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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2014
Accounting Policies [Abstract]  
Activities in allowance for doubtful accounts
Year  Balance at
Beginning of
Year		  Charged to
Costs and
Expenses		  Amounts
Written Off		  Balance at
End of
Year
                       
 2014   $89,058   $—     $—     $89,058 
 2013   $89,058   $—     $—     $89,058 
Inventory components
   December 31,
   2014  2013
Raw materials and sub-assemblies   $930,886   $1,045,356 
Finished goods    26,441    59,732 
   $957,327  $1,105,088
Major customers as a percentage of net accounts receivable balances
   December 31,  December 31,
   2014  2013
Company A    42%   43%
Company B    25%   28%
Company C    14%   14%
Reserves for product warranty costs
Year  Balance at
Beginning of Year		  Additional Warranty Reserves  Amounts
Charged to Reserves		  Balance at
End of
Year
                       
 2014   $69,554   $44,817   $(35,500)  $78,871 
 2013   $74,554   $40,562   $(45,562)  $69,554 
Net income (loss) per share applicable to common stockholders
   Years Ended December 31,
   2014  2013
Numerator:          
   Net income (loss)   $432,117  $(620,493)
 
Denominator:		          
Weighted average shares outstanding used in computing
net income (loss) per share:		          
          Basic    5,005,579   4,865,036
          Diluted    5,250,914   4,865,036
 Net income (loss) per share applicable to common
stockholders:		          
          Basic   $0.09  $(0.13)
          Diluted   $0.08  $(0.13)
Revenue by geographic areas
   Years Ended December 31,
Revenues: (in thousands)  2014  2013
   United States   $12,840   $10,918 
   Europe    2,864    2,728 
   Asia and rest of world    1,317    2,015 
   $17,021  $15,661
Revenue by product families
   Years Ended December 31,
Revenues: (in thousands)  2014  2013
Cordless barcode scanning and related product and
service		  $13,665   $9,747 
Mobile handheld computer and related product and
service 		   3,256    5,287 
OEM and legacy products    100    627 
   $17,021  $15,661
Major customers accounted for at least 10% of total revenues
   Years Ended December 31,
   2014  2013
Ingram Micro Inc.    31%   20%
Scansource, Inc.    19%   20%
BlueStar, Inc.    17%   15%