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Equity - Summary of Warrant Activity (Details) - $ / shares | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015
Equity - Summary Of Stock Option Plans Details |  |
Number of shares warrants, outstanding at beginning of year | 2,619,423 | 2,642,423
Number of shares warrants, granted | 35,000 |
Number of shares warrants, exercised |  |
Number of shares warrants, forfeited or expired |  | (23,000)
Number of shares warrants, outstanding and exercisable at end of year | 2,654,423 | 2,619,423
Weighted average exercise price, outstanding at beginning of year | $ 1.48 | $ 1.50
Weighted average exercise price, granted | 0.13 |
Weighted average exercise price, exercised |  |
Weighted average exercise price, forfeited or expired |  | 3.68
Weighted average exercise price, outstanding and exercisable at end of year | $ 1.46 | $ 1.48

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- Definition Number of non-option equity instruments exercised by participants. + 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)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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