Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 779	$ 973
Restricted cash	299	290
Accounts receivable, net	690	665
Inventory, net	366	261
Deferred charges	712	803
Other current assets	136	144
Total current assets	2,982	3,136
Property and equipment, net	71	73
Other assets	733	710
Total assets	3,786	3,919
Current liabilities:
Short-term credit	140
Accounts payable	323	246
Accrued expenses	327	430
Deferred revenue	2,679	2,734
Due to former Acorn director (resigned as of August 6, 2018) (Note 3)	250	250
Other current liabilities	142	127
Total current liabilities	3,861	3,787
Non-current liabilities:
Deferred revenue	1,372	1,327
Due to former Acorn director (resigned as of August 6, 2018) (Note 3)	53	33
Other non-current liabilities	5	2
Total non-current liabilities	1,430	1,362
Commitments and contingencies
Deficit:
Acorn Energy, Inc. shareholders Common stock - $0.01 par value per share: Authorized - 42,000,000 shares; Issued - 30,357,706 and 30,357,706 shares at March 31, 2019 and December 31, 2018, respectively	304	304
Additional paid-in capital	100,346	100,340
Warrants	1,118	1,118
Accumulated deficit	(100,301)	(100,064)
Treasury stock, at cost - 801,920 shares at March 31, 2019 and December 31, 2018	(3,036)	(3,036)
Total Acorn Energy, Inc. shareholders' deficit	(1,569)	(1,338)
Non-controlling interests	64	108
Total deficit	(1,505)	(1,230)
Total liabilities and deficit	$ 3,786	$ 3,919