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Business Description, Basis of Presentation and Significant Accounting Policies - Summary of Significant Accounting Policies (Tables) | 9 Months Ended
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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 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 + Details
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