Energy Recovery (ERII) 10-Q 8 May 14 2014 Q1 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	3 Months Ended
	Mar. 31, 2014	2-May-14
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'Energy Recovery, Inc.	'
Document Type	'10-Q	'
Current Fiscal Year End Date	'--12-31	'
Entity Common Stock, Shares Outstanding	'	51,509,218
Amendment Flag	'false	'
Entity Central Index Key	'0001421517	'
Entity Current Reporting Status	'Yes	'
Entity Voluntary Filers	'No	'
Entity Filer Category	'Accelerated Filer	'
Entity Well-known Seasoned Issuer	'Yes	'
Document Period End Date	31-Mar-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q1	'

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$11,437	$14,371
Restricted cash	5,157	4,311
Short-term investments	8,017	5,856
Accounts receivable, net of allowance for doubtful accounts of $263 and $241 at March 31, 2014 and December 31, 2013, respectively	17,202	15,222
Unbilled receivables	746	5,442
Inventories	8,276	4,955
Deferred tax assets, net	698	698
Prepaid expenses and other current assets	2,131	1,018
Total current assets	53,664	51,873
Restricted cash, non-current	3,210	4,468
Unbilled receivables, non-current	1,197	1,197
Long-term investments	8,810	13,694
Property and equipment, net of accumulated depreciation of $12,850 and $12,082 at March 31, 2014 and December 31, 2013, respectively	13,161	13,903
Goodwill	12,790	12,790
Other intangible assets, net	3,792	4,008
Other assets, non-current	2	2
Total assets	96,626	101,935
Current liabilities:	'	'
Accounts payable	1,639	1,209
Accrued expenses and other current liabilities	5,362	7,963
Income taxes payable	28	22
Accrued warranty reserve	705	709
Deferred revenue	830	779
Total current liabilities	8,564	10,682
Deferred tax liabilities, non-current, net	2,186	2,131
Deferred revenue, non-current	94	130
Other non-current liabilities	1,951	2,077
Total liabilities	12,795	15,020
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; 53,395,001 and 51,497,098 shares issued and outstanding at March 31, 2014, respectively; and 53,136,704 and 51,354,101 shares issued and outstanding at December 31, 2013, respectively	53	53
Additional paid-in capital	121,119	119,932
Accumulated other comprehensive loss	-62	-107
Treasury stock, at cost, 1,897,903 and 1,782,603 shares repurchased at March 31, 2014 and December 31, 2013, respectively	-4,633	-4,000
Accumulated deficit	-32,646	-28,963
Total stockholders’ equity	83,831	86,915
Total liabilities and stockholders’ equity	$96,626	$101,935

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Allowance for doubtful accounts (in Dollars)	$263	$241
Property and equipment, accumulated depreciation (in Dollars)	$12,850	$12,082
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	53,395,001	53,136,704
Common stock, shares outstanding	51,497,098	51,354,101
Treasury stock, at cost, shares	1,897,903	1,782,603

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Net revenue	$3,897	$6,373
Cost of revenue	1,652	3,356
Gross profit	2,245	3,017
Operating expenses:	'	'
General and administrative	2,039	4,170
Sales and marketing	2,495	2,011
Research and development	1,234	1,082
Amortization of intangible assets	215	230
Total operating expenses	5,983	7,493
Loss from operations	-3,738	-4,476
Other non-operating income, net of expenses	121	27
Loss before income taxes	-3,617	-4,449
Provision for income taxes	66	61
Net loss	($3,683)	($4,510)
Basic and diluted net loss per share (in Dollars per share)	($0.07)	($0.09)
Shares used in basic and diluted per share calculation (in Shares)	51,446	50,982

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Comprehensive Loss (Unaudited) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Net loss	($3,683)	($4,510)
Other comprehensive income (loss), net of tax:	'	'
Foreign currency translation adjustments	43	5
Unrealized gain (loss) on investments	2	-11
Other comprehensive income (loss)	45	-6
Comprehensive loss	($3,638)	($4,516)

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Cash Flows From Operating Activities	'	'
Net loss	($3,683)	($4,510)
Adjustments to reconcile net loss to net cash used in operating activities:	'	'
Depreciation and amortization	983	911
Loss on disposal of fixed assets	'	13
Amortization of premiums/discounts on investments	125	89
Share-based compensation	581	689
Loss on foreign currency transactions	10	10
Deferred income taxes	56	56
Provision for doubtful accounts	72	40
Provision for warranty claims	3	97
Valuation adjustments for excess or obsolete inventory	40	-20
Other non-cash adjustments	-125	-29
Changes in operating assets and liabilities:	'	'
Accounts receivable	-2,052	1,426
Unbilled receivables	4,696	2,232
Inventories	-3,361	-1,480
Prepaid and other assets	-1,112	-121
Accounts payable	448	-117
Accrued expenses and other liabilities	-2,638	-2,810
Income taxes payable	7	4
Deferred revenue	15	-334
Net cash used in operating activities	-5,935	-3,854
Cash Flows From Investing Activities	'	'
Capital expenditures	-38	-384
Purchase of marketable securities	'	-3,464
Maturities of marketable securities	2,600	4,250
Restricted cash	412	59
Net cash provided by investing activities	2,974	461
Cash Flows From Financing Activities	'	'
Repayment of capital lease obligation	'	-14
Net proceeds from issuance of common stock	604	200
Repurchase of common stock for treasury	-633	'
Net cash provided by (used in) financing activities	-29	186
Effect of exchange rate differences on cash and cash equivalents	56	-12
Net change in cash and cash equivalents	-2,934	-3,219
Cash and cash equivalents, beginning of period	14,371	16,642
Cash and cash equivalents, end of period	$11,437	$13,423

Note_1_The_Company_and_Summary

Note 1 - The Company and Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2014
Accounting Policies [Abstract]	'
Organization, Consolidation and Presentation of Financial Statements Disclosure and 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, manufactures, and sells 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 and gas, under the trademarks ERI®, PX®, Pressure Exchanger®, PX Pressure Exchanger®, IsoBoost™, IsoGen™, and IsoPro™. Our products are developed and manufactured in the United States of America (“U.S.”) at our headquarters in San Leandro, California. We also have sales offices in Madrid, Spain; 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; deferred taxes and valuation allowances on deferred tax assets; and evaluation and measurement of contingencies, including contingent consideration. 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, 2013 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, 2013 included in our Annual Report on Form 10-K filed with the SEC on March 11, 2014.
	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.
	Change in Method of Accounting for Inventory Valuation
	Prior to January 1, 2014, inventories were stated at the lower of cost (using the weighted average cost method) or market. Effective January 1, 2014, with the final implementation of our new enterprise resource planning (“ERP”) system, we changed our method of accounting for inventories to the first-in, first-out (“FIFO”) method. We believe that the change is preferable, as the FIFO method better reflects the current value of inventories and provides more accurate matching of manufacturing costs and revenues. Due to the limited capabilities of our former ERP system, we determined that it was impracticable to retrospectively apply the FIFO costing method to prior periods. As such, prior period consolidated financial statements have not been retroactively adjusted. The cumulative effect of this change was not material.
	Recent Accounting Pronouncements
	There have been no recent accounting pronouncements that have an impact on our consolidated financial statements.

Note_2_Goodwill_and_Other_Inta

Note 2 - Goodwill and Other Intangible Assets	3 Months Ended
	Mar. 31, 2014
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, 2014 and December 31, 2013 of $12.8 million was the result of our acquisition of Pump Engineering, LLC in December 2009. During the three months ended March 31, 2014, there were no changes in the recognized amount of goodwill.
	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-14
			Gross		Accumulated			Accumulated			Net
			Carrying		Amortization			Impairment			Carrying
			Amount					Losses			Amount
	Developed technology	$	6,100	$	(2,644	)	$	—		$	3,456
	Non-compete agreements		1,310		(1,207	)		—			103
	Backlog		1,300		(1,300	)		—			—
	Trademarks		1,200		(180	)		(1,020	)		—
	Customer relationships		990		(942	)		—			48
	Patents		585		(358	)		(42	)		185
	Total	$	11,485	$	(6,631	)	$	(1,062	)	$	3,792
		31-Dec-13
		Gross		Accumulated			Accumulated			Net
		Carrying		Amortization			Impairment			Carrying
		Amount					Losses			Amount
	Developed technology	$	6,100	$	(2,491	)	$	—		$	3,609
	Non-compete agreements		1,310		(1,169	)		—			141
	Backlog		1,300		(1,300	)		—			—
	Trademarks		1,200		(180	)		(1,020	)		—
	Customer relationships		990		(924	)		—			66
	Patents		585		(351	)		(42	)		192
	Total	$	11,485	$	(6,415	)	$	(1,062	)	$	4,008
	Accumulated impairment losses at March 31, 2014 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, 2014
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,
		2014			2013
	Numerator:
	Net loss	$	(3,683	)	$	(4,510	)
	Denominator:
	Basic and diluted weighted average common shares outstanding		51,446			50,982
	Basic and diluted net loss per share	$	(0.07	)	$	(0.09	)
	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,
		2014			2013
	Stock options		7,297			7,349
	Warrants		600			900
	Restricted awards*		—			2
	*     Includes restricted stock and restricted stock units.

Note_4_Other_Financial_Informa

Note 4 - Other Financial Information	3 Months Ended
	Mar. 31, 2014
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 contingent payments resulting from a business acquisition, stand-by letters of credit, and credit cards. 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,
		2014			2013
	Contingent and other consideration for acquisition	$	2,504		$	2,504
	Collateral for stand-by letters of credit		2,338			1,492
	Collateral for credit cards		315			315
	Current restricted cash	$	5,157		$	4,311
	Contingent and other consideration for acquisition	$	1,000		$	1,000
	Collateral for stand-by letters of credit		2,210			3,468
	Non-current restricted cash	$	3,210		$	4,468
	Total restricted cash	$	8,367		$	8,779
	Inventories
	Our inventories consisted of the following (in thousands):
		March 31,			December 31,
		2014			2013
	Raw materials	$	3,244		$	2,431
	Work in process		2,205			1,427
	Finished goods		2,827			1,097
	Inventories	$	8,276		$	4,955
	Prepaid and Other Current Assets
	Prepaid expenses and other current assets consisted of the following (in thousands):
		March 31,			December 31,
		2014			2013
	Interest receivable	$	245		$	163
	Supplier advances		490			203
	Other prepaid expenses and current assets		1,396			652
		$	2,131		$	1,018
	Accrued Expenses and Other Current Liabilities
	Accrued expenses and other current liabilities consisted of the following (in thousands):
		March 31,			December 31,
		2014			2013
	Payroll and commissions payable	$	2,483		$	4,857
	Contingent consideration (current portion) and legal expenses		1,448			1,603
	Other accrued expenses and current liabilities		1,431			1,503
	Accrued expenses and other current liabilities	$	5,362		$	7,963
	Accumulated Other Comprehensive Loss
	Changes in accumulated other comprehensive loss by component for the quarter ended March 31, 2014 were as follows (in thousands):
		Foreign			Unrealized			Total
		Currency			Gains (Losses)			Accumulated
		Translation			on			Other
		Adjustments			Investments			Comprehensive
								Loss
	Balance, December 31, 2013	$	(106	)	$	(1	)	$	(107	)
	Net other comprehensive income		43			2			45
	Balance, March 31, 2014	$	(63	)	$	1		$	(62	)
	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 income 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, 2014
Investments Schedule [Abstract]	'
Investment [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, 2014.
	Available-for-sale securities as of the dates indicated consisted of the following (in thousands):
		31-Mar-14
		Amortized Cost		Gross Unrealized Holding Gains			Gross Unrealized Holding Losses			Fair Value
	Short-term investments:
	State and local government obligations	$	1,831	$	3		$	—		$	1,834
	Corporate notes and bonds		6,178		6			(1	)		6,183
	Total short-term investments	$	8,009	$	9		$	(1	)	$	8,017
	Long-term investments:
	Corporate notes and bonds	$	8,817	$	7		$	(14	)	$	8,810
	Total long-term investments	$	8,817	$	7		$	(14	)	$	8,810
	Total available-for-sale securities	$	16,826	$	16		$	(15	)	$	16,827
		31-Dec-13
		Amortized Cost		Gross Unrealized Holding Gains			Gross Unrealized Holding Losses			Fair Value
	Short-term investments:
	State and local government obligations		2,113		3			—			2,116
	Corporate notes and bonds		3,739		2			(1	)		3,740
	Total short-term investments	$	5,852	$	5		$	(1	)	$	5,856
	Long-term investments:
	State and local government obligations		227		1			—			228
	Corporate notes and bonds		13,472		11			(17	)		13,466
	Total long-term investments	$	13,699	$	12		$	(17	)	$	13,694
	Total available-for-sale securities	$	19,551	$	17		$	(18	)	$	19,550
	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-14
		Less than 12 months					12 months or greater						Total
		Fair Value		Gross			Fair Value			Gross			Fair Value		Gross
				Unrealized						Unrealized					Unrealized
				Losses						Losses					Losses
	Corporate notes and bonds	$	3,699	$	(9	)	$	1,037		$	(6	)	$	4,736	$	(15	)
	Total	$	3,699	$	(9	)	$	1,037		$	(6	)	$	4,736	$	(15	)
		31-Dec-13
		Less than 12 months					12 months or greater						Total
		Fair Value		Gross			Fair Value			Gross			Fair Value		Gross
				Unrealized						Unrealized					Unrealized
				Losses						Losses					Losses
	Corporate notes and bonds	$	4,919	$	(17	)	$	524		$	(1	)	$	5,443	$	(18	)
	Total	$	4,919	$	(17	)	$	524		$	(1	)	$	5,443	$	(18	)
	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, 2014 are shown below by contractual maturity (in thousands):
		31-Mar-14
		Amortized Cost		Fair Value
	Due in one year or less	$	—	$	—
	Due after one year through three years		16,826		16,827
	Total available-for-sale securities	$	16,826	$	16,827

Note_6_LongTerm_Debt_and_Capit

Note 6 - Long-Term Debt and Capital Leases	3 Months Ended
	Mar. 31, 2014
Disclosure Text Block Supplement [Abstract]	'
Debt and Capital Leases Disclosures [Text Block]	'
	Note 6 — Long-Term Debt and Capital Leases
	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, 2014 and December 31, 2013, there were no advances drawn under the 2012 Agreement. Stand-by letters of credit collateralized under the 2012 Agreement totaled $1.3 million as of March 31, 2014 and December 31, 2013. Total cash restricted related to these stand-by letters of credit totaled $1.3 million as of March 31, 2014 and December 31, 2013.
	We are subject to certain financial and administrative covenants under the 2012 Agreement. As of March 31, 2014, 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 on May 30, 2012. 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 $3.2 million and $3.6 million as of March 31, 2014 and December 31, 2013, respectively. Total cash restricted related to these stand-by letters of credit totaled $3.2 million and $3.7 million as of March 31, 2014 and December 31, 2013, respectively.

Note_7_Equity

Note 7 - Equity	3 Months Ended
	Mar. 31, 2014
Disclosure Text Block Supplement [Abstract]	'
Shareholders' Equity and Share-based Payments [Text Block]	'
	Note 7 — Equity
	Stock Repurchase Program
	In February 2014, our Board of Directors authorized a stock repurchase program under which up to three million shares, not to exceed $6.0 million in aggregate cost, of our outstanding common stock could be repurchased through December 31, 2014 at the discretion of management, subject to normal black-out periods when repurchases cannot occur. We account for treasury stock using the cost method. Cost includes fees charged in connection with acquiring the treasury stock. In March 2014, 115,300 shares at an aggregate cost of $633,000 were repurchased under this authorization.
	Share-Based Compensation Expense
	For the three months ended March 31, 2014 and 2013, we recognized share-based compensation expense related to employees and consultants as follows (in thousands):
		Three Months Ended
		March 31,
		2014		2013
	Cost of revenue	$	22	$	21
	General and administrative		329		507
	Sales and marketing		153		115
	Research and development		77		46
	Total share-based compensation expense	$	581	$	689
	As of March 31, 2014, total unrecognized compensation cost related to non-vested share-based awards, net of estimated forfeitures, was $4.6 million, which is expected to be recognized as expense over a weighted average period of approximately 2.9 years.
	In March 2014, we granted 957,000 stock options to certain officers and other employees. The options vest over a four-year period, have an exercise price of $6.00 per share, and expire 10 years from the grant date.
	Also, in March 2014, we granted 10,000 stock options to an employee. The options vest over a four-year period, have an exercise price of $5.32 per share, and expire 10 years from the grant date.
	In April 2014, we granted 440,000 stock options to our President and Chief Executive Officer in lieu of his participation in the 2014 cash incentive plan. The options vest over a four year period, have an exercise price of $4.96 per share, and expire 10 years from the grant date.

Note_8_Income_Taxes

Note 8 - Income Taxes	3 Months Ended
	Mar. 31, 2014
Income Tax Disclosure [Abstract]	'
Income Tax Disclosure [Text Block]	'
	Note 8 — Income Taxes
	The effective tax rate for the three months ended March 31, 2014 and 2013 was (1.8%) and (1.4%), respectively. As of December 31, 2013, a valuation allowance of approximately $13.4 million was 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, 2014, 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, 2014
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,
		2014
	2014 (remaining nine months)	$	1,244
	2015		1,539
	2016		1,575
	2017		1,567
	2018		1,591
	Thereafter		1,398
	Total future minimum lease payments	$	8,914
	Product Warranty
	The following table summarizes the activity related to the product warranty liability during the three months ended March 31, 2014 and 2013 (in thousands):
		Three Months Ended
		March 31,
		2014			2013
	Balance, beginning of period	$	709		$	1,172
	Warranty costs charged to cost of revenue		3			97
	Utilization of warranty		(7	)		(13	)
	Balance, end of period	$	705		$	1,256
	Purchase Obligations
	We enter into purchase order arrangements with our vendors. As of March 31, 2014, 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, 2014, we had approximately $3.2 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, 2014 and December 31, 2013.
	In certain cases, we issue warranty and product performance guarantees to our customers for amounts ranging from 10% to 30% 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 59 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 $4.5 million in outstanding stand-by letters of credit at March 31, 2014, $3.2 million was issued under the 2009 Agreement and $1.3 million was issued under the 2012 Agreement. The stand-by letters of credit outstanding at March 31, 2014 were collateralized by restricted cash of $4.5 million.
	Litigation
	Note 9 – Commitments and Contingencies, under the caption “Litigation” of our Annual Report on Form 10-K filed with the SEC on March 11, 2014, provides information on certain litigation in which we are involved. Unfavorable rulings, judgments, or settlement terms regarding these litigation matters could have a material adverse impact on our business, financial condition, results of operations, and cash flows. Although none of the litigation matters can be quantified with absolute certainty, we have established accruals covering exposure and relating to contingencies to the extent that they are reasonably estimable and probable based on available facts.
	On March 28, 2014, in the matter entitled “Roy Radakovich, as representative on behalf of former shareholders of Pump Engineering, LLC v. Energy Recovery, Inc.,” in the U.S. District Court for the Eastern District of Michigan (Southern Division), the Court granted summary judgment in favor of the Company on Claim I of the complaint (achieving certain minimum product energy efficiency metrics ($1.3 million)), but denied summary judgment on Claim II of the complaint (meeting certain product delivery time schedules ($1.2 million)). Trial on Claim II is scheduled for June 10, 2014. The Company made a small change in its accrued liability related to this matter to reflect this ruling.
	Defendants in Energy Recovery Inc., v. Leif J. Hauge; Isobaric Strategies, Inc.; Tristan Nillo; and James Coyle filed a motion for attorneys' fees alleging that the Company had brought the trade secrets claim against defendants in bad faith. On April 1, 2014, the Court denied the defendants' motion for attorneys' fees, finding that the Company had not brought the trade secrets claim against the defendants in bad faith. The Company had no liability accrued for this matter; therefore, there was no effect on the condensed consolidated income statement and balance sheets.

Note_10_Business_Segment_and_G

Note 10 - Business Segment and Geographic Information	3 Months Ended
	Mar. 31, 2014
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,
			2014			2013
	Domestic revenue		$	349		$	1,295
	International revenue			3,548			5,078
	Total revenue		$	3,897		$	6,373
	Revenue by country:
	Israel			13	%		1	%
	United States			9			20
	India			6			14
	Indonesia			*			14
	Others **			72			51
	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, 2014 and December 31, 2013.

Note_11_Concentrations

Note 11 - Concentrations	3 Months Ended
	Mar. 31, 2014
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,
		2014			2013
	Customer A		21	%		19	%
	Customer B		18	%		16	%
	Customer C		17	%		17	%
	Customer D		16	%		14	%
	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,
		2014			2013
	Customer E		16	%		*
	Customer F		10	%		*
	Customer G		*			13	%
	*     Less than 10%.

Note_12_Fair_Value_Measurement

Note 12 - Fair Value Measurements	3 Months Ended
	Mar. 31, 2014
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 certificates of deposits; commercial paper; and municipal, corporate, and agency obligations. The carrying amount of the contingent consideration arising from our acquisition of Pump Engineering, LLC is measured at fair value on a recurring basis using unobservable inputs in which little or no market activity exists (Level 3). The estimated fair value of the contingent consideration is determined based entirely on management’s assessment of the weighted probability of payment under various scenarios.
	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
			2014			Inputs			Inputs		Inputs
	Assets:
	Short-term available-for-sale securities		$	8,017		$	—		$	8,017	$	—
	Long-term available-for-sale securities			8,810			—			8,810		—
	Total assets		$	16,827		$	—		$	16,827	$	—
	Liabilities:
	Contingent consideration*		$	1,535		$	—		$	—	$	1,535
	Total liabilities		$	1,535		$	—		$	—	$	1,535
			December 31,			Level 1			Level 2		Level 3
			2013			Inputs			Inputs		Inputs
	Assets:
	Short-term available-for-sale securities		$	5,856		$	—		$	5,856	$	—
	Long-term available-for-sale securities			13,694			—			13,694		—
	Total assets		$	19,550		$	—		$	19,550	$	—
	Liabilities:
	Contingent consideration*		$	1,524		$	—		$	—	$	1,524
	Total liabilities		$	1,524		$	—		$	—	$	1,524
	*Included in Accrued Expenses and Other Current Liabilities and Other Non-Current Liabilities.
	The following table presents quantitative information about the inputs and valuation methodologies used for our fair value measurements classified as Level 3 of the fair value hierarchy as of March 31, 2014:
	As of March 31, 2014		Fair Value		Valuation Technique		Significant	Range
			(in thousands)				Unobservable Input
	Acquisition-related contingent consideration		$	1,535	Income approach		Probability of outcome	50	–	100%
	The reconciliation of the beginning and ending balances for assets and liabilities measured on a recurring basis using significant unobservable inputs (Level 3) for the period ended March 31, 2014 was as follows (in thousands):
			Contingent
			Consideration
	Balance, December 31, 2013		$	1,524
	Loss due to change in value			11
	Balance, March 31, 2014		$	1,535

Note_13_Subsequent_Events

Note 13 - Subsequent Events	3 Months Ended
	Mar. 31, 2014
Subsequent Events [Abstract]	'
Subsequent Events [Text Block]	'
	Note 13 — Subsequent Events
	See Note 7 – “Equity”, for discussion of options granted in April 2014.

Accounting_Policies_by_Policy_

Accounting Policies, by Policy (Policies)	3 Months Ended
	Mar. 31, 2014
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; deferred taxes and valuation allowances on deferred tax assets; and evaluation and measurement of contingencies, including contingent consideration. 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, 2013 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, 2013 included in our Annual Report on Form 10-K filed with the SEC on March 11, 2014.
	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.
Inventory, Policy [Policy Text Block]	'
	Change in Method of Accounting for Inventory Valuation
	Prior to January 1, 2014, inventories were stated at the lower of cost (using the weighted average cost method) or market. Effective January 1, 2014, with the final implementation of our new enterprise resource planning (“ERP”) system, we changed our method of accounting for inventories to the first-in, first-out (“FIFO”) method. We believe that the change is preferable, as the FIFO method better reflects the current value of inventories and provides more accurate matching of manufacturing costs and revenues. Due to the limited capabilities of our former ERP system, we determined that it was impracticable to retrospectively apply the FIFO costing method to prior periods. As such, prior period consolidated financial statements have not been retroactively adjusted. The cumulative effect of this change was not material.
New Accounting Pronouncements, Policy [Policy Text Block]	'
	Recent Accounting Pronouncements
	There have been no recent accounting pronouncements that have an impact on our consolidated financial statements.

Note_2_Goodwill_and_Other_Inta1

Note 2 - Goodwill and Other Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Schedule of Finite-Lived Intangible Assets [Table Text Block]	'
			31-Mar-14
			Gross		Accumulated			Accumulated			Net
			Carrying		Amortization			Impairment			Carrying
			Amount					Losses			Amount
	Developed technology	$	6,100	$	(2,644	)	$	—		$	3,456
	Non-compete agreements		1,310		(1,207	)		—			103
	Backlog		1,300		(1,300	)		—			—
	Trademarks		1,200		(180	)		(1,020	)		—
	Customer relationships		990		(942	)		—			48
	Patents		585		(358	)		(42	)		185
	Total	$	11,485	$	(6,631	)	$	(1,062	)	$	3,792
		31-Dec-13
		Gross		Accumulated			Accumulated			Net
		Carrying		Amortization			Impairment			Carrying
		Amount					Losses			Amount
	Developed technology	$	6,100	$	(2,491	)	$	—		$	3,609
	Non-compete agreements		1,310		(1,169	)		—			141
	Backlog		1,300		(1,300	)		—			—
	Trademarks		1,200		(180	)		(1,020	)		—
	Customer relationships		990		(924	)		—			66
	Patents		585		(351	)		(42	)		192
	Total	$	11,485	$	(6,415	)	$	(1,062	)	$	4,008

Note_3_Loss_Per_Share_Tables

Note 3 - Loss Per Share (Tables)	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	'
		Three Months Ended
		March 31,
		2014			2013
	Numerator:
	Net loss	$	(3,683	)	$	(4,510	)
	Denominator:
	Basic and diluted weighted average common shares outstanding		51,446			50,982
	Basic and diluted net loss per share	$	(0.07	)	$	(0.09	)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]	'
		Three months Ended
		March 31,
		2014			2013
	Stock options		7,297			7,349
	Warrants		600			900
	Restricted awards*		—			2

Note_4_Other_Financial_Informa1

Note 4 - Other Financial Information (Tables)	3 Months Ended
	Mar. 31, 2014
Disclosure Text Block Supplement [Abstract]	'
Schedule of Restricted Cash and Cash Equivalents [Table Text Block]	'
		March 31,			December 31,
		2014			2013
	Contingent and other consideration for acquisition	$	2,504		$	2,504
	Collateral for stand-by letters of credit		2,338			1,492
	Collateral for credit cards		315			315
	Current restricted cash	$	5,157		$	4,311
	Contingent and other consideration for acquisition	$	1,000		$	1,000
	Collateral for stand-by letters of credit		2,210			3,468
	Non-current restricted cash	$	3,210		$	4,468
	Total restricted cash	$	8,367		$	8,779
Schedule of Inventory, Current [Table Text Block]	'
		March 31,			December 31,
		2014			2013
	Raw materials	$	3,244		$	2,431
	Work in process		2,205			1,427
	Finished goods		2,827			1,097
	Inventories	$	8,276		$	4,955
Schedule of Other Current Assets [Table Text Block]	'
		March 31,			December 31,
		2014			2013
	Interest receivable	$	245		$	163
	Supplier advances		490			203
	Other prepaid expenses and current assets		1,396			652
		$	2,131		$	1,018
Schedule of Accrued Liabilities [Table Text Block]	'
		March 31,			December 31,
		2014			2013
	Payroll and commissions payable	$	2,483		$	4,857
	Contingent consideration (current portion) and legal expenses		1,448			1,603
	Other accrued expenses and current liabilities		1,431			1,503
	Accrued expenses and other current liabilities	$	5,362		$	7,963
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	'
		Foreign			Unrealized			Total
		Currency			Gains (Losses)			Accumulated
		Translation			on			Other
		Adjustments			Investments			Comprehensive
								Loss
	Balance, December 31, 2013	$	(106	)	$	(1	)	$	(107	)
	Net other comprehensive income		43			2			45
	Balance, March 31, 2014	$	(63	)	$	1		$	(62	)

Note_5_Investments_Tables

Note 5 - Investments (Tables)	3 Months Ended
	Mar. 31, 2014
Investments Schedule [Abstract]	'
Available-for-sale Securities [Table Text Block]	'
		31-Mar-14
		Amortized Cost		Gross Unrealized Holding Gains			Gross Unrealized Holding Losses			Fair Value
	Short-term investments:
	State and local government obligations	$	1,831	$	3		$	—		$	1,834
	Corporate notes and bonds		6,178		6			(1	)		6,183
	Total short-term investments	$	8,009	$	9		$	(1	)	$	8,017
	Long-term investments:
	Corporate notes and bonds	$	8,817	$	7		$	(14	)	$	8,810
	Total long-term investments	$	8,817	$	7		$	(14	)	$	8,810
	Total available-for-sale securities	$	16,826	$	16		$	(15	)	$	16,827
		31-Dec-13
		Amortized Cost		Gross Unrealized Holding Gains			Gross Unrealized Holding Losses			Fair Value
	Short-term investments:
	State and local government obligations		2,113		3			—			2,116
	Corporate notes and bonds		3,739		2			(1	)		3,740
	Total short-term investments	$	5,852	$	5		$	(1	)	$	5,856
	Long-term investments:
	State and local government obligations		227		1			—			228
	Corporate notes and bonds		13,472		11			(17	)		13,466
	Total long-term investments	$	13,699	$	12		$	(17	)	$	13,694
	Total available-for-sale securities	$	19,551	$	17		$	(18	)	$	19,550
Schedule of Unrealized Loss on Investments [Table Text Block]	'
		31-Mar-14
		Less than 12 months					12 months or greater						Total
		Fair Value		Gross			Fair Value			Gross			Fair Value		Gross
				Unrealized						Unrealized					Unrealized
				Losses						Losses					Losses
	Corporate notes and bonds	$	3,699	$	(9	)	$	1,037		$	(6	)	$	4,736	$	(15	)
	Total	$	3,699	$	(9	)	$	1,037		$	(6	)	$	4,736	$	(15	)
		31-Dec-13
		Less than 12 months					12 months or greater						Total
		Fair Value		Gross			Fair Value			Gross			Fair Value		Gross
				Unrealized						Unrealized					Unrealized
				Losses						Losses					Losses
	Corporate notes and bonds	$	4,919	$	(17	)	$	524		$	(1	)	$	5,443	$	(18	)
	Total	$	4,919	$	(17	)	$	524		$	(1	)	$	5,443	$	(18	)
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]	'
		31-Mar-14
		Amortized Cost		Fair Value
	Due in one year or less	$	—	$	—
	Due after one year through three years		16,826		16,827
	Total available-for-sale securities	$	16,826	$	16,827

Note_7_Equity_Tables

Note 7 - Equity (Tables)	3 Months Ended
	Mar. 31, 2014
Disclosure Text Block Supplement [Abstract]	'
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]	'
		Three Months Ended
		March 31,
		2014		2013
	Cost of revenue	$	22	$	21
	General and administrative		329		507
	Sales and marketing		153		115
	Research and development		77		46
	Total share-based compensation expense	$	581	$	689

Note_9_Commitments_and_Conting1

Note 9 - Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Operating Leases of Lessee Disclosure [Table Text Block]	'
		March 31,
		2014
	2014 (remaining nine months)	$	1,244
	2015		1,539
	2016		1,575
	2017		1,567
	2018		1,591
	Thereafter		1,398
	Total future minimum lease payments	$	8,914
Schedule of Product Warranty Liability [Table Text Block]	'
		Three Months Ended
		March 31,
		2014			2013
	Balance, beginning of period	$	709		$	1,172
	Warranty costs charged to cost of revenue		3			97
	Utilization of warranty		(7	)		(13	)
	Balance, end of period	$	705		$	1,256

Note_10_Business_Segment_and_G1

Note 10 - Business Segment and Geographic Information (Tables)	3 Months Ended
	Mar. 31, 2014
Segment Reporting [Abstract]	'
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]	'
		Three Months Ended
		March 31,
		2014			2013
	Domestic revenue	$	349		$	1,295
	International revenue		3,548			5,078
	Total revenue	$	3,897		$	6,373
	Revenue by country:
	Israel		13	%		1	%
	United States		9			20
	India		6			14
	Indonesia		*			14
	Others **		72			51
	Total		100	%		100	%

Note_11_Concentrations_Tables

Note 11 - Concentrations (Tables)	3 Months Ended
	Mar. 31, 2014
Accounts Receivable [Member]	'
Note 11 - Concentrations (Tables) [Line Items]	'
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]	'
		March 31,			December 31,
		2014			2013
	Customer A		21	%		19	%
	Customer B		18	%		16	%
	Customer C		17	%		17	%
	Customer D		16	%		14	%
Sales Revenue, Goods, Net [Member]	'
Note 11 - Concentrations (Tables) [Line Items]	'
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]	'
		Three Months Ended
		March 31,
		2014			2013
	Customer E		16	%		*
	Customer F		10	%		*
	Customer G		*			13	%

Note_12_Fair_Value_Measurement1

Note 12 - Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2014
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
		2014			Inputs			Inputs		Inputs
	Assets:
	Short-term available-for-sale securities	$	8,017		$	—		$	8,017	$	—
	Long-term available-for-sale securities		8,810			—			8,810		—
	Total assets	$	16,827		$	—		$	16,827	$	—
	Liabilities:
	Contingent consideration*	$	1,535		$	—		$	—	$	1,535
	Total liabilities	$	1,535		$	—		$	—	$	1,535
		December 31,			Level 1			Level 2		Level 3
		2013			Inputs			Inputs		Inputs
	Assets:
	Short-term available-for-sale securities	$	5,856		$	—		$	5,856	$	—
	Long-term available-for-sale securities		13,694			—			13,694		—
	Total assets	$	19,550		$	—		$	19,550	$	—
	Liabilities:
	Contingent consideration*	$	1,524		$	—		$	—	$	1,524
	Total liabilities	$	1,524		$	—		$	—	$	1,524
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]	'
	As of March 31, 2014	Fair Value		Valuation Technique		Significant	Range
		(in thousands)				Unobservable Input
	Acquisition-related contingent consideration	$	1,535	Income approach		Probability of outcome	50	–	100%
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]	'
		Contingent
		Consideration
	Balance, December 31, 2013	$	1,524
	Loss due to change in value		11
	Balance, March 31, 2014	$	1,535

Note_2_Goodwill_and_Other_Inta2

Note 2 - Goodwill and Other Intangible Assets (Details) (USD $)	12 Months Ended
	Dec. 31, 2010	Dec. 31, 2007	Mar. 31, 2014	Dec. 31, 2013
Note 2 - Goodwill and Other Intangible Assets (Details) [Line Items]	'	'	'	'
Goodwill	'	'	$12,790,000	$12,790,000
Goodwill, Impaired, Accumulated Impairment Loss	'	'	0	'
	'	'	1,062,000	1,062,000
Trademarks [Member]	'	'	'	'
Note 2 - Goodwill and Other Intangible Assets (Details) [Line Items]	'	'	'	'
	'	'	1,020,000	1,020,000
Patents [Member]	'	'	'	'
Note 2 - Goodwill and Other Intangible Assets (Details) [Line Items]	'	'	'	'
	'	'	42,000	42,000
Impairment of Intangible Assets, Finite-lived	$11,000	$31,000	'	'

Note_2_Goodwill_and_Other_Inta3

Note 2 - Goodwill and Other Intangible Assets (Details) - Identifiable Intangible Assets (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	$11,485	$11,485
Accumulated Amortization	-6,631	-6,415
Accumulated Impairment Losses	-1,062	-1,062
Net Carrying Amount	3,792	4,008
Developed Technology Rights [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	6,100	6,100
Accumulated Amortization	-2,644	-2,491
Net Carrying Amount	3,456	3,609
Noncompete Agreements [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	1,310	1,310
Accumulated Amortization	-1,207	-1,169
Net Carrying Amount	103	141
Order or Production Backlog [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	1,300	1,300
Accumulated Amortization	-1,300	-1,300
Trademarks [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	1,200	1,200
Accumulated Amortization	-180	-180
Accumulated Impairment Losses	-1,020	-1,020
Customer Relationships [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	990	990
Accumulated Amortization	-942	-924
Net Carrying Amount	48	66
Patents [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	585	585
Accumulated Amortization	-358	-351
Accumulated Impairment Losses	-42	-42
Net Carrying Amount	$185	$192

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, 2014	Mar. 31, 2013
Numerator:	'	'
Net loss	($3,683)	($4,510)
Denominator:	'	'
Basic and diluted weighted average common shares outstanding	51,446	50,982
Basic and diluted net loss per share	($0.07)	($0.09)

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, 2014		Mar. 31, 2013
Employee Stock Option [Member]	'		'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'		'
Antidilutive securities	7,297		7,349
Warrant [Member]	'		'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'		'
Antidilutive securities	600		900
Restricted Stock [Member]	'		'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'		'
Antidilutive securities	'	[1]	2	[1]
[1]	Includes restricted stock and restricted stock units.

Note_4_Other_Financial_Informa2

Note 4 - Other Financial Information (Details) - Restricted Cash (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Restricted Cash and Cash Equivalents Items [Line Items]	'	'
Current restricted cash	$5,157	$4,311
Non-current restricted cash	3,210	4,468
Total restricted cash	8,367	8,779
Contingent and Other Consideration for Acquisition [Member]	'	'
Restricted Cash and Cash Equivalents Items [Line Items]	'	'
Current restricted cash	2,504	2,504
Non-current restricted cash	1,000	1,000
Collateral for Stand-by Letters of Credit [Member]	'	'
Restricted Cash and Cash Equivalents Items [Line Items]	'	'
Current restricted cash	2,338	1,492
Non-current restricted cash	2,210	3,468
Collateral for Credit Cards [Member]	'	'
Restricted Cash and Cash Equivalents Items [Line Items]	'	'
Current restricted cash	$315	$315

Note_4_Other_Financial_Informa3

Note 4 - Other Financial Information (Details) - Inventories (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Inventories [Abstract]	'	'
Raw materials	$3,244	$2,431
Work in process	2,205	1,427
Finished goods	2,827	1,097
Inventories	$8,276	$4,955

Note_4_Other_Financial_Informa4

Note 4 - Other Financial Information (Details) - Prepaid Expenses and Other Current Assets (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Prepaid Expenses and Other Current Assets [Abstract]	'	'
Interest receivable	$245	$163
Supplier advances	490	203
Other prepaid expenses and current assets	1,396	652
	$2,131	$1,018

Note_4_Other_Financial_Informa5

Note 4 - Other Financial Information (Details) - Accrued Expenses and Other Current Liabilities (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Note 4 - Other Financial Information (Details) - Accrued Expenses and Other Current Liabilities [Line Items]	'	'
Payroll and commissions payable	$2,483	$4,857
Other accrued expenses and current liabilities	1,431	1,503
Accrued expenses and other current liabilities	5,362	7,963
Other Current Liabilities [Member]	'	'
Note 4 - Other Financial Information (Details) - Accrued Expenses and Other Current Liabilities [Line Items]	'	'
Contingent consideration (current portion) and legal expenses	$1,448	$1,603

Note_4_Other_Financial_Informa6

Note 4 - Other Financial Information (Details) - Accumulated Other Comprehensive Loss (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'
Balance	($62)	'	($107)
Net other comprehensive income	45	-6	'
Accumulated Translation Adjustment [Member]	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'
Balance	-63	'	-106
Net other comprehensive income	43	'	'
Accumulated Net Unrealized Investment Gain (Loss) [Member]	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'
Balance	1	'	-1
Net other comprehensive income	$2	'	'

Note_5_Investments_Details

Note 5 - Investments (Details) (USD $)	3 Months Ended
	Mar. 31, 2014
Investments Schedule [Abstract]	'
Proceeds from Sale of Available-for-sale Securities	$0

Note_5_Investments_Details_Ava

Note 5 - Investments (Details) - Available-For-Sale Securities (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Short-term investments:	'	'
Amortized Cost	$16,826	$19,551
Gross Unrealized Holding Gains	16	17
Gross Unrealized Holding Losses	-15	-18
Fair Value	16,827	19,550
State and Local Government Obligations [Member] | Short-term Investments [Member]	'	'
Short-term investments:	'	'
Amortized Cost	1,831	2,113
Gross Unrealized Holding Gains	3	3
Fair Value	1,834	2,116
State and Local Government Obligations [Member] | Other Long-term Investments [Member]	'	'
Short-term investments:	'	'
Amortized Cost	'	227
Gross Unrealized Holding Gains	'	1
Fair Value	'	228
Corporate Debt Securities [Member] | Short-term Investments [Member]	'	'
Short-term investments:	'	'
Amortized Cost	6,178	3,739
Gross Unrealized Holding Gains	6	2
Gross Unrealized Holding Losses	-1	-1
Fair Value	6,183	3,740
Corporate Debt Securities [Member] | Other Long-term Investments [Member]	'	'
Short-term investments:	'	'
Amortized Cost	8,817	13,472
Gross Unrealized Holding Gains	7	11
Gross Unrealized Holding Losses	-14	-17
Fair Value	8,810	13,466
Short-term Investments [Member]	'	'
Short-term investments:	'	'
Amortized Cost	8,009	5,852
Gross Unrealized Holding Gains	9	5
Gross Unrealized Holding Losses	-1	-1
Fair Value	8,017	5,856
Other Long-term Investments [Member]	'	'
Short-term investments:	'	'
Amortized Cost	8,817	13,699
Gross Unrealized Holding Gains	7	12
Gross Unrealized Holding Losses	-14	-17
Fair Value	$8,810	$13,694

Note_5_Investments_Details_Gro

Note 5 - Investments (Details) - Gross Unrealized Losses and Fair Values of Investments (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Note 5 - Investments (Details) - Gross Unrealized Losses and Fair Values of Investments [Line Items]	'	'
Fair value, less than 12 months	$3,699	$4,919
Gross unrealized losses, less then 12 months	-9	-17
Fair value, 12 months or greater	1,037	524
Gross unrealized losses, 12 months or greater	-6	-1
Fair value, total	4,736	5,443
Gross unrealized losses, total	-15	-18
Corporate Debt Securities [Member]	'	'
Note 5 - Investments (Details) - Gross Unrealized Losses and Fair Values of Investments [Line Items]	'	'
Fair value, less than 12 months	3,699	4,919
Gross unrealized losses, less then 12 months	-9	-17
Fair value, 12 months or greater	1,037	524
Gross unrealized losses, 12 months or greater	-6	-1
Fair value, total	4,736	5,443
Gross unrealized losses, total	($15)	($18)

Note_5_Investments_Details_Amo

Note 5 - Investments (Details) - Amortized Cost and Fair Value of Available-For-Sale Securities (USD $)	Mar. 31, 2014	Dec. 31, 2013
Amortized Cost and Fair Value of Available-For-Sale Securities [Abstract]	'	'
Due in one year or less	$0	'
Due in one year or less	0	'
Due after one year through three years	16,826,000	'
Due after one year through three years	16,827,000	'
Total available-for-sale securities	16,826,000	'
Total available-for-sale securities	$16,827,000	$19,550,000

Note_6_LongTerm_Debt_and_Capit1

Note 6 - Long-Term Debt and Capital Leases (Details) (USD $)

Mar. 31, 2014

Dec. 31, 2013

Jun. 05, 2012

Dec. 31, 2009

Dec. 31, 2009

Jun. 05, 2012

Jun. 05, 2012

Mar. 31, 2014

Dec. 31, 2013

Dec. 31, 2009

Mar. 31, 2014

Dec. 31, 2013

Adjusted LIBO Rate [Member]

All Outstanding Letters of Credit [Member]

All Outstanding Advances [Member]

Prime Rate [Member]

The 2012 Agreement [Member]

The 2012 Agreement [Member]

The 2012 Agreement [Member]

The 2009 Agreement [Member]

The 2009 Agreement [Member]

The 2009 Agreement [Member]

Revolving Loans [Member]

The 2009 Agreement [Member]

The 2009 Agreement [Member]

Revolving Loans [Member]

Note 6 - Long-Term Debt and Capital Leases (Details) [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Facility, Maximum Borrowing Capacity

'

'

'

'

'

'

$16,000,000

'

'

$16,000,000

'

'

Line of Credit Facility, Capacity Available for Trade Purchases

'

'

'

'

'

'

10,000,000

'

'

10,000,000

'

'

Debt Instrument, Basis Spread on Variable Rate

'

'

1.25%

'

'

0.00%

'

'

'

1.38%

'

'

Line of Credit Facility, Unused Capacity, Commitment Fee Percentage

'

'

'

'

'

'

0.25%

'

'

'

'

'

Cash Collateral Balance Required by Credit Agreement

'

'

'

101.00%

100.00%

'

101.00%

'

'

'

'

'

Letters of Credit Outstanding, Amount

4,500,000

'

'

'

'

'

'

1,300,000

1,300,000

'

3,200,000

3,600,000

Restricted Cash and Cash Equivalents

8,367,000

8,779,000

'

'

'

'

'

1,300,000

1,300,000

'

'

'

Line of Credit Facility, Capacity Available for Specific Purpose Other than for Trade Purchases

'

'

'

'

'

'

'

'

'

15,900,000

'

'

Restricted Cash and Cash Equivalents, Noncurrent

$3,210,000

$4,468,000

'

'

'

'

'

'

'

'

$3,200,000

$3,700,000

Note_7_Equity_Details

Note 7 - Equity (Details) (USD $)	1 Months Ended		3 Months Ended	1 Months Ended
	Mar. 31, 2014	Feb. 28, 2014	Mar. 31, 2014	Apr. 30, 2014	Mar. 31, 2014	Mar. 31, 2014
				Subsequent Event [Member]	Certain Officers and Other Employees [Member]	An Emloyee [Member]
				President and CEO [Member]
Note 7 - Equity (Details) [Line Items]	'	'	'	'	'	'
Stock Repurchase Program, Number of Shares Authorized to be Repurchased (in Shares)	'	3,000,000	'	'	'	'
Stock Repurchase Program, Authorized Amount (in Dollars)	'	$6,000,000	'	'	'	'
Stock Repurchased During Period, Shares (in Shares)	115,300	'	'	'	'	'
Stock Repurchased During Period, Value (in Dollars)	633,000	'	'	'	'	'
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars)	$4,600,000	'	$4,600,000	'	'	'
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	'	'	'2 years 328 days	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures (in Shares)	'	'	'	440,000	957,000	10,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	'	'	'	'4 years	'4 years	'4 years
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in Dollars per share)	'	'	'	$4.96	$6	$5.32
Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Grants In Period, Expiration Period	'	'	'	'10 years	'10 years	'10 years

Note_7_Equity_Details_Sharebas

Note 7 - Equity (Details) - Share-based Compensation Expense (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'
Share based compensation expense	$581	$689
Cost of Sales [Member]	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'
Share based compensation expense	22	21
General and Administrative Expense [Member]	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'
Share based compensation expense	329	507
Selling and Marketing Expense [Member]	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'
Share based compensation expense	153	115
Research and Development Expense [Member]	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'
Share based compensation expense	$77	$46

Note_8_Income_Taxes_Details

Note 8 - Income Taxes (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'	'	'
Effective Income Tax Rate Reconciliation, Percent	1.80%	1.40%	'
Deferred Tax Assets, Valuation Allowance	'	'	$13,400,000
Deferred Income Tax Expense (Benefit)	0	'	'
Valuation Allowance, Deferred Tax Asset, Change in Amount	$0	'	'

Note_9_Commitments_and_Conting2

Note 9 - Commitments and Contingencies (Details) (USD $)	Mar. 31, 2014	Mar. 28, 2014	Mar. 28, 2014	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2014
		Product Energy Efficiency Metrics [Member]	Product Delivery Time Schedules [Member]	The 2009 Agreement [Member]	The 2012 Agreement [Member]	Minimum [Member]	Maximum [Member]
Note 9 - Commitments and Contingencies (Details) [Line Items]	'	'	'	'	'	'	'
Cancellable Open Purchase Order Arrangements	$3,200,000	'	'	'	'	'	'
Warranty and Product Performance Guarantees as Percentage of Total Sales Agreement	'	'	'	'	'	10.00%	30.00%
Warranty and Product Performance Guarantees Period	'	'	'	'	'	'24 months	'59 months
Letters of Credit Outstanding, Amount	4,500,000	'	'	3,200,000	1,300,000	'	'
Restricted Cash Used to Collateralize Irrevocable Standby Letters of Credit	4,500,000	'	'	'	'	'	'
Business Combination, Contingent Consideration, Liability	'	$1,300,000	$1,200,000	'	'	'	'

Note_9_Commitments_and_Conting3

Note 9 - Commitments and Contingencies (Details) - Operating Lease Obligations (USD $)	Mar. 31, 2014
In Thousands, unless otherwise specified
Operating Lease Obligations [Abstract]	'
2014 (remaining nine months)	$1,244
2015	1,539
2016	1,575
2017	1,567
2018	1,591
Thereafter	1,398
Total future minimum lease payments	$8,914

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, 2014	Mar. 31, 2013
Product Warranty Liability [Abstract]	'	'
Balance, beginning of period	$709	$1,172
Warranty costs charged to cost of revenue	3	97
Utilization of warranty	-7	-13
Balance, end of period	$705	$1,256

Note_10_Business_Segment_and_G2

Note 10 - Business Segment and Geographic Information (Details)	3 Months Ended
	Mar. 31, 2014
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, 2014		Mar. 31, 2013
Note 10 - Business Segment and Geographic Information (Details) - Revenues by Geographic Area [Line Items]	'		'
Revenue (in Dollars)	$3,897		$6,373
Percentage revenue	100.00%		100.00%
Domestic [Member]	'		'
Note 10 - Business Segment and Geographic Information (Details) - Revenues by Geographic Area [Line Items]	'		'
Revenue (in Dollars)	349		1,295
International [Member]	'		'
Note 10 - Business Segment and Geographic Information (Details) - Revenues by Geographic Area [Line Items]	'		'
Revenue (in Dollars)	$3,548		$5,078
ISRAEL	'		'
Note 10 - Business Segment and Geographic Information (Details) - Revenues by Geographic Area [Line Items]	'		'
Percentage revenue	13.00%		1.00%
UNITED STATES	'		'
Note 10 - Business Segment and Geographic Information (Details) - Revenues by Geographic Area [Line Items]	'		'
Percentage revenue	9.00%		20.00%
INDIA	'		'
Note 10 - Business Segment and Geographic Information (Details) - Revenues by Geographic Area [Line Items]	'		'
Percentage revenue	6.00%		14.00%
INDONESIA	'		'
Note 10 - Business Segment and Geographic Information (Details) - Revenues by Geographic Area [Line Items]	'		'
Percentage revenue	'	[1]	14.00%
Others [Member]	'		'
Note 10 - Business Segment and Geographic Information (Details) - Revenues by Geographic Area [Line Items]	'		'
Percentage revenue	72.00%	[2]	51.00%	[2]
[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 (Accounts Receivable [Member])	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Customer A [Member]	'	'
Concentration Risk [Line Items]	'	'
Customer	21.00%	19.00%
Customer B [Member]	'	'
Concentration Risk [Line Items]	'	'
Customer	18.00%	16.00%
Customer C [Member]	'	'
Concentration Risk [Line Items]	'	'
Customer	17.00%	17.00%
Customer D [Member]	'	'
Concentration Risk [Line Items]	'	'
Customer	16.00%	14.00%

Note_11_Concentrations_Details1

Note 11 - Concentrations (Details) - Revenue Concentrations (Sales Revenue, Goods, Net [Member])	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Customer E [Member]	'		'
Concentration Risk [Line Items]	'		'
Customer	16.00%		'	[1]
Customer F [Member]	'		'
Concentration Risk [Line Items]	'		'
Customer	10.00%		'	[1]
Customer G [Member]	'		'
Concentration Risk [Line Items]	'		'
Customer	'	[1]	13.00%
[1]	Less than 10%.

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, 2014		Dec. 31, 2013
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]	'		'
Total assets	$16,827		$19,550
Liabilities:	'		'
Contingent consideration	1,535	[1]	1,524	[1]
Total liabilities	1,535		1,524
Fair Value, Inputs, Level 1 [Member]	'		'
Liabilities:	'		'
Contingent consideration	'	[1]	'	[1]
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	8,017		5,856
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	8,810		13,694
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]	'		'
Total assets	16,827		19,550
Liabilities:	'		'
Contingent consideration	'	[1]	'	[1]
Fair Value, Inputs, Level 3 [Member]	'		'
Liabilities:	'		'
Contingent consideration	1,535	[1]	1,524	[1]
Total liabilities	1,535		1,524
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	8,017		5,856
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	$8,810		$13,694
[1]	Included in Accrued Expenses and Other Current Liabilities and Other Non-Current Liabilities.

Note_12_Fair_Value_Measurement3

Note 12 - Fair Value Measurements (Details) - Fair Value Measurements, Level 3 (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
Note 12 - Fair Value Measurements (Details) - Fair Value Measurements, Level 3 [Line Items]	'		'
Acquisition-related contingent consideration	$1,535	[1]	$1,524	[1]
Fair Value, Inputs, Level 3 [Member]	'		'
Note 12 - Fair Value Measurements (Details) - Fair Value Measurements, Level 3 [Line Items]	'		'
Acquisition-related contingent consideration	$1,535	[1]	$1,524	[1]
Acquisition-related contingent consideration	'Income approach		'
Acquisition-related contingent consideration	'Probability of outcome		'
Minimum [Member] | Fair Value, Inputs, Level 3 [Member]	'		'
Note 12 - Fair Value Measurements (Details) - Fair Value Measurements, Level 3 [Line Items]	'		'
Acquisition-related contingent consideration	50.00%		'
Maximum [Member] | Fair Value, Inputs, Level 3 [Member]	'		'
Note 12 - Fair Value Measurements (Details) - Fair Value Measurements, Level 3 [Line Items]	'		'
Acquisition-related contingent consideration	100.00%		'
[1]	Included in Accrued Expenses and Other Current Liabilities and Other Non-Current Liabilities.

Note_12_Fair_Value_Measurement4

Note 12 - Fair Value Measurements (Details) - Reconciliation of Assets and Liabilities Measured on a Recurring Basis Using Significant Unobservable Inputs (Contingent Consideration [Member], USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014
Contingent Consideration [Member]	'
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'
Balance	$1,524
Loss due to change in value	11
Balance	$1,535