Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Revenues:
Product	$ 83,118		$ 129,475		$ 152,699
Service	3,042		4,542		3,788
Total revenues	86,160	[1]	134,017	[1]	156,487	[1]
Cost of revenues:
Cost of product	41,916	[2]	75,391	[2]	87,063	[2]
Cost of service	1,087	[2]	2,171	[2]	2,262	[2]
Total cost of revenues	43,003		77,562		89,325
Gross profit	43,157		56,455		67,162
Operating expenses:
Product development	22,361	[2]	30,009	[2]	34,755	[2]
Sales and marketing	16,348	[2]	21,460	[2]	25,719	[2]
General and administrative	14,644	[2]	15,050	[2]	17,897	[2]
Litigation charges	3,452		0		0
Restructuring charges	2,522		1,176		0
Total operating expenses	59,327		67,695		78,371
Loss from operations	(16,170)		(11,240)		(11,209)
Interest and other income (expense), net	(702)		(362)		6
Interest expense on lease financing obligations	(1,235)		(1,360)		(1,468)
Loss before provision for income taxes	(18,107)		(12,962)		(12,671)
Income tax expense	311		219		329
Net loss	(18,418)		(13,181)		(13,000)
Net loss attributable to non controlling interest	808		363		0
Net loss attributable to Echelon Corporation Stockholders	$ (17,610)		$ (12,818)		$ (13,000)
Net income (loss) per share:
Basic	$ (0.41)		$ (0.30)		$ (0.31)
Diluted	$ (0.41)		$ (0.30)		$ (0.31)
Shares used in computing net income (loss) per share:
Basic	43,092		42,650		42,083
Diluted	43,092		42,650		42,083

[1] 1 Includes related party amounts of $11,763 in 2013, $6,458 in 2012, and $7,119 in 2011. See Note 12 for additional information on related party transactions.

[2] 2 See Note 6 for summary of amounts included representing stock-based compensation expense.