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Stock Option Plan (Details 2) (Employee Stock Option [Member], USD $) | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Options Outstanding | 485,573 | 158,108 | 155,420
Weighted Average Remaining Life (in years) | 8 years 2 months 12 days | 7 years 9 months 18 days | 8 years 10 months 24 days
Weighted Average Exercise Price | $ 4.240 | $ 2.716 | $ 2.654
Options Exercisable | 202,718 | 137,157 |
Exercise Price Range $0.09 - $1.99 [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Range of Exercise Prices, Lower Range Limit | $ 0.09 |  |
Range of Exercise Prices, Upper Range Limit | $ 1.99 |  |
Options Outstanding | 39,753 |  |
Weighted Average Remaining Life (in years) | 7 years 8 months 12 days |  |
Weighted Average Exercise Price | $ 0.3562 |  |
Options Exercisable | 13,010 |  |
Exercise Price Range $2.00 - $4.99 [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Range of Exercise Prices, Lower Range Limit | $ 2.00 |  |
Range of Exercise Prices, Upper Range Limit | $ 4.99 |  |
Options Outstanding | 99,390 |  |
Weighted Average Remaining Life (in years) | 6 years 7 months 6 days |  |
Weighted Average Exercise Price | $ 2.9715 |  |
Options Exercisable | 99,390 |  |
Exercise Price Range $5.00 - $7.00 [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Range of Exercise Prices, Lower Range Limit | $ 5.00 |  |
Range of Exercise Prices, Upper Range Limit | $ 7.00 |  |
Options Outstanding | 346,430 |  |
Weighted Average Remaining Life (in years) | 8 years 8 months 12 days |  |
Weighted Average Exercise Price | $ 5.0494 |  |
Options Exercisable | 90,318 |  |

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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