Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Revenues:
Product	$ 14,207		$ 24,208		$ 30,335		$ 48,458
Service	832		628		2,495		1,560
Total revenues	15,039	[1]	24,836	[1]	32,830	[1]	50,018	[1]
Cost of revenues:
Cost of product	7,072	[2]	12,558	[2]	15,811	[2]	25,636	[2]
Cost of service	447	[2]	323	[2]	852	[2]	651	[2]
Total cost of revenues	7,519		12,881		16,663		26,287
Gross profit	7,520	[3]	11,955	[3]	16,167	[3]	23,731	[3]
Operating expenses:
Product development	4,397	[2]	5,122	[2]	9,470	[2]	11,866	[2]
Sales and marketing	3,864	[2]	4,020	[2]	7,506	[2]	8,513	[2]
General and administrative	3,580	[2]	3,234	[2]	7,350	[2]	7,120	[2]
Goodwill, Impairment Loss	3,388		0		3,388		0
Impairment of Long-Lived Assets Held-for-use	687		0		687		0
Litigation Charges	0		0		0		3,452
Restructuring charges	0		0		0		2,522
Total operating expenses	15,916		12,376		28,401		33,473
Loss from operations	(8,396)		(421)		(12,234)		(9,742)
Interest and other income, net	(70)		(164)		(59)		120
Interest expense on lease financing obligations	(280)		(312)		(568)		(633)
Loss before provision for income taxes	(8,746)		(897)		(12,861)		(10,255)
Income Tax Expense (Benefit)	106		106		81		143
Net loss	(8,852)		(1,003)		(12,942)		(10,398)
Net loss attributable to noncontrolling interest	239		176		356		324
Net loss attributable to Echelon Corporation Stockholders	$ (8,613)		$ (827)		$ (12,586)		$ (10,074)
Net loss per share:
Basic	$ (0.20)		$ (0.02)		$ (0.29)		$ (0.23)
Diluted	$ (0.20)		$ (0.02)		$ (0.29)		$ (0.23)
Shares used in computing net loss per share:
Basic	43,325		43,000		43,295		42,965
Diluted	43,325		43,000		43,295		42,965

[1] Includes related party amounts of $427 and $4,187 for the three months ended June 30, 2014 and 2013, respectively; and related party amounts of $1,976 and $6,077 for the six months ended June 30, 2014 and 2013, respectively. See Note 12 for additional information on related par

[2] See Note 4 for summary of amounts included representing stock-based compensation expense.

[3] 1 Represents unallocated share based compensation expenses considered in GAAP results as part of cost of revenues, but excluded from segment gross profit calculation as presented to the CODM. This amount has been presented to reconcile the segment gross profit to total gross profit presented in the Condensed Consolidated Statement of Operations.