Stock Options, Warrants and Restricted Common Stock (Other Common Stock Purchase Warrants) (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands |
1 Months Ended | 12 Months Ended | |||
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Feb. 14, 2018 |
Mar. 31, 2018 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
Proceeds from warrants exercised | $ 350 | ||||
Common Stock [Member] | |||||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
Proceeds from warrants exercised | $ 350 | ||||
Stock issued during period | 100,000 | 100,000 | 3,215 | ||
Warrant [Member] | |||||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
Options forfeited | 160,773 | ||||
Proceeds from warrants exercised | $ 400 | ||||
Warrants to purchase common stock | 1,908,144 | ||||
Exercise price | $ 1.94 | ||||
Number of warrants exercised | 13,009 | ||||
Nonqualified [Member] | |||||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
Awards outstanding | 3,574,257 | 1,671,113 | 1,944,895 |
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- Definition Number of warrants exercised. No definition available.
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- Definition Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares. No definition available.
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- Definition The cash inflow associated with the amount received from holders exercising their stock warrants. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of new stock issued during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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