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Summary of Significant Accounting Policies (Details) (USD $)
In Thousands, except Share data, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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Dec. 31, 2012
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Sep. 30, 2012
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Jun. 30, 2012
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Mar. 31, 2012
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Dec. 31, 2011
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Sep. 30, 2011
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Jun. 30, 2011
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Mar. 31, 2011
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Dec. 31, 2012
item
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Dec. 31, 2011
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Dec. 31, 2010
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| Numerator: | |||||||||||
| Net income (in dollars) | $ 1,804 | $ 1,352 | $ 1,304 | $ 1,029 | $ 1,974 | $ 1,494 | $ 1,228 | $ 843 | $ 5,489 | $ 5,539 | $ 4,421 |
| Denominator: | |||||||||||
| Weighted average shares (Basic) | 4,476 | 4,412 | 4,386 | ||||||||
| Dilutive effect of outstanding options and nonvested shares of restricted stock | 152 | 194 | 114 | ||||||||
| Weighted average shares including assumed conversions (Diluted) | 4,628 | 4,606 | 4,500 | ||||||||
| Basic net income per share (in dollars per share) | $ 0.40 | $ 0.30 | $ 0.29 | $ 0.23 | $ 0.45 | $ 0.34 | $ 0.28 | $ 0.19 | $ 1.23 | $ 1.26 | $ 1.01 |
| Diluted net income per share (in dollars per share) | $ 0.39 | $ 0.29 | $ 0.28 | $ 0.22 | $ 0.43 | $ 0.33 | $ 0.26 | $ 0.18 | $ 1.19 | $ 1.20 | $ 0.98 |
| Concentration of Credit Risk | |||||||||||
| Marketable securities in insured certificates of deposit | $ 4,411 | $ 5,375 | $ 4,411 | $ 5,375 | |||||||
| Revenue Recognition | |||||||||||
| Number of criteria | 4 | ||||||||||
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Equipment | Minimum
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| Equipment and leasehold improvements | |||||||||||
| Useful lives of assets | 3 years | ||||||||||
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Equipment | Maximum
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| Equipment and leasehold improvements | |||||||||||
| Useful lives of assets | 5 years | ||||||||||
| X | ||||||||||
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- Definition
The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale which are intended to be held for less than one year or the normal operating cycle, whichever is longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Represents the number of criteria to be fulfilled for recognition of revenue of software and hardware products and maintenance agreement sales. No definition available.
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