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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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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 | %

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