Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
CURRENT ASSETS:
Cash and cash equivalents	$ 17,311		$ 14,648
Short-term investments	37,991		42,987
Accounts receivable, net	9,880	[1]	10,522	[1]
Inventories	5,618		6,445
Deferred cost of goods sold	1,600		1,649
Other current assets	2,199		2,040
Total current assets	74,599		78,291
Property and equipment, net	18,119		18,670
Goodwill	8,390		8,390
Other long-term assets	774		777
Total assets	101,882		106,128
CURRENT LIABILITIES:
Accounts payable	6,290		5,424
Accrued liabilities	5,552		7,395
Current portion of lease financing obligations	2,314		2,257
Deferred revenues	6,762		6,125
Total current liabilities	20,918		21,201
LONG-TERM LIABILITIES:
Lease financing obligations, excluding current portion	15,330		15,928
Other long-term liabilities	927		1,022
Total long-term liabilities	16,257		16,950
STOCKHOLDERS' EQUITY:
Common stock	466		466
Additional paid-in capital	355,567		354,680
Treasury stock	(28,130)		(28,130)
Accumulated other comprehensive income	948		1,015
Accumulated deficit	(264,816)		(260,843)
Total Echelon Corporation stockholders' equity	64,035		67,188
Noncontrolling interest in subsidiary	672		789
Total stockholders' equity	64,707		67,977
Total liabilities and stockholders' equity	$ 101,882		$ 106,128

[1] Includes related party receivable of $1.6 million as of March 31, 2014 and December 31, 2013, respectively