Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
CURRENT ASSETS:
Cash and cash equivalents	$ 7,727	$ 9,803
Restricted investments	1,250	1,250
Short-term investments	11,973	11,983
Accounts receivable, net	3,607	3,015
Inventories	2,636	2,570
Deferred cost of revenues	1,229	1,104
Other current assets	1,305	900
Total current assets	29,727	30,625
Property and equipment, net	360	445
Intangible assets, net	840	953
Other long-term assets	863	885
Total assets	31,790	32,908
CURRENT LIABILITIES:
Accounts payable	2,235	1,697
Accrued liabilities	1,732	2,174
Deferred revenues	3,838	3,671
Total current liabilities	7,805	7,542
LONG-TERM LIABILITIES:
Other long-term liabilities	703	688
Total long-term liabilities	703	688
STOCKHOLDERS’ EQUITY:
Common stock	48	48
Additional paid-in capital	358,967	358,123
Treasury stock	(28,130)	(28,130)
Accumulated other comprehensive loss	(2,108)	(2,437)
Accumulated deficit	(305,749)	(303,180)
Total Echelon Corporation stockholders’ equity	23,028	24,424
Noncontrolling interest in subsidiary	254	254
Total stockholders’ equity	23,282	24,678
Total liabilities and stockholders’ equity	$ 31,790	$ 32,908