Energy Recovery (ERII) 10-Q 7 May 15 2015 Q1 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	3 Months Ended
	Mar. 31, 2015	1-May-15
Document and Entity Information [Abstract]
Entity Registrant Name	Energy Recovery, Inc.
Document Type	10-Q
Current Fiscal Year End Date	-19
Entity Common Stock, Shares Outstanding		52,030,357
Amendment Flag	FALSE
Entity Central Index Key	1421517
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Well-known Seasoned Issuer	No
Document Period End Date	31-Mar-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Current assets:
Cash and cash equivalents	$20,391	$15,501
Restricted cash	2,263	2,623
Short-term investments	8,323	13,072
Accounts receivable, net of allowance for doubtful accounts of $110 and $155 at March 31, 2015 and December 31, 2014, respectively	5,333	10,941
Unbilled receivables, current	1,023	1,343
Inventories	9,334	8,204
Deferred tax assets, net	240	240
Prepaid expenses and other current assets	1,163	1,317
Total current assets	48,070	53,241
Restricted cash, non-current	2,126	2,850
Unbilled receivables, non-current	420	414
Long-term investments	265	267
Property and equipment, net of accumulated depreciation of $15,961 and $15,143 at March 31, 2015 and December 31, 2014, respectively	12,574	13,211
Goodwill	12,790	12,790
Other intangible assets, net	3,007	3,166
Other assets, non-current	2	2
Total assets	79,254	85,941
Current liabilities:
Accounts payable	2,032	1,817
Accrued expenses and other current liabilities	7,242	8,427
Income taxes payable	6	4
Accrued warranty reserve	756	755
Deferred revenue	1,134	519
Current portion of long-term debt	11
Total current liabilities	11,181	11,522
Long-term debt, net of current portion	44
Deferred tax liabilities, non-current, net	2,054	1,989
Deferred revenue, non-current	18	59
Other non-current liabilities	2,881	2,453
Total liabilities	16,178	16,023
Commitments and Contingencies (Note 9)
Stockholders’ equity:
Preferred stock, $0.001 par value; 10,000,000 shares authorized; no shares issued or outstanding
Common stock, $0.001 par value; 200,000,000 shares authorized; 54,494,813 shares issued and 52,015,357 shares outstanding at March 31, 2015, and 54,398,421 shares issued and 51,918,965 shares outstanding at December 31, 2014	54	54
Additional paid-in capital	125,847	124,440
Accumulated other comprehensive loss	-39	-73
Treasury stock, at cost 2,479,456 shares repurchased at both March 31, 2015 and December 31, 2014	-6,835	-6,835
Accumulated deficit	-55,951	-47,668
Total stockholders’ equity	63,076	69,918
Total liabilities and stockholders’ equity	$79,254	$85,941

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, except Share data, unless otherwise specified
Allowance for doubtful accounts (in Dollars)	$110	$155
Property and equipment, accumulated depreciation (in Dollars)	$15,961	$15,143
Preferred stock, par value (in Dollars per share)	$0.00	$0.00
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in Dollars per share)	$0.00	$0.00
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	54,494,813	54,398,421
Common stock, shares outstanding	52,015,357	51,918,965
Treasury stock, at cost, shares	2,479,456	2,479,456

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Net revenue	$5,864	$3,897
Cost of revenue	2,531	1,652
Gross profit	3,333	2,245
Operating expenses:
General and administrative	6,278	2,039
Sales and marketing	2,433	2,495
Research and development	2,533	1,234
Amortization of intangible assets	159	215
Total operating expenses	11,403	5,983
Loss from operations	-8,070	-3,738
Interest expense	-40
Other non-operating (expense) income	-102	121
Loss before income taxes	-8,212	-3,617
Provision for income taxes	71	66
Net loss	($8,283)	($3,683)
Basic and diluted net loss per share (in Dollars per share)	($0.16)	($0.07)
Shares used in basic and diluted per share calculation (in Shares)	51,948	51,446

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Comprehensive Loss (Unaudited) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Net loss	($8,283)	($3,683)
Other comprehensive income, net of tax:
Foreign currency translation adjustments	31	43
Unrealized gain on investments	3	2
Other comprehensive income	34	45
Comprehensive loss	($8,249)	($3,638)

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Cash Flows From Operating Activities
Net loss	($8,283)	($3,683)
Adjustments to reconcile net loss to net cash used in operating activities:
Share-based compensation	1,140	581
Depreciation and amortization	979	983
Unrealized loss on foreign currency transactions	124	10
Amortization of premiums/discounts on investments	79	125
Deferred income taxes	65	56
Provision for warranty claims	21	3
Provision for doubtful accounts	2	72
Valuation adjustments for excess or obsolete inventory	-10	40
Other non-cash adjustments	428	-125
Changes in operating assets and liabilities:
Accounts receivable	5,524	-2,052
Deferred revenue	574	15
Unbilled receivables	314	4,696
Accounts payable	215	448
Prepaid and other assets	154	-1,112
Income taxes payable	2	7
Accrued expenses and other liabilities	-1,192	-2,638
Inventories	-1,120	-3,361
Net cash used in operating activities	-984	-5,935
Cash Flows From Investing Activities
Maturities of marketable securities	4,675	2,600
Restricted cash	1,084	412
Capital expenditures	-179	-38
Net cash provided by investing activities	5,580	2,974
Cash Flows From Financing Activities
Net proceeds from issuance of common stock	250	604
Proceeds from borrowings	55
Repurchase of common stock for treasury		-633
Net cash provided by (used in) financing activities	305	-29
Effect of exchange rate differences on cash and cash equivalents	-11	56
Net change in cash and cash equivalents	4,890	-2,934
Cash and cash equivalents, beginning of period	15,501	14,371
Cash and cash equivalents, end of period	$20,391	$11,437

Note_1_The_Company_and_Summary

Note 1 - The Company and Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Significant Accounting Policies [Text Block]	Note 1 — The Company and Summary of Significant Accounting Policies
	The Company
	Energy Recovery, Inc. (the “Company”, “Energy Recovery”, “we”, “our”, or “us”) designs, develops, and manufactures, energy recovery devices that transform untapped energy into reusable energy from industrial fluid flows and pressure cycles. Our products are marketed and sold in fluid flow markets, such as desalination and oil & gas, under the trademarks ERI®, PX®, Pressure Exchanger®, PX Pressure Exchanger®, IsoBoost™, IsoGen™ , and VorTeq TM. Our products are developed and manufactured in the United States of America (“U.S.”) at our headquarters in San Leandro, California, and we have four wholly-owned subsidiaries: Energy Recovery Iberia, S.L., Energy Recovery Canada Corp., ERI Energy Recovery Ireland Ltd., and ERI Energy Recovery Holdings Ireland Limited. We also have sales offices in Dubai, United Arab Emirates and Shanghai, Peoples Republic of China.
	Use of Estimates
	The preparation of condensed consolidated financial statements in conformity with U.S. generally accepted accounting principles (“U.S. GAAP”) requires our management to make judgments, assumptions, and estimates that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Our more significant estimates and judgments that we believe are the most critical to aid in fully understanding and evaluating our reported financial results are revenue recognition; allowance for doubtful accounts; allowance for product warranty; valuation of stock options; valuation and impairment of goodwill, long-lived assets, and acquired intangible assets; useful lives for depreciation and amortization; valuation adjustments for excess and obsolete inventory; and deferred taxes and valuation allowances on deferred tax assets. Actual results could differ materially from those estimates.
	Basis of Presentation
	The condensed consolidated financial statements include the accounts of Energy Recovery, Inc. and its wholly-owned subsidiaries. All significant intercompany accounts and transactions have been eliminated.
	The accompanying condensed consolidated financial statements have been prepared by us, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. The December 31, 2014 condensed consolidated balance sheet was derived from audited financial statements, and may not include all disclosures required by U.S. GAAP; however, we believe that the disclosures are adequate to make the information presented not misleading. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto for the fiscal year ended December 31, 2014 included in our Annual Report on Form 10-K filed with the SEC on March 6, 2015.
	In the opinion of management, all adjustments, consisting of only normal recurring adjustments that are necessary to present fairly the financial position, results of operations, and cash flows for the interim periods, have been made. The results of operations for the interim periods are not necessarily indicative of the operating results for the full fiscal year or any future periods.
	Recent Accounting Pronouncements
	In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers. The amendment requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU 2014-09 will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. ASU 2014-09 is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. We expect to adopt this guidance as of January 1, 2017. Early application is not permitted. ASU 2014-09 permits the use of either the retrospective or cumulative effect transition method. We are currently evaluating the effect that ASU 2014-09 will have on our financial statements and related disclosures. We have not yet selected a transition method nor have we determined the effect of the standard on our ongoing financial reporting.
	On April 1, 2015, the FASB voted to propose to defer the effective date of ASU 2014-09 by one year. Based on the FASB’s proposed decision, ASU 2014-09 will apply to annual reporting periods beginning after December 15, 2017, including interim reporting periods within annual reporting periods beginning after December 15, 2017. Additionally, the FASB decided to permit early adoption, but not before the original effective date (that is, annual periods beginning after December 15, 2016). The FASB plans to expose its decisions for a thirty day public comment period in a proposed ASU which is expected to be issued sometime during the second quarter of 2015.
	In January 2015, the FASB issued ASU 2015-01, Income Statement – Extraordinary and Unusual Items. ASU 2015-01 eliminates from GAAP the concept of extraordinary items. As a result, an entity will no longer be required to separately present an extraordinary item on its statement of operations, net of tax, after income from continuing operations, or disclose income taxes and net income per share data applicable to an extraordinary item. However, ASU 2015-01 will still retain the presentation and disclosure guidance for items that are unusual in nature and occur infrequently. ASU 2015-01 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. Early adoption is permitted provided the guidance is applied from the beginning of the fiscal year of adoption. We do not expect the adoption of this standard to have a material impact on our financial statements, absent any material transactions in future periods that would qualify for extraordinary item presentation under the prior guidance.
	In April 2015, the FASB issued ASU 2015-03, Interest – Imputation of Interest. ASU 2015-03 require that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by the amendments in this update. For public entities, ASU 2015-03 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. We do not expect the adoption of this standard to have a material impact on our financial statements.
	Also in April 2015, the FASB issued ASU 2015-05, Intangibles – Goodwill and Other- Internal-Use Software. ASU 2015-05 provides guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. ASU 2015-05 does not change GAAP for customer’s accounting for service contracts. For public entities, ASU 2015-05 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. We do not expect the adoption of this standard to have a material impact on our financial statements.

Note_2_Goodwill_and_Other_Inta

Note 2 - Goodwill and Other Intangible Assets	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets Disclosure [Text Block]	Note 2 — Goodwill and Other Intangible Assets
	Goodwill as of March 31, 2015 and December 31, 2014 of $12.8 million was the result of our acquisition of Pump Engineering, LLC in December 2009. During the three months ended March 31, 2015, there were no changes in the recognized amount of goodwill, and there has been no impairment of goodwill to date.
	The components of identifiable other intangible assets, all of which are finite-lived, as of the dates indicated were as follows (in thousands):
		31-Mar-15
		Gross		Accumulated			Accumulated			Net
		Carrying		Amortization			Impairment			Carrying
		Amount					Losses			Amount
	Developed technology	$	6,100	$	(3,253	)	$	—		$	2,847
	Non-compete agreements		1,310		(1,310	)		—			—
	Backlog		1,300		(1,300	)		—			—
	Trademarks		1,200		(180	)		(1,020	)		—
	Customer relationships		990		(990	)		—			—
	Patents		585		(383	)		(42	)		160
	Total	$	11,485	$	(7,416	)	$	(1,062	)	$	3,007
		31-Dec-14
		Gross		Accumulated			Accumulated			Net
		Carrying		Amortization			Impairment			Carrying
		Amount					Losses			Amount
	Developed technology	$	6,100	$	(3,101	)	$	—		$	2,999
	Non-compete agreements		1,310		(1,310	)		—			—
	Backlog		1,300		(1,300	)		—			—
	Trademarks		1,200		(180	)		(1,020	)		—
	Customer relationships		990		(990	)		—			—
	Patents		585		(376	)		(42	)		167
	Total	$	11,485	$	(7,257	)	$	(1,062	)	$	3,166
	Accumulated impairment losses at March 31, 2015 include a $1.0 million impairment loss from 2012 for trademarks, a $31,000 loss for patents from 2007, and an $11,000 loss for patents from 2010.

Note_3_Loss_per_Share

Note 3 - Loss per Share	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Earnings Per Share [Text Block]	Note 3 — Loss per Share
	Basic and diluted net loss per share is based on the weighted average number of common shares outstanding during the period. Potential dilutive securities are excluded from the calculation of loss per share, as their inclusion would be anti-dilutive.
	The following table shows the computation of basic and diluted loss per share (in thousands, except per share data):
		Three Months Ended
		March 31,
		2015			2014
	Numerator:
	Net loss	$	(8,283	)	$	(3,683	)
	Denominator:
	Basic and diluted weighted average common shares outstanding		51,948			51,446
	Basic and diluted net loss per share	$	(0.16	)	$	(0.07	)
	The following potential common shares were excluded from the computation of diluted loss per share because their effect would have been anti-dilutive (in thousands):
		Three months Ended
		March 31,
		2015			2014
	Stock options		7,864			7,297
	Warrants		200			600

Note_4_Other_Financial_Informa

Note 4 - Other Financial Information	3 Months Ended
	Mar. 31, 2015
Disclosure Text Block Supplement [Abstract]
Additional Financial Information Disclosure [Text Block]	Note 4 — Other Financial Information
	Restricted Cash
	We have pledged cash in connection with stand-by letters of credit. We have deposited corresponding amounts into money market and non-interest bearing accounts at two financial institutions for these items as follows (in thousands):
		March 31,			December 31,
		2015			2014
	Collateral for stand-by letters of credit	$	2,263		$	2,623
	Current restricted cash	$	2,263		$	2,623
	Collateral for stand-by letters of credit	$	2,126		$	2,850
	Non-current restricted cash	$	2,126		$	2,850
	Total restricted cash	$	4,389		$	5,473
	Inventories
	Our inventories are stated at the lower of cost (using the first-in, first out “FIFO” method) or market and consisted of the following (in thousands):
		March 31,			December 31,
		2015			2014
	Raw materials	$	2,927		$	2,903
	Work in process		2,430			1,915
	Finished goods		3,977			3,386
	Inventories	$	9,334		$	8,204
	Prepaid and Other Current Assets
	Prepaid expenses and other current assets consisted of the following (in thousands):
		March 31,			December 31,
		2015			2014
	Interest receivable	$	64		$	112
	Supplier advances		211			107
	Other prepaid expenses and current assets		888			1,098
	Total prepaid and other current assets	$	1,163		$	1,317
	Accrued Expenses and Other Current Liabilities
	Accrued expenses and other current liabilities consisted of the following (in thousands):
		March 31,			December 31,
		2015			2014
	Payroll and commissions payable	$	3,085		$	3,116
	Accrued legal expenses		2,225			1,734
	Other accrued expenses and current liabilities		1,779			2,254
	Accrued R&D expenses		153			1,323
	Accrued expenses and other current liabilities	$	7,242		$	8,427
	Accumulated Other Comprehensive Loss
	Changes in accumulated other comprehensive loss by component for the quarter ended March 31, 2015 were as follows (in thousands):
		Foreign			Unrealized			Total Accumulated
		Currency			Gains (Losses)			Other
		Translation			on			Comprehensive
		Adjustments Net of Tax Benefit			Investments			Loss
	Balance, December 31, 2014	$	(67	)	$	(6	)	$	(73	)
	Net other comprehensive income		31			3			34
	Balance, March 31, 2015	$	(36	)	$	(3	)	$	(39	)
	There were no reclassifications of amounts out of accumulated other comprehensive loss, as there have been no sales of securities or translation adjustments that impacted other comprehensive loss during the quarter. The tax impact of the changes in accumulated other comprehensive loss were not material.

Note_5_Investments

Note 5 - Investments	3 Months Ended
	Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	Note 5 — Investments
	Our short-term and long-term investments are all classified as available-for-sale. There were no sales of available-for-sale securities during the quarter ended March 31, 2015.
	Available-for-sale securities as of the dates indicated consisted of the following (in thousands):
		31-Mar-15
		Amortized Cost		Gross Unrealized Holding Gains			Gross Unrealized Holding Losses			Fair Value
	Short-term investments:
	Corporate notes and bonds	$	8,325	$	2		$	(4	)	$	8,323
	Total short-term investments	$	8,325	$	2		$	(4	)	$	8,323
	Long-term investments:
	Corporate notes and bonds	$	266	$	—		$	(1	)	$	265
	Total long-term investments	$	266	$	—		$	(1	)	$	265
	Total available-for-sale securities	$	8,591	$	2		$	(5	)	$	8,588
		31-Dec-14
		Amortized		Gross Unrealized Holding Gains			Gross Unrealized Holding Losses			Fair Value
		Cost
	Short-term investments
	State and local government obligations	$	225	$	—		$	—		$	225
	Corporate notes and bonds		12,851		4			(8	)		12,847
	Total short-term investments	$	13,076	$	4		$	(8	)	$	13,072
	Long-term investments
	Corporate notes and bonds		268		—			(1	)		267
	Total long-term investments	$	268	$	—		$	(1	)	$	267
	Total investments	$	13,344	$	4		$	(9	)	$	13,339
	Gross unrealized losses and fair values of our investments in an unrealized loss position as of the dates indicated, aggregated by investment category and length of time that the security has been in a continuous loss position, were as follows (in thousands):
		31-Mar-15
		Less than 12 months					12 months or greater						Total
		Fair Value		Gross Unrealized Losses			Fair Value			Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
	Corporate notes and bonds	$	3,847	$	(3	)	$	1,197		$	(2	)	$	5,044	$	(5	)
	Total	$	3,847	$	(3	)	$	1,197		$	(2	)	$	5,044	$	(5	)
		31-Dec-14
		Less than 12 months					12 months or greater						Total
		Fair Value		Gross Unrealized Losses			Fair Value			Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
	Corporate notes and bonds	$	5,085	$	(6	)	$	1,205		$	(3	)	$	6,290	$	(9	)
	Total	$	5,085	$	(6	)	$	1,205		$	(3	)	$	6,290	$	(9	)
	Expected maturities can differ from contractual maturities because borrowers may have the right to prepay obligations without prepayment penalties. The amortized cost and fair value of available-for-sale securities that had stated maturities as of March 31, 2015 are shown below by contractual maturity (in thousands):
		31-Mar-15
		Amortized Cost		Fair Value
	Due after one year through three years	$	8,591	$	8,588
	Total available-for-sale securities	$	8,591	$	8,588

Note_6_LongTerm_Debt_and_Lines

Note 6 - Long-Term Debt and Lines of Credit	3 Months Ended
	Mar. 31, 2015
Debt Disclosure [Abstract]
Debt Disclosure [Text Block]	Note 6 — Long-Term Debt and Lines of Credit
	Debt
	In March 2015, we entered into a loan agreement with a financial institution for a $55,000 fixed-rate installment loan carrying an annual interest rate of 6.35%. The loan is payable in equal monthly installments and matures on April 2, 2020. The note is secured by the asset purchased.
	Long-term debt consisted of the following (in thousands)
		March 31,			December 31,
		2015			2014
	Loan payable	$	55		$	—
	Less: current portion		(11	)		—
	Total long-term debt	$	44		$	—
	Future minimum principal payments due under long-term debt arrangements consist of the following (in thousands):
		March 31,
		2015
	2015 (remaining 9 months)	$	7
	2016		11
	2017		11
	2018		11
	2019		11
	Thereafter		4
	Total debt	$	55
	Lines of Credit
	In June 2012, we entered into a loan agreement (the “2012 Agreement”) with a financial institution. The 2012 Agreement provides for a total available credit line of $16.0 million. Under the 2012 Agreement, we are allowed to draw advances not to exceed, at any time, $10.0 million as revolving loans. The total stand-by letters of credit issued under the 2012 Agreement may not exceed the lesser of the $16.0 million credit line or the credit line minus all outstanding revolving loans. At no time may the aggregate of the revolving loans and stand-by letters of credit exceed the total available credit line of $16.0 million. Revolving loans may be in the form of a base rate loan that bears interest equal to the prime rate plus 0% or a Eurodollar loan that bears interest equal to the adjusted LIBO rate plus 1.25%. Stand-by letters of credit are subject to customary fees and expenses for issuance or renewal. The unused portion of the credit facility is subject to a facility fee in an amount equal to 0.25% per annum of the average unused portion of the revolving line. The 2012 Agreement also requires us to maintain a cash collateral balance equal to 101% of all outstanding advances and all outstanding stand-by letters of credit collateralized by the line of credit. The 2012 Agreement matures in June 2015 and is collateralized by substantially all of our assets. As of March 31, 2015 and December 31, 2014, there were no advances drawn under the 2012 Agreement. Stand-by letters of credit collateralized under the 2012 Agreement totaled $3.1 million as of March 31, 2015 and December 31, 2014. Total cash restricted related to these stand-by letters of credit totaled $3.2 million and $3.1 million as of March 31, 2015 and December 31, 2014, respectively.
	We are subject to certain financial and administrative covenants under the 2012 Agreement. As of March 31, 2015, we were in compliance with these covenants.
	In 2009, we entered into a loan and security agreement (the “2009 Agreement”) with another financial institution. The 2009 Agreement, as amended, provided a total available credit line of $16.0 million. Under the 2009 Agreement, we were allowed to draw advances of up to $10.0 million on a revolving line of credit or utilize up to $15.9 million as collateral for stand-by letters of credit, provided that the aggregate of the outstanding advances and collateral did not exceed the total available credit line of $16.0 million. Advances under the revolving line of credit incurred interest based on a prime rate index or LIBOR plus 1.375%. The 2009 Agreement, as amended, also required us to maintain cash collateral balances equal to at least 101% of the face amount of all outstanding stand-by letters of credit collateralized by the line of credit and 100% of the amount of all outstanding advances. The amended 2009 Agreement expired in May 2012, at which time we became required to maintain a cash collateral balance equal to at least 105% of the face amount of all outstanding stand-by letters of credit collateralized by the line of credit. There were no advances drawn under the 2009 Agreement’s credit line at the time it expired. Remaining stand-by letters of credit issued under the 2009 Agreement totaled $1.2 million and $2.3 million as of March 31, 2015 and December 31, 2014, respectively. Total cash restricted related to these stand-by letters of credit totaled $1.2 million and $2.4 million as of March 31, 2015 and December 31, 2014, respectively.

Note_7_Equity

Note 7 - Equity	3 Months Ended
	Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	Note 7 — Equity
	Share-Based Compensation Expense
	For the three months ended March 31, 2015 and 2014, we recognized share-based compensation expense related to employees and consultants as follows (in thousands):
		Three Months Ended
		March 31,
		2015		2014
	Cost of revenue	$	35	$	22
	General and administrative		897		329
	Sales and marketing		101		153
	Research and development		107		77
	Total share-based compensation expense	$	1,140	$	581
	As of March 31, 2015, total unrecognized compensation cost related to non-vested share-based awards, net of estimated forfeitures, was $4.8 million, which is expected to be recognized as expense over a weighted average period of approximately 3.01 years.
	In February 2015, we granted 344,090 stock options to our non-employee directors. The vesting start date for options granted to incumbent non-employee directors was June 20, 2014, the date of our last annual meeting. The vesting start date for options granted to newly appointed non-employee directors was the date of grant. The options become fully vested on June 19, 2015, the date of our next annual meeting; have an exercise price of $3.53 per share, as determined on the date of grant; and expire 10 years from the grant date. The total compensation cost associated with these option grants will be recognized over the period from the grant date in February 2015 (which was determined to be the service inception date) to the vesting end date in June 2015. Accordingly, the first quarter of 2015 includes compensation expense from the service inception date through March 31, 2015.
	In March 2015, we granted 1,415,739 stock options to certain officers and other employees. The options vest over a four-year period, have an exercise price of $2.75 per share, and expire 10 years from the grant date.
	In connection with the resignation of Mr. Thomas S. Rooney, Jr. as President and Chief Executive Officer, additional stock based compensation of approximately $170,000 was recorded in the first quarter of 2015 related to the accelerated vesting of options previously granted to Mr. Rooney.

Note_8_Income_Taxes

Note 8 - Income Taxes	3 Months Ended
	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	Note 8 — Income Taxes
	The effective tax rate for the three months ended March 31, 2015 and 2014 was (1.0%) and (1.8%), respectively. As of December 31, 2014, a full valuation allowance of approximately $20.4 million had been established to reduce our deferred income tax assets to the amount expected to be realized. As such, no tax benefit related to our pre-tax loss was recognized for the three months ended March 31, 2015, as there was no change in our assessment of the amount of deferred income tax assets expected to be realized.

Note_9_Commitments_and_Conting

Note 9 - Commitments and Contingencies	3 Months Ended
	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Text Block]	Note 9 — Commitments and Contingencies
	Operating Lease Obligations
	We lease facilities under fixed non-cancellable operating leases that expire on various dates through November 2019. Future minimum lease payments consist of the following (in thousands):
		March 31,
		2015
	2015 (remaining nine months)	$	1,172
	2016		1,576
	2017		1,567
	2018		1,591
	2019		1,398
	Total future minimum lease payments	$	7,304
	Product Warranty
	The following table summarizes the activity related to the product warranty liability during the three months ended March 31, 2015 and 2014 (in thousands):
		Three Months Ended
		March 31,
		2015			2014
	Balance, beginning of period	$	755		$	709
	Warranty costs charged to cost of revenue		21			3
	Utilization of warranty		(20	)		(7	)
	Balance, end of period	$	756		$	705
	Purchase Obligations
	We enter into purchase order arrangements with our vendors. As of March 31, 2015, there were open purchase orders for which we had not yet received the related goods or services. These arrangements are subject to change based on our sales demand forecasts, and we have the right to cancel the arrangements prior to the date of delivery. As of March 31, 2015, we had approximately $2.3 million of cancellable open purchase order arrangements related primarily to materials and parts.
	Guarantees
	We enter into indemnification provisions under our agreements with other companies in the ordinary course of business, typically with customers. Under these provisions, we generally indemnify and hold harmless the indemnified party for losses suffered or incurred by the indemnified party as a result of our activities, generally limited to personal injury and property damage caused by our employees at a customer’s desalination plant in proportion to the employee’s percentage of fault for the accident. Damages incurred for these indemnifications would be covered by our general liability insurance to the extent provided by the policy limitations. We have not incurred material costs to defend lawsuits or settle claims related to these indemnification agreements. As a result, the estimated fair value of these agreements is not material. Accordingly, we have no liabilities recorded for these agreements as of March 31, 2015 and December 31, 2014.
	In certain cases, we issue warranty and product performance guarantees to our customers for amounts ranging from 5% to 10% of the total sales agreement to endorse the execution of product delivery and the warranty of design work, fabrication, and operating performance. These guarantees, generally in the form of stand-by letters of credit or bank guarantees secured by stand-by letters of credit, typically remain in place for periods ranging up to 24 months and in some cases up to 68 months, and relate to the underlying product warranty period. The stand-by letters of credit are collateralized by restricted cash and our credit facility. Of the $4.3 million in outstanding stand-by letters of credit at March 31, 2015, $1.2 million was issued under the 2009 Agreement and $3.1 million was issued under the 2012 Agreement. The stand-by letters of credit outstanding at March 31, 2015 were collateralized by restricted cash of $4.4 million.
	Litigation
	We are a defendant in a claim made by a vendor related to a supply agreement. This lawsuit was filed on December 14, 2011, entitled “Morgan Technical Ceramics Auburn, Inc. v. Energy Recovery, Inc.” in the Alameda County Superior Court of California. In 2008, we entered into a supply agreement with the vendor to manage the cost and availability of key raw materials and components. The agreement was amended in 2010. Under the terms of the amended agreement, we committed to future minimum annual purchases of raw materials and components through 2013. If annual purchase commitments were not met, a penalty of approximately 35% of the remaining open annual minimum purchase requirement could be assessed by the vendor. In June 2011, due to ongoing quality issues, we terminated the agreement on the basis of a material breach by the vendor. On February 19, 2014, the court determined that the plaintiffs had indeed provided the Company with defective materials and components, but that such breach did not reach a level of materiality warranting the termination of the supply agreement. On December 15, 2014, the court held partial evidentiary hearings on the parties’ respective damages. After the hearing was rescheduled, the parties agreed upon the methodology of the calculation for the respective claims for damages. On March 13, 2015, the Court issued a statement of decision wherein it awarded the plaintiff liquidated damages and prejudgment interest and unpaid accounts receivables and prejudgment interest. The total award of $1.9 million has been accrued in the accompanying condensed consolidated financial statements.
	In April 2011, we filed a lawsuit entitled Energy Recovery Inc. v. Leif J. Hauge; Isobaric Strategies, Inc.; Tristan Nillo; and James Coyle in Alameda County Superior Court of California alleging, among other things, misappropriation of the Company's trade secrets. On December 5, 2013, a jury determined that the Company had not proven the alleged misappropriation of trade secrets. The Company has filed an appeal challenging certain rulings during the trial proceedings.
	On September 10, 2014, the Company terminated the employment of its Senior Vice President, Sales, Borja Blanco, on the basis of breach of duty of trust and conduct leading to conflict of interest. On October 3, 2014, Mr. Blanco filed a labor claim against ERI Iberia in Madrid, Spain alleging breach of contract and termination without cause. The claim seeks wages (salary and bonus) of €567,000 and alleged stock option gains of €630,000. At this time, the Company has not determined that an award to Mr. Blanco is probable. The matter has been delayed until November 2015.
	In January 2015, two stockholder class action complaints were filed against the Company in the Northern District of California, on behalf of Energy Recovery stockholders under the captions, Joseph Sabatino v. Energy Recovery, Inc. et al. and Thomas C. Mowdy v. Energy Recovery, Inc. et al. The complaints allege violations of Section 10(b), Rule 10b-5, and Section 20(a) of the Securities Exchange Act of 1934 and seek the recovery of unspecified monetary damages. We are not able to estimate the possible loss, if any, due to the early state of this matter and the Company has not been served as of yet with these complaints.

Note_10_Business_Segment_and_G

Note 10 - Business Segment and Geographic Information	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
Segment Reporting Disclosure [Text Block]	Note 10 — Business Segment and Geographic Information
	We manufacture and sell high-efficiency energy recovery devices and pumps as well as related services under one reportable segment. Our chief operating decision-maker is the chief executive officer (“CEO”). The CEO reviews financial information presented on a consolidated basis for purposes of making operating decisions and assessing financial performance. Accordingly, we have concluded that we have one reportable segment.
	The following geographic information includes net revenue to our domestic and international customers based on the customers’ requested delivery locations, except for certain cases in which the customer directed us to deliver our products to a location that differs from the known ultimate location of use. In such cases, the ultimate location of use, rather than the delivery location, is reflected in the table below (in thousands, except percentages):
			Three Months Ended
			March 31,
			2015			2014
	Domestic revenue		$	264		$	349
	International revenue			5,600			3,548
	Total revenue		$	5,864		$	3,897
	Revenue by country:
	Egypt			22	%		3	%
	Spain			13			9
	Israel			*			13
	United States			5			9
	Others **			60			66
	Total			100	%		100	%
	*	Less than 1%.
	**	Includes remaining countries not separately disclosed. No country in this line item accounted for more than 10% of our net revenue during the periods presented.
	All of our long-lived assets were located in the United States at March 31, 2015 and December 31, 2014.

Note_11_Concentrations

Note 11 - Concentrations	3 Months Ended
	Mar. 31, 2015
Risks and Uncertainties [Abstract]
Concentration Risk Disclosure [Text Block]	Note 11 — Concentrations
	Customers accounting for 10% or more of our accounts receivable and unbilled receivables were as follows:
			March 31,			December 31,
			2015			2014
	Customer A			21	%		11	%
	Customer B			13	%		5	%
	Customer C			13	%		32	%
	Revenue from customers representing 10% or more of net revenue varies from period to period. For the periods indicated, customers representing 10% or more of net revenue were:
			Three Months Ended
			March 31,
			2015			2014
	Customer D			12	%		*
	Customer E			12	%		2	%
	Customer F			2	%		16	%
	Customer G			*			10	%
	*	Less than 1% or none..

Note_12_Fair_Value_Measurement

Note 12 - Fair Value Measurements	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Text Block]	Note 12 — Fair Value Measurements
	The authoritative guidance for measuring fair value provides a hierarchy that prioritizes the inputs to valuation techniques used in measuring fair value as follows:
	Level 1 — Quoted prices (unadjusted) in active markets for identical assets or liabilities;
	Level 2 — Inputs other than quoted prices included within Level 1 that are either directly or indirectly observable; and
	Level 3 — Unobservable inputs in which little or no market activity exists, therefore requiring an entity to develop its own assumptions that market participants would use in pricing.
	The carrying values of cash and cash equivalents, restricted cash, accounts receivable, unbilled receivables, accounts payable, and other accrued expenses approximate fair value due to the short-term maturity of those instruments. For our investments in available-for-sale securities, if quoted prices in active markets for identical investments are not available to determine fair value (Level 1), then we use quoted prices for similar assets or inputs other than quoted prices that are observable either directly or indirectly (Level 2). The investments included in Level 2 consist primarily of corporate, and agency obligations.
	The fair value of financial assets and liabilities measured on a recurring basis for the indicated periods was as follows (in thousands):
		March 31,		Level 1		Level 2		Level 3
		2015		Inputs		Inputs		Inputs
	Assets:
	Short-term available-for-sale securities	$	8,323	$	—	$	8,323	$	—
	Long-term available-for-sale securities		265		—		265		—
	Total assets	$	8,588	$	—	$	8,588	$	—
		December 31,		Level 1		Level 2		Level 3
		2014		Inputs		Inputs		Inputs
	Assets:
	Short-term available-for-sale securities	$	13,072	$	—	$	13,072	$	—
	Long-term available-for-sale securities		267		—		267		—
	Total assets	$	13,339	$	—	$	13,339	$	—

Note_13_Subsequent_Events

Note 13 - Subsequent Events	3 Months Ended
	Mar. 31, 2015
Subsequent Events [Abstract]
Subsequent Events [Text Block]	Note 13 — Subsequent Events
	On April 9, 2015, Ms. Audrey Bold resigned as Energy Recovery’s Chief Marketing Officer. If Ms. Bold provides a general release, the Company has agreed to provide her with the following benefits: (1) salary continuation and health benefits for a period of six months; and (2) continued vesting of granted options during the six month period, which will be exercisable consistent with the Company’s Amended and Restated 2008 Equity Incentive Plan.
	On April 24, 2015, the Board of Directors appointed Mr. Joel Gay as President and Chief Executive Officer and as a member of the Board of Directors effective immediately. Mr. Gay has served as the Company’s Chief Financial Officer since June 2014.
	On April 24, 2015, Mr. Paul Cook, Mr. Fred Olav Johannessen, and Dr. Marie Elisabeth Patẻ-Cornell, informed the Board of Directors of the Company of their intent not to stand for re-election at the Company’s next annual meeting of stockholders. Their decision not to stand for re-election is not the result of a disagreement with the Company known to an executive officer of the Company, or any matter relating to the Company’s operations, policies, or practices.
	On April 30, 2015, the Board of Directors appointed Ms. Sharon Smith-Lenox as Corporate Controller and Chief Accounting Officer. Ms. Smith-Lenox joined the Company in February 2013 as Controller. Ms. Smith-Lenox holds a M.A. in International Relations from the University of California, Berkeley, a B.A. in International Relations from Long Island University, and a B.S. in Accounting from the California State University, East Bay. Ms. Smith-Lenox is a certified public accountant (Inactive).

Accounting_Policies_by_Policy_

Accounting Policies, by Policy (Policies)	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Use of Estimates, Policy [Policy Text Block]	Use of Estimates
	The preparation of condensed consolidated financial statements in conformity with U.S. generally accepted accounting principles (“U.S. GAAP”) requires our management to make judgments, assumptions, and estimates that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Our more significant estimates and judgments that we believe are the most critical to aid in fully understanding and evaluating our reported financial results are revenue recognition; allowance for doubtful accounts; allowance for product warranty; valuation of stock options; valuation and impairment of goodwill, long-lived assets, and acquired intangible assets; useful lives for depreciation and amortization; valuation adjustments for excess and obsolete inventory; and deferred taxes and valuation allowances on deferred tax assets. Actual results could differ materially from those estimates.
Basis of Accounting, Policy [Policy Text Block]	Basis of Presentation
	The condensed consolidated financial statements include the accounts of Energy Recovery, Inc. and its wholly-owned subsidiaries. All significant intercompany accounts and transactions have been eliminated.
	The accompanying condensed consolidated financial statements have been prepared by us, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. The December 31, 2014 condensed consolidated balance sheet was derived from audited financial statements, and may not include all disclosures required by U.S. GAAP; however, we believe that the disclosures are adequate to make the information presented not misleading. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto for the fiscal year ended December 31, 2014 included in our Annual Report on Form 10-K filed with the SEC on March 6, 2015.
	In the opinion of management, all adjustments, consisting of only normal recurring adjustments that are necessary to present fairly the financial position, results of operations, and cash flows for the interim periods, have been made. The results of operations for the interim periods are not necessarily indicative of the operating results for the full fiscal year or any future periods.
New Accounting Pronouncements, Policy [Policy Text Block]	Recent Accounting Pronouncements
	In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers. The amendment requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU 2014-09 will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. ASU 2014-09 is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. We expect to adopt this guidance as of January 1, 2017. Early application is not permitted. ASU 2014-09 permits the use of either the retrospective or cumulative effect transition method. We are currently evaluating the effect that ASU 2014-09 will have on our financial statements and related disclosures. We have not yet selected a transition method nor have we determined the effect of the standard on our ongoing financial reporting.
	On April 1, 2015, the FASB voted to propose to defer the effective date of ASU 2014-09 by one year. Based on the FASB’s proposed decision, ASU 2014-09 will apply to annual reporting periods beginning after December 15, 2017, including interim reporting periods within annual reporting periods beginning after December 15, 2017. Additionally, the FASB decided to permit early adoption, but not before the original effective date (that is, annual periods beginning after December 15, 2016). The FASB plans to expose its decisions for a thirty day public comment period in a proposed ASU which is expected to be issued sometime during the second quarter of 2015.
	In January 2015, the FASB issued ASU 2015-01, Income Statement – Extraordinary and Unusual Items. ASU 2015-01 eliminates from GAAP the concept of extraordinary items. As a result, an entity will no longer be required to separately present an extraordinary item on its statement of operations, net of tax, after income from continuing operations, or disclose income taxes and net income per share data applicable to an extraordinary item. However, ASU 2015-01 will still retain the presentation and disclosure guidance for items that are unusual in nature and occur infrequently. ASU 2015-01 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. Early adoption is permitted provided the guidance is applied from the beginning of the fiscal year of adoption. We do not expect the adoption of this standard to have a material impact on our financial statements, absent any material transactions in future periods that would qualify for extraordinary item presentation under the prior guidance.
	In April 2015, the FASB issued ASU 2015-03, Interest – Imputation of Interest. ASU 2015-03 require that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by the amendments in this update. For public entities, ASU 2015-03 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. We do not expect the adoption of this standard to have a material impact on our financial statements.
	Also in April 2015, the FASB issued ASU 2015-05, Intangibles – Goodwill and Other- Internal-Use Software. ASU 2015-05 provides guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. ASU 2015-05 does not change GAAP for customer’s accounting for service contracts. For public entities, ASU 2015-05 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. We do not expect the adoption of this standard to have a material impact on our financial statements.

Note_2_Goodwill_and_Other_Inta1

Note 2 - Goodwill and Other Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets [Table Text Block]		31-Mar-15
		Gross		Accumulated			Accumulated			Net
		Carrying		Amortization			Impairment			Carrying
		Amount					Losses			Amount
	Developed technology	$	6,100	$	(3,253	)	$	—		$	2,847
	Non-compete agreements		1,310		(1,310	)		—			—
	Backlog		1,300		(1,300	)		—			—
	Trademarks		1,200		(180	)		(1,020	)		—
	Customer relationships		990		(990	)		—			—
	Patents		585		(383	)		(42	)		160
	Total	$	11,485	$	(7,416	)	$	(1,062	)	$	3,007
		31-Dec-14
		Gross		Accumulated			Accumulated			Net
		Carrying		Amortization			Impairment			Carrying
		Amount					Losses			Amount
	Developed technology	$	6,100	$	(3,101	)	$	—		$	2,999
	Non-compete agreements		1,310		(1,310	)		—			—
	Backlog		1,300		(1,300	)		—			—
	Trademarks		1,200		(180	)		(1,020	)		—
	Customer relationships		990		(990	)		—			—
	Patents		585		(376	)		(42	)		167
	Total	$	11,485	$	(7,257	)	$	(1,062	)	$	3,166

Note_3_Loss_per_Share_Tables

Note 3 - Loss per Share (Tables)	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]		Three Months Ended
		March 31,
		2015			2014
	Numerator:
	Net loss	$	(8,283	)	$	(3,683	)
	Denominator:
	Basic and diluted weighted average common shares outstanding		51,948			51,446
	Basic and diluted net loss per share	$	(0.16	)	$	(0.07	)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]		Three months Ended
		March 31,
		2015			2014
	Stock options		7,864			7,297
	Warrants		200			600

Note_4_Other_Financial_Informa1

Note 4 - Other Financial Information (Tables)	3 Months Ended
	Mar. 31, 2015
Disclosure Text Block Supplement [Abstract]
Schedule of Restricted Cash and Cash Equivalents [Table Text Block]		March 31,			December 31,
		2015			2014
	Collateral for stand-by letters of credit	$	2,263		$	2,623
	Current restricted cash	$	2,263		$	2,623
	Collateral for stand-by letters of credit	$	2,126		$	2,850
	Non-current restricted cash	$	2,126		$	2,850
	Total restricted cash	$	4,389		$	5,473
Schedule of Inventory, Current [Table Text Block]		March 31,			December 31,
		2015			2014
	Raw materials	$	2,927		$	2,903
	Work in process		2,430			1,915
	Finished goods		3,977			3,386
	Inventories	$	9,334		$	8,204
Schedule of Other Current Assets [Table Text Block]		March 31,			December 31,
		2015			2014
	Interest receivable	$	64		$	112
	Supplier advances		211			107
	Other prepaid expenses and current assets		888			1,098
	Total prepaid and other current assets	$	1,163		$	1,317
Schedule of Accrued Liabilities [Table Text Block]		March 31,			December 31,
		2015			2014
	Payroll and commissions payable	$	3,085		$	3,116
	Accrued legal expenses		2,225			1,734
	Other accrued expenses and current liabilities		1,779			2,254
	Accrued R&D expenses		153			1,323
	Accrued expenses and other current liabilities	$	7,242		$	8,427
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]		Foreign			Unrealized			Total Accumulated
		Currency			Gains (Losses)			Other
		Translation			on			Comprehensive
		Adjustments Net of Tax Benefit			Investments			Loss
	Balance, December 31, 2014	$	(67	)	$	(6	)	$	(73	)
	Net other comprehensive income		31			3			34
	Balance, March 31, 2015	$	(36	)	$	(3	)	$	(39	)

Note_5_Investments_Tables

Note 5 - Investments (Tables)	3 Months Ended
	Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Available-for-sale Securities [Table Text Block]		31-Mar-15
		Amortized Cost		Gross Unrealized Holding Gains			Gross Unrealized Holding Losses			Fair Value
	Short-term investments:
	Corporate notes and bonds	$	8,325	$	2		$	(4	)	$	8,323
	Total short-term investments	$	8,325	$	2		$	(4	)	$	8,323
	Long-term investments:
	Corporate notes and bonds	$	266	$	—		$	(1	)	$	265
	Total long-term investments	$	266	$	—		$	(1	)	$	265
	Total available-for-sale securities	$	8,591	$	2		$	(5	)	$	8,588
		31-Dec-14
		Amortized		Gross Unrealized Holding Gains			Gross Unrealized Holding Losses			Fair Value
		Cost
	Short-term investments
	State and local government obligations	$	225	$	—		$	—		$	225
	Corporate notes and bonds		12,851		4			(8	)		12,847
	Total short-term investments	$	13,076	$	4		$	(8	)	$	13,072
	Long-term investments
	Corporate notes and bonds		268		—			(1	)		267
	Total long-term investments	$	268	$	—		$	(1	)	$	267
	Total investments	$	13,344	$	4		$	(9	)	$	13,339
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block]		31-Mar-15
		Less than 12 months					12 months or greater						Total
		Fair Value		Gross Unrealized Losses			Fair Value			Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
	Corporate notes and bonds	$	3,847	$	(3	)	$	1,197		$	(2	)	$	5,044	$	(5	)
	Total	$	3,847	$	(3	)	$	1,197		$	(2	)	$	5,044	$	(5	)
		31-Dec-14
		Less than 12 months					12 months or greater						Total
		Fair Value		Gross Unrealized Losses			Fair Value			Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
	Corporate notes and bonds	$	5,085	$	(6	)	$	1,205		$	(3	)	$	6,290	$	(9	)
	Total	$	5,085	$	(6	)	$	1,205		$	(3	)	$	6,290	$	(9	)
Investments Classified by Contractual Maturity Date [Table Text Block]		31-Mar-15
		Amortized Cost		Fair Value
	Due after one year through three years	$	8,591	$	8,588
	Total available-for-sale securities	$	8,591	$	8,588

Note_6_LongTerm_Debt_and_Lines1

Note 6 - Long-Term Debt and Lines of Credit (Tables)	3 Months Ended
	Mar. 31, 2015
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments [Table Text Block]		March 31,			December 31,
		2015			2014
	Loan payable	$	55		$	—
	Less: current portion		(11	)		—
	Total long-term debt	$	44		$	—
Schedule of Maturities of Long-term Debt [Table Text Block]		March 31,
		2015
	2015 (remaining 9 months)	$	7
	2016		11
	2017		11
	2018		11
	2019		11
	Thereafter		4
	Total debt	$	55

Note_7_Equity_Tables

Note 7 - Equity (Tables)	3 Months Ended
	Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]		Three Months Ended
		March 31,
		2015		2014
	Cost of revenue	$	35	$	22
	General and administrative		897		329
	Sales and marketing		101		153
	Research and development		107		77
	Total share-based compensation expense	$	1,140	$	581

Note_9_Commitments_and_Conting1

Note 9 - Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Operating Leases of Lessee Disclosure [Table Text Block]		March 31,
		2015
	2015 (remaining nine months)	$	1,172
	2016		1,576
	2017		1,567
	2018		1,591
	2019		1,398
	Total future minimum lease payments	$	7,304
Schedule of Product Warranty Liability [Table Text Block]		Three Months Ended
		March 31,
		2015			2014
	Balance, beginning of period	$	755		$	709
	Warranty costs charged to cost of revenue		21			3
	Utilization of warranty		(20	)		(7	)
	Balance, end of period	$	756		$	705

Note_10_Business_Segment_and_G1

Note 10 - Business Segment and Geographic Information (Tables)	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]		Three Months Ended
		March 31,
		2015			2014
	Domestic revenue	$	264		$	349
	International revenue		5,600			3,548
	Total revenue	$	5,864		$	3,897
	Revenue by country:
	Egypt		22	%		3	%
	Spain		13			9
	Israel		*			13
	United States		5			9
	Others **		60			66
	Total		100	%		100	%

Note_11_Concentrations_Tables

Note 11 - Concentrations (Tables)	3 Months Ended
	Mar. 31, 2015
Accounts Receivable [Member]
Note 11 - Concentrations (Tables) [Line Items]
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]		March 31,			December 31,
		2015			2014
	Customer A		21	%		11	%
	Customer B		13	%		5	%
	Customer C		13	%		32	%
Sales Revenue, Net [Member]
Note 11 - Concentrations (Tables) [Line Items]
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]		Three Months Ended
		March 31,
		2015			2014
	Customer D		12	%		*
	Customer E		12	%		2	%
	Customer F		2	%		16	%
	Customer G		*			10	%

Note_12_Fair_Value_Measurement1

Note 12 - Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]		March 31,		Level 1		Level 2		Level 3
		2015		Inputs		Inputs		Inputs
	Assets:
	Short-term available-for-sale securities	$	8,323	$	—	$	8,323	$	—
	Long-term available-for-sale securities		265		—		265		—
	Total assets	$	8,588	$	—	$	8,588	$	—
		December 31,		Level 1		Level 2		Level 3
		2014		Inputs		Inputs		Inputs
	Assets:
	Short-term available-for-sale securities	$	13,072	$	—	$	13,072	$	—
	Long-term available-for-sale securities		267		—		267		—
	Total assets	$	13,339	$	—	$	13,339	$	—

Note_1_The_Company_and_Summary1

Note 1 - The Company and Summary of Significant Accounting Policies (Details)	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Number of Subsidiaries	4

Note_2_Goodwill_and_Other_Inta2

Note 2 - Goodwill and Other Intangible Assets (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Note 2 - Goodwill and Other Intangible Assets (Details) [Line Items]
Goodwill	$12,790,000	$12,790,000
Goodwill, Period Increase (Decrease)	0
Goodwill, Impaired, Accumulated Impairment Loss	0
Finite-Lived Intangible Assets, Accumulated Impairment Losses	1,062,000	1,062,000
Trademarks from 2012 [Member]
Note 2 - Goodwill and Other Intangible Assets (Details) [Line Items]
Finite-Lived Intangible Assets, Accumulated Impairment Losses	1,000,000
Patents from 2007 [Member]
Note 2 - Goodwill and Other Intangible Assets (Details) [Line Items]
Finite-Lived Intangible Assets, Accumulated Impairment Losses	31,000
Patents from 2010 [Member]
Note 2 - Goodwill and Other Intangible Assets (Details) [Line Items]
Finite-Lived Intangible Assets, Accumulated Impairment Losses	$11,000

Note_2_Goodwill_and_Other_Inta3

Note 2 - Goodwill and Other Intangible Assets (Details) - Identifiable Intangible Assets (USD $)	Mar. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$11,485,000	$11,485,000
Accumulated Amortization	-7,416,000	-7,257,000
Accumulated Impairment Losses	-1,062,000	-1,062,000
Net Carrying Amount	3,007,000	3,166,000
Developed Technology Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	6,100,000	6,100,000
Accumulated Amortization	-3,253,000	-3,101,000
Net Carrying Amount	2,847,000	2,999,000
Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,310,000	1,310,000
Accumulated Amortization	-1,310,000	-1,310,000
Order or Production Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,300,000	1,300,000
Accumulated Amortization	-1,300,000	-1,300,000
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,200,000	1,200,000
Accumulated Amortization	-180,000	-180,000
Accumulated Impairment Losses	-1,020,000	-1,020,000
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	990,000	990,000
Accumulated Amortization	-990,000	-990,000
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	585,000	585,000
Accumulated Amortization	-383,000	-376,000
Accumulated Impairment Losses	-42,000	-42,000
Net Carrying Amount	$160,000	$167,000

Note_3_Loss_per_Share_Details_

Note 3 - Loss per Share (Details) - Computation of Basic and Diluted Loss per Share (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Numerator:
Net loss	($8,283)	($3,683)
Denominator:
Basic and diluted weighted average common shares outstanding	51,948	51,446
Basic and diluted net loss per share	($0.16)	($0.07)

Note_3_Loss_per_Share_Details_1

Note 3 - Loss per Share (Details) - Antidilutive Securities Excluded from Computation of Diluted Earnings per Share	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Equity Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities	7,864	7,297
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities	200	600

Note_4_Other_Financial_Informa2

Note 4 - Other Financial Information (Details) (USD $)	3 Months Ended
	Mar. 31, 2015
Note 4 - Other Financial Information (Details) [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	$0
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Note 4 - Other Financial Information (Details) [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Note 4 - Other Financial Information (Details) [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	$0

Note_4_Other_Financial_Informa3

Note 4 - Other Financial Information (Details) - Restricted Cash (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Restricted Cash and Cash Equivalents Items [Line Items]
Current restricted cash	$2,263	$2,623
Non-current restricted cash	2,126	2,850
Total restricted cash	4,389	5,473
Collateral for Stand-by Letters of Credit [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Current restricted cash	2,263	2,623
Non-current restricted cash	$2,126	$2,850

Note_4_Other_Financial_Informa4

Note 4 - Other Financial Information (Details) - Inventories (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Inventories [Abstract]
Raw materials	$2,927	$2,903
Work in process	2,430	1,915
Finished goods	3,977	3,386
Inventories	$9,334	$8,204

Note_4_Other_Financial_Informa5

Note 4 - Other Financial Information (Details) - Prepaid Expenses and Other Current Assets (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Prepaid Expenses and Other Current Assets [Abstract]
Interest receivable	$64	$112
Supplier advances	211	107
Other prepaid expenses and current assets	888	1,098
Total prepaid and other current assets	$1,163	$1,317

Note_4_Other_Financial_Informa6

Note 4 - Other Financial Information (Details) - Accrued Expenses and Other Current Liabilities (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Accrued Expenses and Other Current Liabilities [Abstract]
Payroll and commissions payable	$3,085	$3,116
Accrued legal expenses	2,225	1,734
Other accrued expenses and current liabilities	1,779	2,254
Accrued R&D expenses	153	1,323
Accrued expenses and other current liabilities	$7,242	$8,427

Note_4_Other_Financial_Informa7

Note 4 - Other Financial Information (Details) - Accumulated Other Comprehensive Loss (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Accumulated Other Comprehensive Loss [Abstract]
Balance - Foreign Currency Translation Adjustments Net of Tax Benefit	($67)
Balance - Unrealized Gains (Losses) on Investments	-6
Balance - Total Accumulated Other Comprehensive Loss	-73
Net other comprehensive income	31	43
Net other comprehensive income	3	2
Net other comprehensive income	34
Balance - Foreign Currency Translation Adjustments Net of Tax Benefit	-36
Balance - Unrealized Gains (Losses) on Investments	-3
Balance - Total Accumulated Other Comprehensive Loss	($39)

Note_5_Investments_Details

Note 5 - Investments (Details) (USD $)	3 Months Ended
	Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Proceeds from Sale of Available-for-sale Securities	$0

Note_5_Investments_Details_Ava

Note 5 - Investments (Details) - Available-for-Sale Securities (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$8,591	$13,344
Gross Unrealized Holding Gains	2	4
Gross Unrealized Holding Losses	-5	-9
Fair Value	8,588	13,339
Short-term Investments [Member] | Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	8,325	12,851
Gross Unrealized Holding Gains	2	4
Gross Unrealized Holding Losses	-4	-8
Fair Value	8,323	12,847
Short-term Investments [Member] | US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		225
Fair Value		225
Short-term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	8,325	13,076
Gross Unrealized Holding Gains	2	4
Gross Unrealized Holding Losses	-4	-8
Fair Value	8,323	13,072
Other Long-term Investments [Member] | Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	266	268
Gross Unrealized Holding Losses	-1	-1
Fair Value	265	267
Other Long-term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	266	268
Gross Unrealized Holding Losses	-1	-1
Fair Value	$265	$267

Note_5_Investments_Details_Gro

Note 5 - Investments (Details) - Gross Unrealized Losses and Fair Values of Investments (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Note 5 - Investments (Details) - Gross Unrealized Losses and Fair Values of Investments [Line Items]
Fair Value, Less than 12 months	$3,847	$5,085
Gross Unrealized Losses , Less than 12 months	-3	-6
Fair Value, 12 months or greater	1,197	1,205
Gross Unrealized Losses , 12 months or greater	-2	-3
Fair value, Total	5,044	6,290
Gross Unrealized Losses , Total	-5	-9
Corporate Debt Securities [Member]
Note 5 - Investments (Details) - Gross Unrealized Losses and Fair Values of Investments [Line Items]
Fair Value, Less than 12 months	3,847	5,085
Gross Unrealized Losses , Less than 12 months	-3	-6
Fair Value, 12 months or greater	1,197	1,205
Gross Unrealized Losses , 12 months or greater	-2	-3
Fair value, Total	5,044	6,290
Gross Unrealized Losses , Total	($5)	($9)

Note_5_Investments_Details_Amo

Note 5 - Investments (Details) - Amortized Cost and Fair Value of Available-for-Sale Securities (USD $)	Mar. 31, 2015
In Thousands, unless otherwise specified
Amortized Cost and Fair Value of Available-for-Sale Securities [Abstract]
Due after one year through three years	$8,591
Due after one year through three years	8,588
Total available-for-sale securities	8,591
Total available-for-sale securities	$8,588

Note_6_LongTerm_Debt_and_Lines2

Note 6 - Long-Term Debt and Lines of Credit (Details) (USD $)	0 Months Ended	1 Months Ended
	Jun. 05, 2012	Dec. 31, 2009	Mar. 31, 2015	Dec. 31, 2014	31-May-12
Note 6 - Long-Term Debt and Lines of Credit (Details) [Line Items]
Long-term Debt			$55,000
Letters of Credit Outstanding, Amount			4,300,000
Restricted Cash and Cash Equivalents			4,389,000	5,473,000
Collateral for Stand-by Letters of Credit [Member] | The 2012 Agreement [Member]
Note 6 - Long-Term Debt and Lines of Credit (Details) [Line Items]
Restricted Cash and Cash Equivalents			3,200,000	3,100,000
Collateral for Stand-by Letters of Credit [Member] | The 2009 Agreement [Member]
Note 6 - Long-Term Debt and Lines of Credit (Details) [Line Items]
Restricted Cash and Cash Equivalents			1,200,000	2,400,000
Prime Rate [Member] | The 2012 Agreement [Member] | Revolving Credit Facility [Member]
Note 6 - Long-Term Debt and Lines of Credit (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.00%
London Interbank Offered Rate (LIBOR) [Member] | The 2012 Agreement [Member] | Revolving Credit Facility [Member]
Note 6 - Long-Term Debt and Lines of Credit (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.25%
March 2015 Installment Loan [Member]
Note 6 - Long-Term Debt and Lines of Credit (Details) [Line Items]
Long-term Debt			55,000
Debt Instrument, Interest Rate, Stated Percentage			6.35%
The 2012 Agreement [Member] | Revolving Credit Facility [Member]
Note 6 - Long-Term Debt and Lines of Credit (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	10,000,000
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.25%
Long-term Line of Credit			0	0
The 2012 Agreement [Member] | Standby Letters of Credit [Member]
Note 6 - Long-Term Debt and Lines of Credit (Details) [Line Items]
Line of Credit Facility, Capacity Available for Trade Purchases	16,000,000
The 2012 Agreement [Member]
Note 6 - Long-Term Debt and Lines of Credit (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	16,000,000
Cash Collateral Balance Required by Credit Agreement	101.00%
Letters of Credit Outstanding, Amount			3,100,000	3,100,000
The 2009 Agreement [Member] | Revolving Credit Facility [Member]
Note 6 - Long-Term Debt and Lines of Credit (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		10,000,000
Debt Instrument, Basis Spread on Variable Rate		1.38%
Long-term Line of Credit					0
The 2009 Agreement [Member] | Standby Letters of Credit [Member]
Note 6 - Long-Term Debt and Lines of Credit (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		15,900,000
The 2009 Agreement [Member]
Note 6 - Long-Term Debt and Lines of Credit (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		16,000,000
Cash Collateral Balance Required by Credit Agreement					105.00%
Letters of Credit Outstanding, Amount			$1,200,000	$2,300,000
Cash Collateral Balance, Percentage of Outstanding Standby Letters of Credit		101.00%
Cash Collateral Balance, Percentage of Outstanding Advances		100.00%

Note_6_LongTerm_Debt_and_Lines3

Note 6 - Long-Term Debt and Lines of Credit (Details) - Long-Term Debt (USD $)	Mar. 31, 2015
Debt Instrument [Line Items]
Loan payable	$55,000
Less: current portion	-11,000
Total long-term debt	44,000
March 2015 Installment Loan [Member]
Debt Instrument [Line Items]
Loan payable	55,000
Less: current portion	-11,000
Total long-term debt	$44,000

Note_6_LongTerm_Debt_and_Lines4

Note 6 - Long-Term Debt and Lines of Credit (Details) - Future Minimum Principal Payments Due Under Long-Term Debt Arrangements (USD $)	Mar. 31, 2015
In Thousands, unless otherwise specified
Future Minimum Principal Payments Due Under Long-Term Debt Arrangements [Abstract]
2015 (remaining 9 months)	$7
2016	11
2017	11
2018	11
2019	11
Thereafter	4
Total debt	$55

Note_7_Equity_Details

Note 7 - Equity (Details) (USD $)	3 Months Ended	0 Months Ended	1 Months Ended
	Mar. 31, 2015	Feb. 06, 2015	Mar. 31, 2015
Note 7 - Equity (Details) [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars)	$4,800,000		4,800,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	3 years 3 days
Employee Stock Option [Member] | Non-Employee Directors [Member]
Note 7 - Equity (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period		10 years
Employee Stock Option [Member] | Certain Officers and Other Employees [Member]
Note 7 - Equity (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period			10 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			4 years
Non-Employee Directors [Member]
Note 7 - Equity (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)		344,090
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in Dollars per share)		3.53
Certain Officers and Other Employees [Member]
Note 7 - Equity (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)			1,415,739
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in Dollars per share)			2.75
Chief Executive Officer [Member]
Note 7 - Equity (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award Accelerated Compensation Cost (in Dollars)	$170,000

Note_7_Equity_Details_Sharebas

Note 7 - Equity (Details) - Share-based Compensation Expense (Employees and Consultants [Member], USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Allocated Share-based Compensation	$1,140	$581
Cost of Sales [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Allocated Share-based Compensation	35	22
General and Administrative Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Allocated Share-based Compensation	897	329
Selling and Marketing Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Allocated Share-based Compensation	101	153
Research and Development Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Allocated Share-based Compensation	$107	$77

Note_8_Income_Taxes_Details

Note 8 - Income Taxes (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Percent	-1.00%	-1.80%
Deferred Tax Assets, Valuation Allowance		$20.40
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$0

Note_9_Commitments_and_Conting2

Note 9 - Commitments and Contingencies (Details)	3 Months Ended			0 Months Ended		3 Months Ended
	Mar. 31, 2015	Mar. 31, 2015	Dec. 31, 2014	Oct. 03, 2014	Oct. 03, 2014	Mar. 31, 2015	Mar. 31, 2015	Mar. 31, 2015	Mar. 31, 2015	Mar. 31, 2015
	USD ($)	Indemnification Agreement [Member]	Indemnification Agreement [Member]	Salary and Bonus [Member]	Alleged Stock Option [Member]	Minimum [Member]	Maximum [Member]	December 2011 Case [Member]	The 2009 Agreement [Member]	The 2012 Agreement [Member]
		USD ($)	USD ($)	Mr. Borja Sanchez-Blanco [Member]	Mr. Borja Sanchez-Blanco [Member]			USD ($)	USD ($)	USD ($)
				EUR (€)	EUR (€)
Note 9 - Commitments and Contingencies (Details) [Line Items]
Unrecorded Unconditional Purchase Obligation	$2,300,000
Guarantor Obligations, Current Carrying Value		0	0
Warranty and Product Performance Guarantees as Percentage of Total Sales Agreement						5.00%	10.00%
Warranty and Product Performance Guarantees Period						24 months	68 months
Letters of Credit Outstanding, Amount	4,300,000								1,200,000	3,100,000
Restricted Cash Used to Collateralize Irrevocable Standby Letters of Credit	4,400,000
Penalty for Failure to Meet Annual Purchase Commitments	35.00%
Litigation Settlement, Amount								-1,900,000
Loss Contingency, Damages Sought, Value (in Euro)				€ 567,000	€ 630,000

Note_9_Commitments_and_Conting3

Note 9 - Commitments and Contingencies (Details) - Operating Lease Obligations (USD $)	Mar. 31, 2015
In Thousands, unless otherwise specified
Operating Lease Obligations [Abstract]
2015 (remaining nine months)	$1,172
2016	1,576
2017	1,567
2018	1,591
2019	1,398
Total future minimum lease payments	$7,304

Note_9_Commitments_and_Conting4

Note 9 - Commitments and Contingencies (Details) - Product Warranty Liability (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Product Warranty Liability [Abstract]
Balance, beginning of period	$755	$709
Warranty costs charged to cost of revenue	21	3
Utilization of warranty	-20	-7
Balance, end of period	$756	$705

Note_10_Business_Segment_and_G2

Note 10 - Business Segment and Geographic Information (Details)	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
Number of Reportable Segments	1

Note_10_Business_Segment_and_G3

Note 10 - Business Segment and Geographic Information (Details) - Revenues by Geographic Area (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015		Mar. 31, 2014
Note 10 - Business Segment and Geographic Information (Details) - Revenues by Geographic Area [Line Items]
Revenue (in Dollars)	$5,864		$3,897
Geographic Concentration Risk [Member] | EGYPT | Sales Revenue, Net [Member]
Note 10 - Business Segment and Geographic Information (Details) - Revenues by Geographic Area [Line Items]
Revenue by country	22.00%		3.00%
Geographic Concentration Risk [Member] | SPAIN | Sales Revenue, Net [Member]
Note 10 - Business Segment and Geographic Information (Details) - Revenues by Geographic Area [Line Items]
Revenue by country	13.00%		9.00%
Geographic Concentration Risk [Member] | ISRAEL | Sales Revenue, Net [Member]
Note 10 - Business Segment and Geographic Information (Details) - Revenues by Geographic Area [Line Items]
Revenue by country		[1]	13.00%
Geographic Concentration Risk [Member] | UNITED STATES | Sales Revenue, Net [Member]
Note 10 - Business Segment and Geographic Information (Details) - Revenues by Geographic Area [Line Items]
Revenue by country	5.00%		9.00%
Geographic Concentration Risk [Member] | Others [Member] | Sales Revenue, Net [Member]
Note 10 - Business Segment and Geographic Information (Details) - Revenues by Geographic Area [Line Items]
Revenue by country	60.00%	[2]	66.00%	[2]
Geographic Concentration Risk [Member] | Sales Revenue, Net [Member]
Note 10 - Business Segment and Geographic Information (Details) - Revenues by Geographic Area [Line Items]
Revenue by country	100.00%		100.00%
Domestic [Member]
Note 10 - Business Segment and Geographic Information (Details) - Revenues by Geographic Area [Line Items]
Revenue (in Dollars)	264		349
International [Member]
Note 10 - Business Segment and Geographic Information (Details) - Revenues by Geographic Area [Line Items]
Revenue (in Dollars)	$5,600		$3,548
[1]	Less than 1%.
[2]	Includes remaining countries not separately disclosed. No country in this line item accounted for more than 10% of our net revenue during the periods presented.

Note_11_Concentrations_Details

Note 11 - Concentrations (Details) - Accounts Receivable Concentrations (Customer Concentration Risk [Member], Accounts Receivable [Member])	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Customer A [Member]
Concentration Risk [Line Items]
Percentage of accounts receivable	21.00%	11.00%
Customer B [Member]
Concentration Risk [Line Items]
Percentage of accounts receivable	13.00%	5.00%
Customer C [Member]
Concentration Risk [Line Items]
Percentage of accounts receivable	13.00%	32.00%

Note_11_Concentrations_Details1

Note 11 - Concentrations (Details) - Revenue Concentrations (Customer Concentration Risk [Member], Sales Revenue, Net [Member])	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Customer D [Member]
Concentration Risk [Line Items]
Percentage of revenue	12.00%			[1]
Customer E [Member]
Concentration Risk [Line Items]
Percentage of revenue	12.00%		2.00%
Customer F [Member]
Concentration Risk [Line Items]
Percentage of revenue	2.00%	[1]	16.00%
Customer G [Member]
Concentration Risk [Line Items]
Percentage of revenue		[1]	10.00%
[1]	Less than 1% or none..

Note_12_Fair_Value_Measurement2

Note 12 - Fair Value Measurements (Details) - Fair Value of Financial Assets and Liabilities Measured on a Recurring Basis (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Note 12 - Fair Value Measurements (Details) - Fair Value of Financial Assets and Liabilities Measured on a Recurring Basis [Line Items]
Available-for-sale securities	$8,588	$13,339
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Short-term Investments [Member]
Note 12 - Fair Value Measurements (Details) - Fair Value of Financial Assets and Liabilities Measured on a Recurring Basis [Line Items]
Available-for-sale securities	8,323	13,072
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Other Long-term Investments [Member]
Note 12 - Fair Value Measurements (Details) - Fair Value of Financial Assets and Liabilities Measured on a Recurring Basis [Line Items]
Available-for-sale securities	265	267
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Note 12 - Fair Value Measurements (Details) - Fair Value of Financial Assets and Liabilities Measured on a Recurring Basis [Line Items]
Available-for-sale securities	8,588	13,339
Fair Value, Measurements, Recurring [Member] | Short-term Investments [Member]
Note 12 - Fair Value Measurements (Details) - Fair Value of Financial Assets and Liabilities Measured on a Recurring Basis [Line Items]
Available-for-sale securities	8,323	13,072
Fair Value, Measurements, Recurring [Member] | Other Long-term Investments [Member]
Note 12 - Fair Value Measurements (Details) - Fair Value of Financial Assets and Liabilities Measured on a Recurring Basis [Line Items]
Available-for-sale securities	265	267
Fair Value, Measurements, Recurring [Member]
Note 12 - Fair Value Measurements (Details) - Fair Value of Financial Assets and Liabilities Measured on a Recurring Basis [Line Items]
Available-for-sale securities	$8,588	$13,339

Note_13_Subsequent_Events_Deta

Note 13 - Subsequent Events (Details) (Subsequent Event [Member], Chief Marketing Officer [Member])	0 Months Ended
	Apr. 09, 2015
Subsequent Event [Member] | Chief Marketing Officer [Member]
Note 13 - Subsequent Events (Details) [Line Items]
Resignation Agreement and General Release, Term	6 months
Resignation Agreement and General Release, Options, Continued Vesting	6 months