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Basis of Presentation and Summary of Significant Accounting Policies (Tables)
 3 Months Ended
Mar. 31, 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
March 31,
 
2016
 
2015
Numerator:
 
 
 
(Loss) income from continuing operations
$
(1,977
)
 
$
1,224

Loss from discontinued operations
(12
)
 
(95
)
Net (loss) income
$
(1,989
)
 
$
1,129

 
 
 
 
Denominator:
 
 
 
Basic weighted average common shares outstanding
11,650

 
9,671

Potential common shares from options and warrants
—

 
322

Diluted weighted average shares
11,650

 
9,993
Schedule of warranty activity
The following table summarizes warranty activity for the periods presented (in thousands):

 
Three months ended
March 31,
 
2016
 
2015
Balance at beginning of period
$
314

 
$
81

Accruals for warranties issued
16

 
332

Settlements made during the period (in cash or in kind)
(3
)
 
(3
)
Accrued warranty reserve
$
327

 
$
410