Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
CURRENT ASSETS:
Cash and cash equivalents	$ 7,962	$ 9,803
Restricted investments	1,250	1,250
Short-term investments	11,974	11,983
Accounts receivable, net	3,062	3,015
Inventories	2,752	2,570
Deferred cost of revenues	1,247	1,104
Other current assets	1,489	900
Total current assets	29,736	30,625
Property and equipment, net	398	445
Intangible assets, net	782	953
Other long-term assets	863	885
Total assets	31,779	32,908
CURRENT LIABILITIES:
Accounts payable	2,302	1,697
Accrued liabilities	2,024	2,174
Deferred revenues	4,096	3,671
Total current liabilities	8,422	7,542
LONG-TERM LIABILITIES:
Other long-term liabilities	679	688
Total long-term liabilities	679	688
STOCKHOLDERS’ EQUITY:
Common stock	48	48
Additional paid-in capital	359,028	358,123
Treasury stock	(28,130)	(28,130)
Accumulated other comprehensive loss	(1,921)	(2,437)
Accumulated deficit	(306,601)	(303,180)
Total Echelon Corporation stockholders’ equity	22,424	24,424
Noncontrolling interest in subsidiary	254	254
Total stockholders’ equity	22,678	24,678
Total liabilities and stockholders’ equity	$ 31,779	$ 32,908