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Shareholders' Equity - Summary of Warrant Activities (Details) - Warrants [Member] - $ / shares | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Warrants Outstanding, beginning balance | 72,000 | 132,000
Warrants Granted |  |
Warrants Exercised |  |
Warrants Forfeited | (72,000) | (60,000)
Warrants Outstanding, ending balance |  | 72,000
Warrants Exercisable |  |
Weighted Average Exercise Price Per Share Outstanding, beginning balance | $ 20.00 | $ 33.64
Weighted Average Exercise Price Per Share Granted |  |
Weighted Average Exercise Price Per Share Exercised |  |
Weighted Average Exercise Price Per Share Forfeited |  |
Weighted average exercise price per share outstanding, ending balance |  | $ 20.00
Weighted average exercise price per share exercisable |  |
Weighted Average Remaining Contractual Life (in years) Outstanding, beginning balance | 10 months 14 days | 2 years 2 months 5 days
Weighted average remaining contractual life (in years) Outstanding, ending balance | 0 years | 10 months 14 days
Weighted average remaining contractual life (in years) exercisable | 0 years |

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- Definition The number of shares into which fully or partially vestednon-option equity outstanding as of the balance sheet date can be currently converted under the non-option equity plan. + References No definition available. + 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 non-option equity outstanding and currently exercisable under the non-option equity plan. + References No definition available. + Details
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- Definition Weighted average price at which non-option equity holders acquired shares when converting their non-option equity into shares. + References No definition available. + Details
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- Definition Weighted average price at which non-option equity holders acquired shares when converting their non-option equity into shares. + References No definition available. + Details
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- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of non-option equity. + References No definition available. + Details
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- Definition Weighted average remaining contractual term for vested portions of non-option equity outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock non-option equity plan. + References No definition available. + Details
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- Definition Weighted average remaining contractual term for non-option equity awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Weighted average remaining contractual term for non-option equity awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Number of non-option equity instruments exercised by participants. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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=109197908&loc=d3e5070-113901 + Details
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- Definition Number of shares under non-option equity instrument agreements that were cancelled as a result of occurrence of a terminating event. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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=109197908&loc=d3e5070-113901 + Details
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- Definition Net number of non-option equity instruments granted to participants. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Number of equity instruments other than options outstanding, including both vested and non-vested instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -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=109197908&loc=d3e5070-113901 + Details
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