comprehensive Loss (Unaudited) (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:	'	'	'	'
Product revenue	$8,023	$16,647	$34,858	$50,534
Service and other revenue	5,131	2,964	12,915	10,534
Total revenue	13,154	19,611	47,773	61,068
Cost of goods sold:	'	'	'	'
Cost of product revenue	6,784	12,254	25,373	35,608
Cost of service and other revenue	2,426	1,742	7,180	6,766
Total cost of goods sold	9,210	13,996	32,553	42,374
Gross profit	3,944	5,615	15,220	18,694
Operating expenses:	'	'	'	'
Research and development	2,149	1,325	5,580	4,045
Selling and marketing	2,714	3,447	8,684	10,891
General and administrative	2,046	1,691	4,759	5,175
Total operating expenses	6,909	6,463	19,023	20,111
Loss from Operations	-2,965	-848	-3,803	-1,417
Interest expense, net	-118	-80	-282	-246
Other income (expense), net	-52	81	-139	159
Net Loss	-3,135	-847	-4,224	-1,504
Net Loss per share, Basic (in dollars per share)	($0.16)	($0.04)	($0.22)	($0.08)
Shares used in computing net loss per share, basic (in shares)	19,337	19,115	19,188	18,400
Comprehensive loss:	'	'	'	'
Net Loss	-3,135	-847	-4,224	-1,504
Translation gain (loss) on subsidiaries denominated in foreign currencies	238	211	39	-99
Comprehensive loss:	($2,897)	($636)	($4,185)	($1,603)

Condensed_Consolidated_Stateme1

Condensed Consolidated Statement of Stockholders' Equity (Unaudited) (USD $)	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Other Accumulated Comprehensive Income (Loss) [Member]	Total
In Thousands, unless otherwise specified
Balance at Dec. 31, 2012	$19	($144)	$288,619	($262,817)	$322	$25,999
Balance (in shares) at Dec. 31, 2012	19,171	33	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'
Employee stock purchases	0	0	684	0	0	684
Employee stock purchases (in shares)	189	0	'	'	'	'
Release of Restricted Stock	0	-56	7	0	0	-49
Release of Restricted Stock (in shares)	61	13	'	'	'	'
Net translation gain on foreign subsidiaries	0	0	0	0	39	39
Stock-based compensation	0	0	905	0	0	905
Issuance costs, shelf registration	'	'	-22	'	'	-22
Net Loss	0	0	0	-4,224	0	-4,224
Balance at Sep. 30, 2013	$19	($200)	$290,193	($267,041)	$361	$23,332
Balance (in shares) at Sep. 30, 2013	19,421	46	'	'	'	'

Condensed_Consolidated_Stateme2

Condensed Consolidated Statement of Cash Flows (Unaudited) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Operating activities	'	'
Net Loss	($4,224)	($1,504)
Adjustments to reconcile net loss to cash provided by (used in) operating activities:	'	'
Depreciation expense	804	955
Change to allowance for doubtful accounts	350	325
Loss on disposal of fixed assets	33	31
Impairment on fixed assets	69	0
Stock-based compensation	916	1,131
Changes in operating assets and liabilities:	'	'
Restricted cash	-511	3
Accounts receivable	8,799	-6,828
Inventories	-2,613	77
Prepaid expenses and other assets	-1,808	-946
Accounts payable	425	-104
Accrued expenses	174	-1,502
Deferred revenue	-1,504	3,098
Long term liabilities	24	72
Net cash provided by (used in) operating activities	934	-5,192
Investing activities	'	'
Purchases of property and equipment	-927	-1,021
Proceeds from sale of fixed assets	68	0
Net cash used in investing activities	-859	-1,021
Financing activities	'	'
Proceeds from private placement of common stock	0	9,750
Issuance costs of private placement	0	-187
Proceeds from draw on revolving line of credit	0	2,017
Payments on revolving line of credit	0	-2,017
Proceeds from employee stock purchases	683	491
Issuance costs, shelf registration	-20	0
Taxes paid related to net share settlement of equity awards	-49	-20
Net cash provided by financing activities	614	10,034
Translation gain (loss) on subsidiaries in foreign currencies	39	-99
Change in cash and cash equivalents	728	3,722
Cash and cash equivalents, beginning of period	13,524	10,357
Cash and cash equivalents, end of period	$14,252	$14,079

Significant_Accounting_Policie

Significant Accounting Policies	9 Months Ended
	Sep. 30, 2013
Significant Accounting Policies [Abstract]	'
Significant Accounting Policies	'
	1	Significant Accounting Policies
	Organization and Basis of presentation
	Active Power, Inc. and its subsidiaries (hereinafter referred to as “we”, “us”, “Active Power” or the “Company”) manufacture and provide critical power quality and modular infrastructure solutions that provide business continuity and protect customers in the event of an electrical power disturbance. Our products and solutions are designed to deliver continuous clean power, protecting customers from voltage fluctuations, such as surges and sags, and frequency fluctuations, and also to provide ride-through, or temporary, power to bridge the gap between a power outage and the restoration of utility power. Our target customers are those global enterprises requiring “power insurance” because they have zero tolerance for downtime in their mission critical operations. The Uninterruptible Power Supply (“UPS”) products we manufacture use kinetic energy to provide short-term power as a cleaner alternative to electro-chemical battery-based energy. We sell stand-alone UPS products as well as complete continuous power and infrastructure solutions, including containerized continuous power systems that we brand as PowerHouse™. We sell our products globally through our direct sales force, manufacturer’s representatives, Original Equipment Manufacturer (“OEM”) channels and IT partners. Our current principal markets are the Americas, Europe Middle East and Africa (“EMEA”), and Asia.
	The accompanying condensed consolidated balance sheet as of December 31, 2012, which has been derived from audited financial statements, and the unaudited interim condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles for interim financial statements and pursuant to the rules and regulations of the SEC for interim reporting, and include the accounts of the Company and its consolidated subsidiaries. In the opinion of management, the accompanying unaudited condensed consolidated financial statements contain all adjustments (consisting only of normal recurring items) necessary to present fairly the consolidated financial position of the Company and its consolidated results of operations and cash flows. These interim financial statements should be read in conjunction with the financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2012. Please refer to our filings on Form 10-Q/A for the periods ended March 31, 2013 and June 30, 2013, for information regarding the restatements of our financial results for the periods ended March 31, 2013 and June 30, 2013, respectively, and the impact of such restatements on our unaudited condensed financial statements for the period ended September 30, 2013.

Supplemental_Balance_Sheet_Inf

Supplemental Balance Sheet Information	9 Months Ended
	Sep. 30, 2013
Supplemental Balance Sheet Information [Abstract]	'
Supplemental Balance Sheet Information	'
	2	Supplemental Balance Sheet Information
	Restricted Cash
	Our restricted cash balance of $0.5 million as of September 30, 2013 consists primarily of secured performance and deposit guarantees given to customers. Upon satisfaction of these guarantees, the restriction on these funds will be released.
	Receivables
	Accounts receivable consist of the following (in thousands):
			30-Sep-13			31-Dec-12
	Trade receivables		$	9,551		$	18,350
	Allowance for doubtful accounts			838			488
			$	8,713		$	17,862
	We estimate an allowance for doubtful accounts based on factors related to the credit risk of each customer. Historically, our credit losses have been minimal. The increase in allowance for doubtful accounts in the third quarter of 2013 was primarily related to customers in China.
	Inventories
	We state inventories at the lower of cost or market, using the first-in-first-out-method (in thousands, net of allowance):
			30-Sep-13			31-Dec-12
	Raw materials		$	5,417		$	5,424
	Work in process			3,136			2,186
	Finished goods			4,691			3,469
			$	13,244		$	11,079
	Property and Equipment
	Property and equipment consist of the following (in thousands):
			30-Sep-13			31-Dec-12
	Equipment		$	9,093		$	10,298
	Demonstration units			1,587			1,828
	Computers and purchased software			3,264			4,251
	Furniture and fixtures			378			444
	Leasehold improvements			7,201			7,662
	Construction in progress			69			188
				21,592			24,671
	Accumulated depreciation			(18,733	)		(22,213	)
			$	2,859		$	2,458
	Accrued Expenses
	Accrued expenses consist of the following (in thousands):
			30-Sep-13			31-Dec-12
	Compensation and benefits		$	1,871		$	2,199
	Warranty liability			574			694
	Property, income, state, sales and franchise tax			620			320
	Professional fees			699			502
	Other			1,370			1,233
			$	5,134		$	4,948
	Warranty Liability
	Generally, the warranty period for our power quality products is 12 months from the date of commissioning or 18 months from the date of shipment from Active Power, whichever period is shorter. Occasionally, we offer longer warranty periods to certain customers. The warranty period for products sold to our primary OEM customer, Caterpillar, is 12 months from the date of shipment to the end-user, or up to 36 months from shipment. This is dependent upon Caterpillar complying with our storage requirements for our products in order to preserve this warranty period beyond the standard 18-month limit. We provide for the estimated cost of product warranties at the time revenue is recognized and this accrual is included in accrued expenses and long-term liabilities on the accompanying consolidated balance sheet.
	Changes in our warranty liability are presented in the following table (in thousands):
	Balance at December 31, 2012		$	755
	Warranty expense			432
	Warranty charges incurred			(590	)
	Balance at September 30, 2013		$	597
	Warranty liability included in accrued expenses		$	574
	Long-term warranty liability			23
	Balance at September 30, 2013		$	597
	Revenue Recognition
	In general, we recognize revenue when four criteria are met: (i) persuasive evidence that an arrangement exists; (ii) delivery has occurred or services have been rendered; (iii) the sales price is fixed or determinable; and (iv) collectability is reasonably assured. Revenue-generating transactions generally fall into one of the following categories of revenue recognition:
		●	We recognize product revenue at the time of shipment for substantially all products sold directly to customers and through distributors because title and risk of loss pass on delivery to the common carrier. Our customers and distributors do not have the right to return products. If title and risk of loss pass at some other point in time, we recognize such revenue for our customers when the product is delivered to the customer and title and risk of loss have passed.  We may enter into bill-and-hold arrangements and when this occurs delivery may not be present, but other criteria are reviewed to determine the proper timing of revenue recognition.
		●	We recognize installation and service and maintenance revenue at the time the service is performed.
		●	We recognize revenue associated with extended maintenance agreements (“EMAs”) over the life of the contracts using the straight-line method, which approximates the expected timing in which applicable services are performed. Amounts collected in advance of revenue recognition are recorded as a current or long-term liability based on the time from the balance sheet date to the future date of revenue recognition.
		●	We recognize revenue on certain rental programs over the life of the rental agreement using the straight-line method. Amounts collected in advance of revenue recognition are recorded as a current or long-term liability based on the time from the balance sheet date to the future date of revenue recognition.
		●	Shipping costs reimbursed by the customer are included in revenue.
	When collectability is not reasonably assured, we defer revenue and will recognize revenue on a cost recovery basis as payments are received.
	Multiple element arrangements (“MEAs”) are arrangements to sell products to customers that frequently include multiple deliverables. Our most significant MEAs include the sale of one or more of our CleanSource® UPS or PowerHouse products, combined with one or more of the following products: design services, project management, commissioning and installation services, spare parts or consumables, and EMAs. Delivery of the various products or performance of services within the arrangement may or may not coincide. Certain services related to design and consulting may occur prior to delivery of product and commissioning and installation typically take place within six months of product delivery, depending upon customer requirements. EMAs, consumables, and repair, maintenance or consulting services generally are delivered over a period of one to five years. In certain arrangements, revenue recognized is limited to the amount invoiced or received that is not contingent on the delivery of future products and services.
	When arrangements include multiple elements, we allocate revenue to each element based on the relative selling price and recognize revenue when the elements have stand-alone value and the four criteria for revenue recognition have been met. We establish the selling price of each element based on Vendor Specific Objective Evidence (“VSOE”) if available, Third Party Evidence (“TPE”) if VSOE is not available, or Best Estimate of Selling Price (“BESP”) if neither VSOE nor TPE is available. We generally determine selling price based on amounts charged separately for the delivered and undelivered elements to similar customers in stand-alone sales of the specific elements. When arrangements include an EMA, we recognize revenue related to the EMA at the stated contractual price on a straight-line basis over the life of the agreement.
	Any taxes imposed by governmental authorities on our revenue-producing transactions with customers are shown in our consolidated statements of operations on a net-basis; that is, excluded from our reported revenues.

Net_Loss_Per_Share

Net Loss Per Share	9 Months Ended
	Sep. 30, 2013
Net Loss Per Share [Abstract]	'
Net Loss Per Share	'
	3	Net Loss Per Share
	All common stock information regarding the prior year included in this note have been adjusted to reflect the reverse stock split that took effect on December 21, 2012.
	The following table sets forth the computation of basic and diluted net loss per share (in thousands, except per share data):
			Three Months Ended September 30,						Nine Months Ended September 30,
			2013			2012			2013			2012
	Numerator:
	Net loss		$	(3,135	)	$	(847	)	$	(4,224	)	$	(1,504	)
	Denominator:
	Weighted-average shares of common stock outstanding			19,337			19,115			19,188			18,400
	Basic and diluted net loss per share		$	(0.16	)	$	(0.04	)	$	(0.22	)	$	(0.08	)
	The calculation of basic and diluted net loss per share excludes shares of common stock issuable upon exercise of employee stock options of 1,943,064 and 1,928,236 as of September 30, 2013 and 2012, respectively, and non-vested shares of common stock issuable upon exercise of restricted stock units of 96,299 and 199,329 as of September 30, 2013 and 2012, respectively, because their inclusion would have the effect of being anti-dilutive.

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	9 Months Ended
	Sep. 30, 2013
Fair Value of Financial Instruments [Abstract]	'
Fair Value of Financial Instruments	'
	4	Fair Value of Financial Instruments
	Our assets and liabilities, which are carried at fair value, are classified in one of the following categories:
	Level 1—Quoted prices in active markets for identical assets or liabilities.
	Level 2—Significant observable inputs other than quoted prices in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.
	Level 3—One or more significant inputs that are unobservable and supported by little or no market data.
	Inputs are referred to as assumptions that market participants would use in pricing the asset or liability. The uses of inputs in the valuation process are categorized into a three-level fair value hierarchy.
	Our Level 1 assets and liabilities consist of cash equivalents, which are primarily invested in money-market funds. These assets are classified as Level 1 because they are valued using quoted prices in active markets and other relevant information generated by market transactions involving identical assets and liabilities.
	Our cash and cash equivalents include money-market funds for which the fair value was determined using Level 1 inputs and was $3.1 million as of September 30, 2013 and December 31, 2012. For cash and cash equivalents, accounts receivable, and accounts payable, the carrying amount approximates fair value because of the relative short maturity of those instruments.

Guarantees

Guarantees	9 Months Ended
	Sep. 30, 2013
Guarantees [Abstract]	'
Guarantees	'
	5	Guarantees
	In certain geographical regions, particularly EMEA, we are sometimes required to issue performance guarantees to our customers as a condition of sale. These guarantees usually provide financial protection to our customers in the event that we fail to fulfill our delivery or product warranty obligations. We secure these guarantees with standby letters of credit through our bank. At September 30, 2013 and December 31, 2012, we had $0.5 million and $0, respectively, of performance guarantees outstanding to customers that were secured with letters of credit. The current guarantee is set to expire on April 17, 2014. There is no foreseeable risk that we will not be able to meet the performance obligations. Our restricted cash, as shown on the balance sheet, is related to these guarantees.

Subsequent_Events

Subsequent Events	9 Months Ended
	Sep. 30, 2013
Subsequent Events [Abstract]	'
Subsequent Events	'
	6	Subsequent Events
	On October 29, 2013, we received $0.2 million in cash from Qiyuan Network System Limited, as an additional payment towards the outstanding amount owed on previous shipments made by us. We will recognize revenue for this cash payment in the fourth quarter of 2013. We also accepted a return of goods from such customer on November 4, 2013 that we will put back into inventory in the amount of $1.6 million in the fourth quarter of 2013.
	On September 10, 2013, a purported class action complaint was filed in the United States District Court for the Western District of Texas against the Company and certain of its current and former executives. The case is captioned Don Lee v. Active Power, Inc., et. al., Civil Action No. 1:3-cv-00797. The complaint alleges that on April 30, 2013, the Company announced during a conference call that it had entered into a strategic distribution partnership with Digital China.  However, on September 5, 2013, after the close of trading, the Company disclosed that its partnership was with Qiyuan Network System Limited, which is neither an affiliate nor a subsidiary of Digital China.  The complaint asserts claims under Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, as amended, and Rule 10b-5 promulgated thereunder, and seeks unspecified damages on behalf of all stockholders.
	On September 13 and October 14, 2013, two separate stockholders filed complaints in the District Court of Travis County, Texas purporting to bring derivative actions on behalf of the Company against certain current and former officers and directors of the Company.  The first derivative action is captioned Okumura v. Almgren, et. al., Cause No. D-1-GN-13-003230 and the second derivative action is captioned David B. Shaev IRA v. Milner, et. al., Cause No. D-1-GN-13-003557.  The allegations of each derivative complaint mirror those of the class action complaint, and they assert claims for breach of fiduciary duty, unjust enrichment, and/or abuse of control and seek damages on behalf of the Company.  Defendants have entered into an agreement with each of the plaintiffs to stay both of the derivative actions pending the outcome of the motion to dismiss in the securities class action described above.
	As of November 18, 2013 we cannot assess the potential outcome of these lawsuits.

Supplemental_Balance_Sheet_Inf1

Supplemental Balance Sheet Information (Tables)	9 Months Ended
	Sep. 30, 2013
Supplemental Balance Sheet Information [Abstract]	'
Accounts receivables	'
	Receivables
	Accounts receivable consist of the following (in thousands):
		30-Sep-13			31-Dec-12
	Trade receivables	$	9,551		$	18,350
	Allowance for doubtful accounts		838			488
		$	8,713		$	17,862
Schedule of inventory	'
	Inventories
	We state inventories at the lower of cost or market, using the first-in-first-out-method (in thousands, net of allowance):
		30-Sep-13			31-Dec-12
	Raw materials	$	5,417		$	5,424
	Work in process		3,136			2,186
	Finished goods		4,691			3,469
		$	13,244		$	11,079
Property and Equipment	'
	Property and Equipment
	Property and equipment consist of the following (in thousands):
		30-Sep-13			31-Dec-12
	Equipment	$	9,093		$	10,298
	Demonstration units		1,587			1,828
	Computers and purchased software		3,264			4,251
	Furniture and fixtures		378			444
	Leasehold improvements		7,201			7,662
	Construction in progress		69			188
			21,592			24,671
	Accumulated depreciation		(18,733	)		(22,213	)
		$	2,859		$	2,458
Accrued Expenses	'
	Accrued Expenses
	Accrued expenses consist of the following (in thousands):
		30-Sep-13			31-Dec-12
	Compensation and benefits	$	1,871		$	2,199
	Warranty liability		574			694
	Property, income, state, sales and franchise tax		620			320
	Professional fees		699			502
	Other		1,370			1,233
		$	5,134		$	4,948
Changes in warranty liability	'
	Changes in our warranty liability are presented in the following table (in thousands):
	Balance at December 31, 2012	$	755
	Warranty expense		432
	Warranty charges incurred		(590	)
	Balance at September 30, 2013	$	597
	Warranty liability included in accrued expenses	$	574
	Long-term warranty liability		23
	Balance at September 30, 2013	$	597

Net_Loss_Per_Share_Tables

Net Loss Per Share (Tables)	9 Months Ended
	Sep. 30, 2013
Net Loss Per Share [Abstract]	'
Computation of basic and diluted net loss per share	'
	The following table sets forth the computation of basic and diluted net loss per share (in thousands, except per share data):
		Three Months Ended September 30,						Nine Months Ended September 30,
		2013			2012			2013			2012
	Numerator:
	Net loss	$	(3,135	)	$	(847	)	$	(4,224	)	$	(1,504	)
	Denominator:
	Weighted-average shares of common stock outstanding		19,337			19,115			19,188			18,400
	Basic and diluted net loss per share	$	(0.16	)	$	(0.04	)	$	(0.22	)	$	(0.08	)

Supplemental_Balance_Sheet_Inf2

Supplemental Balance Sheet Information (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
	Criteria
	Product
Restricted Cash [Abstract]	'	'
Restricted cash	$511	$0
Receivables [Abstract]	'	'
Trade receivables	9,551	18,350
Allowance for doubtful accounts	838	488
Accounts receivable, net	8,713	17,862
Inventory [Abstract]	'	'
Raw materials	5,417	5,424
Work in process	3,136	2,186
Finished goods	4,691	3,469
Inventories	13,244	11,079
Property and Equipment [Line Items]	'	'
Property and equipment, gross	21,592	24,671
Accumulated depreciation	-18,733	-22,213
Property and equipment, net	2,859	2,458
Accrued Expenses [Abstract]	'	'
Compensation and benefits	1,871	2,199
Warranty liability	574	694
Property, income, state, sales and franchise tax	620	320
Professional fees	699	502
Other	1,370	1,233
Accrued expenses	5,134	4,948
Warranty Liability [Abstract]	'	'
Standard power quality products warranty period from date of commissioning	'12 months	'
Standard power quality products warranty period from date of shipment	'18 months	'
Standard products warranty period for primary OEM customer	'12 months	'
Extended products warranty period from date of shipment to primary OEM customer, Maximum	'36 months	'
Changes in warranty liability [Roll Forward]	'	'
Beginning Balance	755	'
Warranty expense	432	'
Warranty charges incurred	-590	'
Ending Balance	597	'
Warranty liability included in accrued expenses	574	694
Long-term warranty liability	23	'
Warranty accrual at end of period	597	'
Revenue Recognition [Abstract]	'	'
Number of criteria to be met for revenue recognition	4	'
Minimum number of CleanSource UPS or PowerHouse products included in significant MEAs	1	'
Minimum number of second tier products included in significant MEAs	1	'
Commissioning and installation period	'6 months	'
EMAs, consumables, repair, maintenance and consulting services general deliverable period, minimum	'1 year	'
EMAs, consumables, repair, maintenance and consulting services general deliverable period, maximum	'5 years	'
Equipment [Member]	'	'
Property and Equipment [Line Items]	'	'
Property and equipment, gross	9,093	10,298
Demonstration Units [Member]	'	'
Property and Equipment [Line Items]	'	'
Property and equipment, gross	1,587	1,828
Computers and Purchased Software [Member]	'	'
Property and Equipment [Line Items]	'	'
Property and equipment, gross	3,264	4,251
Furniture and Fixtures [Member]	'	'
Property and Equipment [Line Items]	'	'
Property and equipment, gross	378	444
Leasehold Improvements [Member]	'	'
Property and Equipment [Line Items]	'	'
Property and equipment, gross	7,201	7,662
Construction in Progress [Member]	'	'
Property and Equipment [Line Items]	'	'
Property and equipment, gross	$69	$188

Net_Loss_Per_Share_Details

Net Loss Per Share (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Numerator: [Abstract]	'	'	'	'
Net loss	($3,135)	($847)	($4,224)	($1,504)
Denominator: [Abstract]	'	'	'	'
Weighted-average shares of common stock outstanding (in shares)	19,337,000	19,115,000	19,188,000	18,400,000
Basic and diluted net loss per share (in dollars per share)	($0.16)	($0.04)	($0.22)	($0.08)
Stock Options [Member]	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'	'
Common stock equivalents excluded from calculation because effect would have been anti-dilutive (in shares)	'	'	1,943,064	1,928,236
Restricted Stock Units (RSUs) [Member]	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'	'
Common stock equivalents excluded from calculation because effect would have been anti-dilutive (in shares)	'	'	96,299	199,329

Fair_Value_of_Financial_Instru1

Fair Value of Financial Instruments (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Fair Value of Financial Instruments [Abstract]	'	'
Money-market funds for which the fair value was determined	$3.10	$3.10

Guarantees_Details

Guarantees (Details) (Performance Guarantee [Member], USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Performance Guarantee [Member]	'	'
Guarantor Obligations [Line Items]	'	'
Performance guarantees outstanding to customers	$0.50	$0

Subsequent_Events_Details

Subsequent Events (Details) (USD $)	9 Months Ended		0 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Nov. 04, 2013	Oct. 29, 2013
			Subsequent Event [Member]	Subsequent Event [Member]
				Qiyuan Network Systems [Member]
Subsequent Event [Line Items]	'	'	'	'
Payment received from outstanding amount owed	($8,799,000)	$6,828,000	'	$200,000
Expected inventory return	'	'	$1,600,000	'