INCOME TAXES (Tables)
 12 Months Ended
Dec. 31, 2017
Income Tax Disclosure [Abstract]  
Provision for Income Taxes
The reconciliation between our provision for income taxes and the amounts computed by multiplying our loss before taxes by the U.S. statutory tax rate is as follows (in thousands):
 
 
 
December 31,
 
 
 
2017
 
2016
 
Benefit at U.S. statutory 34% tax rate
 
$
(1,978)
 
$
(2,512)
 
State taxes (benefit), net of federal effect
 
 
(203)
 
 
(254)
 
State research and development tax credits
 
 
105
 
 
49
 
Federal research and development tax credits
 
 
(70)
 
 
-
 
Share-based compensation
 
 
116
 
 
159
 
Federal AMT tax credit
 
 
(135)
 
 
-
 
Other
 
 
(3)
 
 
2
 
Tax Cuts and Jobs Act of 2017
 
 
26,603
 
 
-
 
Change in valuation allowance
 
 
(24,570)
 
 
2,556
 
(Benefit) provision for income taxes
 
$
(135)
 
$
-
 
Components Of Deferred Tax Assets
The components of our deferred tax assets are as follows (in thousands):
 
 
 
December 31,
 
 
 
2017
 
2016
 
Deferred tax assets:
 
 
 
 
 
 
 
Estimated future value of NOLs
 
 
 
 
 
 
 
- Federal
 
$
1,028
 
$
47,192
 
- State
 
 
1,276
 
 
2,135
 
Research and development tax credits
 
 
 
 
 
 
 
- Federal
 
 
1,231
 
 
1,161
 
- State
 
 
-
 
 
159
 
Share-based compensation
 
 
66
 
 
57
 
Other, net
 
 
203
 
 
332
 
Total deferred taxes
 
 
3,804
 
 
51,036
 
Valuation allowance
 
 
(3,804)
 
 
(51,036)
 
Net deferred tax assets
 
$
-
 
$
-