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Business Description, Basis of Presentation and Significant Accounting Policies - Summary of Significant Accounting Policies (Tables)
 9 Months Ended
Sep. 30, 2013
Accounting Policies [Abstract]  
Schedule of Product Warranty Liability
The details of changes in the Company’s warranty accrual are as follows:

 
September 30, 2013

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

 
$
467

Warranty accruals/additions
354

 
443

Warranty usage
(374
)
 
(525
)
Balance at end of period
$
365

 
$
385
Schedule of Earnings Per Share, Basic and Diluted
Earnings Per Share – The following table sets forth the computation of basic and diluted earnings per common share:

 
Three months ended September 30,
 
Nine months ended September 30,
 
2013
 
2012
 
2013
 
2012
Numerator:
 
 
 
 
 
 
 
Net income
$
1,663

 
$
1,004

 
$
3,438

 
$
2,132

Denominator:
 
 
 
 
 
 
 
Basic weighted average shares outstanding
9,027,764

 
9,113,713

 
9,090,903

 
9,106,455

Dilutive common stock equivalents using treasury stock method
379,177

 
79,861

 
394,905

 
112,706

Diluted weighted average shares outstanding
9,406,941

 
9,193,574

 
9,485,808

 
9,219,161

 
 
 
 
 
 
 
 
Basic earnings per common share
$
0.18

 
$
0.11

 
$
0.38

 
$
0.23

Diluted earnings per common share
$
0.18

 
$
0.11

 
$
0.36

 
$
0.23

 
 
 
 
 
 
 
 
Weighted average options outstanding
1,143,283

 
1,215,747

 
1,131,575

 
1,195,599

Anti-dilutive options not included in the computations
167,845

 
799,203

 
157,197

 
799,203