Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Revenues:
Product	$ 17,175		$ 28,056		$ 65,633		$ 107,387
Service	839		1,008		2,399		2,832
Total revenues	18,014	[1]	29,064	[1]	68,032	[1]	110,219	[1]
Cost of revenues:
Cost of product	7,348	[2]	16,672	[2]	32,984	[2]	63,352	[2]
Cost of service	211	[2]	493	[2]	862	[2]	1,601	[2]
Total cost of revenues	7,559		17,165		33,846		64,953
Gross profit	10,455		11,899		34,186		45,266
Operating expenses:
Product development	5,294	[2]	7,256	[2]	17,160	[2]	23,450	[2]
Sales and marketing	3,991	[2]	4,807	[2]	12,504	[2]	16,512	[2]
General and administrative	3,925	[2]	3,679	[2]	11,045	[2]	11,624	[2]
Litigation Charges	0		0		3,452		0
Restructuring charges	0		0		2,522		1,176
Total operating expenses	13,210		15,742		46,683		52,762
Loss from operations	(2,755)		(3,843)		(12,497)		(7,496)
Interest and other income (expense), net	(606)		(184)		(486)		(194)
Interest expense on lease financing obligations	(305)		(336)		(938)		(1,031)
Loss before provision for income taxes	(3,666)		(4,363)		(13,921)		(8,721)
Income tax expense	113		57		256		148
Net loss	(3,779)		(4,420)		(14,177)		(8,869)
Net loss attributable to non controlling interest	266		156		590		156
Net loss attributable to Echelon Corporation Stockholders	$ (3,513)		$ (4,264)		$ (13,587)		$ (8,713)
Net loss per share:
Basic	$ (0.08)		$ (0.10)		$ (0.32)		$ (0.20)
Diluted	$ (0.08)		$ (0.10)		$ (0.32)		$ (0.20)
Shares used in computing net loss per share:
Basic	43,184		42,806		43,039		42,564
Diluted	43,184		42,806		43,039		42,564

[1] Includes related party amounts of $2,523 and $1,768 for the three months ended September 30, 2013 and 2012, respectively, and $8,600 and $3,527 for the nine months ended September 30, 2013 and 2012, respectively. See Note 12 for additional information on related par

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