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Stock Options and Award Programs (Details 1) - $ / shares | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Employee Stock Option [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of Shares, outstanding and exercisable, Options outstanding, Beginning Balance | 2,791,601 | 3,336,500 |
Number of Shares, Granted | 180,000 | 360,000 |
Number of Shares, Cancelled | (250,000) | (144,500) |
Number of Shares, Exercised | (863,933) | (760,399) | (155,500)
Number of Shares, outstanding and exercisable, Options outstanding, Ending Balance | 1,857,668 | 2,791,601 | 3,336,500
Number of Shares, Options vested and expected to vest, Ending Balance | 1,857,668 | 2,791,601 |
Number of Shares, Options outstanding and exercisable, Ending Balance | 1,015,996 | 1,450,763 |
Weighted Average Exercise Price per Share, outstanding and exercisable, Options outstanding, Beginning Balance | $ 0.83 | $ 0.72 |
Weighted Average Exercise Price per Share, Granted | 1.45 | 1.45 |
Weighted Average Exercise Price per Share, Cancelled | 0.74 | 0.94 |
Weighted Average Exercise Price per Share, Exercised | 0.81 | 0.61 |
Weighted Average Exercise Price per Share, outstanding and exercisable, Options outstanding, Ending Balance | 0.91 | 0.83 | $ 0.72
Number of Shares, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price, Ending Balance | 0.91 | 0.83 |
Weighted Average Exercise Price per Share, Options outstanding and exercisable, Ending Balance | $ 0.68 | $ 0.77 |
Restricted Stock [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of Shares, outstanding and exercisable, Options outstanding, Beginning Balance | 0 | 0 |
Number of Shares, Granted | 0 | 0 |
Number of Shares, Cancelled | 0 | 0 |
Number of Shares, Exercised | 0 | 0 |
Number of Shares, outstanding and exercisable, Options outstanding, Ending Balance | 0 | 0 | 0
Number of Shares, Options vested and expected to vest, Ending Balance | 0 | 0 |
Number of Shares, Options outstanding and exercisable, Ending Balance | 0 | 0 |
Weighted Average Exercise Price per Share, outstanding and exercisable, Options outstanding, Beginning Balance | $ 0 | $ 0 |
Weighted Average Exercise Price per Share, Granted | 0 | 0 |
Weighted Average Exercise Price per Share, Cancelled | 0 | 0 |
Weighted Average Exercise Price per Share, Exercised | 0 | 0 |
Weighted Average Exercise Price per Share, outstanding and exercisable, Options outstanding, Ending Balance | 0 | 0 | $ 0
Number of Shares, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price, Ending Balance | 0 | 0 |
Weighted Average Exercise Price per Share, Options outstanding and exercisable, Ending Balance | $ 0 | $ 0 |

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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 The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable 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)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The combined weighted average of the accumulated differences between the fair values on underlying shares and exercises prices to acquire such shares as of the grant date on options that were either forfeited or lapsed. + 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 (d)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to 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)(iv)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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