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Basis of Presentation and Summary of Significant Accounting Policies (Tables)
6 Months Ended
Jun. 30, 2016
Accounting Policies [Abstract]  
Reconciliation of basic and diluted income (loss) per share
The following is a reconciliation of the numerator and denominator of the basic and diluted net (loss) income per share computations for the periods presented below (in thousands):

 
Three months ended
June 30,
 
Six months ended
June 30,
 
2016
 
2015
 
2016
 
2015
Numerator:
 
 
 
 
 
 
 
(Loss) income from continuing operations
$
(3,916
)
 
$
2,192

 
$
(5,893
)
 
$
3,416

Loss from discontinued operations

 
(81
)
 
(12
)
 
(176
)
Net (loss) income
$
(3,916
)
 
$
2,111

 
$
(5,905
)
 
$
3,240

 
 
 
 
 
 
 
 
Denominator:
 
 
 
 
 
 
 
Basic weighted average common shares outstanding
11,657

 
10,019

 
11,653

 
9,846

Potential common shares from equity awards and warrants

 
119

 

 
212

Diluted weighted average shares
11,657

 
10,138

 
11,653

 
10,058


Schedule of warranty activity
The following table summarizes warranty activity for the periods presented (in thousands):

 
Three months ended
June 30,
 
Six months ended
June 30,
 
2016
 
2015
 
2016
 
2015
Balance at beginning of period
$
327

 
$
410

 
$
314

 
$
81

Accruals for warranties issued
30

 
49

 
46

 
381

Adjustments to existing warranties
(52
)
 
(56
)
 
(52
)
 
(56
)
Settlements made during the period (in cash or in kind)
(7
)
 
(12
)
 
(10
)
 
(15
)
Accrued warranty reserve
$
298

 
$
391

 
$
298

 
$
391