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Stock Warrants (Tables) | 3 Months Ended
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Mar. 31, 2017
Stock Warrants [Line Items] |
Summary of stock warrant activities |
|  | Three months ended March 31, 2017 |
|  | Number |  |  | Weight average exercise price |
Outstanding and exercisable at beginning of the period |  |  | 820,312 |  |  | $ | 1.71 |
Issued during the period |  |  | - |  |  |  | - |
Exercised during the period |  |  | - |  |  |  | - |
Cancelled or expired during the period |  |  | - |  |  |  | - |
Outstanding and exercisable at end of the period |  |  | 820,312 |  |  | $ | 1.71 |
Range of exercise price |  |  | $1.70 to $2.00
Date of Issuance August 27, 2014 to September 2, 2019 [Member] |
Stock Warrants [Line Items] |
Schedule fair value of warrants issued was estimated by using Binominal pricing model |
Terms of warrants |  |  | 5 years |
Expected volatility |  |  | 72.0 |
Risk-free interest rate |  |  | 1.69 |
Expected dividend yield |  |  | 0.81 |
Date of Issuance September 3, 2014 to June 26, 2019 [Member] |
Stock Warrants [Line Items] |
Schedule fair value of warrants issued was estimated by using Binominal pricing model |
Terms of warrants |  |  | 4.81 years |
Expected volatility |  |  | 69.8 |
Risk-free interest rate |  |  | 1.62 |
Expected dividend yield |  |  | 0.81 |

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- Definition Tabular disclosure of derivative liabilities at fair value. + References No definition available. + Details
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- Definition Tabular disclosure of share-based compensation plans that may be presented in a single table for outstanding, vested and expected to vest, and exercisable awards. The information that may be disclosed in this table may include, but is not limited to, number of shares, weighted average exercise price, weighted average remaining contractual life, and aggregate intrinsic value. + References No definition available. + Details
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