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Business Description, Basis of Presentation and Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2013
Accounting Policies [Abstract]  
Allowance for Doubtful Accounts Activity
The Company’s allowance for doubtful accounts activity for the years ended December 31, 2013 and 2012 was as follows:
 
Year ended December 31,
 
2013
 
2012
Balance at beginning of the year
$
60

 
$
149

Charged to costs and expenses
96

 
25

Write offs, net of recoveries
(27
)
 
(114
)
Balance at end of the year
$
129

 
$
60
Deferred Revenue and Associated Cost of Goods Sold and Gross Profit
The details of deferred revenue and associated cost of goods sold and gross profit are as follows:
 
As of December 31,
 
2013
 
2012
Deferred revenue
$
4,158

 
$
3,593

Deferred cost of goods sold
1,520

 
1,289

Deferred gross profit
$
2,638

 
$
2,304
Changes in Warranty Accrual
The details of changes in the Company’s warranty accrual are as follows:

 
Year ended December 31,
 
2013
 
2012
Balance at the beginning of year
$
385

 
$
467

Accruals/additions
433

 
443

Usage/claims
(480
)
 
(525
)
Balance at end of year
$
338

 
$
385
Earnings Per Share
Earnings Per Share – The following table sets forth the computation of basic and diluted earnings per common share:
 
Year ended December 31,
 
2013
 
2012
Numerator:
 
 
 
Net income
$
5,179

 
$
26,647

Denominator:
 
 
 
Basic weighted average shares
9,064,340

 
9,107,234

Dilutive common stock equivalents using treasury stock method
391,178

 
107,451

Diluted weighted average shares
9,455,518

 
9,214,685

 
 
 
 
Basic earnings per common share:
$
0.57

 
$
2.93

Diluted earnings per common share:
$
0.55

 
$
2.89

 
 
 
 
Weighted average options outstanding
1,128,045

 
1,197,487

Anti-dilutive options not included in the computation
149,773

 
681,820