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Common Stock Options And Stock Purchase Plan (Tables) | 12 Months Ended
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Dec. 31, 2016
Employee Stock Option [Member] |
Schedule Of Stock Options Activity | ﻿ ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Options Outstanding
﻿ |  | Number of |  | Weighted- |  | Weighted- |  | Aggregate
﻿ |  | Shares |  | Average |  | Average |  | Intrinsic Value
﻿ |  |  |  | Exercise |  | Remaining |  | (1)
﻿ |  |  |  | Price |  | Contractual |  |
﻿ |  |  |  |  |  | Term |  |
﻿ |  |  |  |  |  | (in years) |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿Balance at January 1, 2015 |  |  | 50,000 |  | $ | 4.21 |  | 8.6 |  |  |  |
﻿Granted |  |  | 0 |  |  |  |  |  |  |  |  |
﻿Exercised |  |  | 0 |  |  |  |  |  |  |  |  |
﻿Canceled/forfeited/expired |  |  | 0 |  |  |  |  |  |  |  |  |
﻿Balance at December 31, 2015 |  |  | 50,000 |  |  | 4.21 |  | 7.6 |  |  |  |
﻿Granted |  |  | 50,000 |  |  | 3.41 |  | 10.0 |  |  |  |
﻿Exercised |  |  | 0 |  |  |  |  |  |  |  |  |
﻿Canceled/forfeited/expired |  |  | 0 |  |  |  |  |  |  |  |  |
﻿Balance at December 31, 2016 |  |  | 100,000 |  | $ | 3.81 |  | 8.7 |  |  |  |
﻿Vested and exercisable as of December 31, 2016 |  |  | 60,000 |  |  |  |  |  |  |  | $ | 3
﻿ ﻿
| (1) |  | The aggregate intrinsic value is calculated as approximately the difference between the weighted average exercise price of the underlying awards and the Company’s estimated current fair market value at December 31, 2016.
Director Stock Option [Member] |
Schedule Of Stock Options Activity |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Options Outstanding
﻿ |  | Number of |  | Weighted- |  | Weighted- |  | Aggregate
﻿ |  | Shares |  | Average |  | Average |  | Intrinsic Value
﻿ |  |  |  | Exercise |  | Remaining |  | (1)
﻿ |  |  |  | Price |  | Contractual |  |
﻿ |  |  |  |  |  | Term |  |
﻿ |  |  |  |  |  | (in years) |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿Balance at January 1, 2015 |  |  | 207,500 |  | $ | 4.62 |  | 8.4 |  |  |  |
﻿Granted |  |  | 0 |  |  |  |  |  |  |  |  |
﻿Exercised |  |  | 0 |  |  |  |  |  |  |  |  |
﻿Canceled/forfeited/expired |  |  | 0 |  |  |  |  |  |  |  |  |
﻿Balance at December 31, 2015 |  |  | 207,500 |  |  | 4.62 |  | 7.4 |  |  |  |
﻿Granted |  |  | 0 |  |  |  |  |  |  |  |  |
﻿Exercised |  |  | 0 |  |  |  |  |  |  |  |  |
﻿Canceled/forfeited/expired |  |  | 0 |  |  |  |  |  |  |  |  |
﻿Balance at December 31, 2016 |  |  | 207,500 |  | $ | 4.62 |  | 6.4 |  |  |  |
﻿Vested and exercisable as of December 31, 2016 |  |  | 162,500 |  |  |  |  |  |  |  | $ | 0
﻿ ﻿
| (1) |  | The aggregate intrinsic value is calculated as approximately the difference between the weighted average exercise price of the underlying awards and the Company’s estimated current fair market value at December 31, 2016.

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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + 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) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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