Interim Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 28,233	$ 28,771
Marketable security		2,521
Restricted cash	78	4,358
Prepaid expenses and other assets	457	286
Total current assets	28,768	35,936
Property and equipment, net	270	228
Operating right-of-use assets	869	962
Total assets	29,907	37,126
Current liabilities:
Accounts payables	146	284
Provision for extinguishment dispute		3,604
Lease liabilities	188	143
Accrued liabilities	517	795
Total current liabilities	851	4,826
Non current liabilities:
Long-term lease liabilities	667	760
Total liabilities	1,518	5,586
Commitments and contingencies
Stockholders' equity:
Common stock; $0.01 par value; 60,000,000 shares authorized as of June 30, 2020 and December 31, 2019 7,103,260 and 7,185,628 shares issued and outstanding as of June 30, 2020 and December 31, 2019	71	72
Additional paid-in capital	67,489	69,954
Treasury shares		(3,375)
Accumulated deficit	(39,171)	(35,111)
Total stockholders' equity	28,389	31,540
Total liabilities and stockholders' equity	$ 29,907	$ 37,126