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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2015
Income Tax Disclosure [Abstract]  
Deferred tax assets and liabilities
Significant components of the Company’s deferred tax assets and liabilities are as follows (in thousands):
 
December 31,
 
2015
 
2014
Deferred tax assets and liabilities:
 
 
 
Accruals and prepaids
$
4,606

 
$
3,563

Intangible assets
146

 
619

Property and equipment
(1,396
)
 
(770
)
R&D and other tax credits
3,293

 
2,086

Stock compensation
7,063

 
4,163

Charitable contributions

 
1

Federal and state basis difference
145

 
114

Net operating loss
1,763

 
6,382

Net deferred tax assets
$
15,620

 
$
16,158

 
 
 
 
Valuation allowance
(782
)
 
(16,158
)
 
$
14,838

 
$

Reconciliation of the Federal statutory income tax
The reconciliation of the Federal statutory income tax rate of 34% to the effective rate is as follows:
 
December 31,
 
2015
 
2014
Federal statutory rate
34.00
 %
 
34.00
 %
State taxes, net of federal benefit
3.33
 %
 
9.58
 %
Non deductible compensation
0.63
 %
 
5.59
 %
Meals & entertainment
2.27
 %
 
5.55
 %
Stock based compensation - ISO
6.39
 %
 
21.73
 %
Other
(4.58
)%
 
(5.92
)%
Valuation allowance
(63.33
)%
 
(58.73
)%
 
(21.29
)%
 
11.80
 %
Schedule of current and deferred income tax expense (benefit)
Current and deferred income tax expense (benefit) is as follows (in thousands):
 
December 31, 2015

December 31, 2014

Current:
 
 
   Federal
$
8,452

$

   State
1,218

832

      Total current
9,670

832

 
 
 
Deferred:
 
 
   Federal
(13,070
)

   State
(1,768
)

      Total deferred
(14,838
)

 
 
 
Total expense
$
(5,168
)
$
832

Reconciliation of unrecognized tax benefits
The following is a tabular reconciliation of the total amounts of unrecognized tax benefits (in thousands):

 
December 31, 2015

December 31, 2014

Unrecognized tax benefits - January 1
$

$

 
 
 
Gross increases - tax positions in current period
170


 
 
 
Unrecognized tax benefits - December 31
$
170

$