Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013
CURRENT ASSETS:
Cash and cash equivalents	$ 13,340		$ 14,648
Restricted Investments, Current	1,401		0
Short-term investments	28,829		42,987
Accounts receivable, net of allowances of $883 in 2013 and $859 in 2012	3,948	[1]	10,522	[1]
Inventories	3,243		6,445
Deferred cost of goods sold	935		1,649
Other current assets	1,084		2,040
Disposal Group, Including Discontinued Operation, Other Assets, Current	597		0
Total current assets	53,377		78,291
Property and equipment, net	10,190		18,670
Intangible Assets, Net (Excluding Goodwill)	1,413		0
Goodwill	5,936		8,390
Other long-term assets	694		777
Long-term assets of discontinued operations held for sale	36		0
Total assets	71,646		106,128
CURRENT LIABILITIES:
Accounts payable	3,614		5,424
Accrued liabilities	2,844		7,395
Current portion of lease financing obligations	2,459		2,257
Deferred revenues	3,126		6,125
Disposal Group, Including Discontinued Operation, Liabilities, Current	1,024		0
Total current liabilities	13,067		21,201
LONG-TERM LIABILITIES:
Lease financing obligations, excluding current portion	13,662		15,928
Other long-term liabilities	1,740		1,022
Total long-term liabilities	15,402		16,950
STOCKHOLDERS' EQUITY:
Preferred Stock, $0.01 par value: Authorized - 5,000,000 shares; none outstanding	0		0
Common stock, $0.01 par value: Authorized -100,000,000 shares Issued - 46,571,034 in 2013 and 46,270,136 shares in 2012, Outstanding - 43,351,850 in 2013 and 43,050,952 shares in 2012	472		466
Additional paid-in capital	356,181		354,680
Treasury stock (3,219,184 shares in 2013 and 2012)	(28,130)		(28,130)
Accumulated other comprehensive income	(431)		1,015
Accumulated deficit	(285,169)		(260,843)
Total Echelon Corporation stockholders' equity	42,923		67,188
Noncontrolling interest in subsidiary	254		789
Total stockholders' equity	43,177		67,977
Total liabilities and stockholders' equity	$ 71,646		$ 106,128

[1] 1 Includes related party amounts of $158 in 2014 and $1,628 in 2013. See Note 14 for additional information on related party transactions.