Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands		Mar. 31, 2016	Dec. 31, 2015
CURRENT ASSETS:
Cash and cash equivalents		$ 5,288	$ 7,691
Restricted Investments, Current		1,401	1,401
Short-term investments		16,993	16,978
Accounts receivable, net	[1]	4,219	4,030
Inventories		3,327	2,893
Deferred cost of goods sold		1,086	1,122
Other current assets		1,071	1,109
Total current assets		33,385	35,224
Property and equipment, net		535	595
Intangible assets, net		1,126	1,183
Other long-term assets		1,055	1,044
Total assets		36,101	38,046
CURRENT LIABILITIES:
Accounts payable		2,403	2,267
Accrued liabilities		1,475	2,885
Deferred revenues		3,270	3,359
Total current liabilities		7,148	8,511
LONG-TERM LIABILITIES:
Other long-term liabilities		713	614
Total long-term liabilities		713	614
STOCKHOLDERS' EQUITY:
Common stock		47	47
Additional paid-in capital		356,822	356,746
Treasury stock		(28,130)	(28,130)
Accumulated other comprehensive income		(1,398)	(1,594)
Accumulated deficit		(299,355)	(298,402)
Total Echelon Corporation stockholders' equity		27,986	28,667
Noncontrolling interest in subsidiary		254	254
Total stockholders' equity		28,240	28,921
Total liabilities and stockholders' equity		$ 36,101	$ 38,046

[1] Includes related party receivable of $866 and $827 as of March 31, 2016 and December 31, 2015, respectively