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Stock-Based Compensation Plan (Details Textual) $ / shares in Units, ¥ in Thousands |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 15, 2015 shares | Sep. 12, 2014 USD ($) | Sep. 12, 2014 CNY (¥) | Sep. 05, 2014 USD ($) shares | Sep. 05, 2014 CNY (¥) shares | Oct. 07, 2010 USD ($) shares | Aug. 13, 2010 $ / shares shares | Jun. 19, 2015 shares | Mar. 31, 2015 USD ($) $ / shares shares | Aug. 27, 2014 $ / shares | Oct. 16, 2013 USD ($) shares | Jan. 20, 2010 USD ($) $ / shares shares | Mar. 31, 2016 $ / shares shares | Dec. 31, 2015 $ / shares shares | Dec. 31, 2014 $ / shares shares | Dec. 31, 2013 shares
Common stock, par value | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.001 | $ 0.001 |  |
Shares of company's common stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,261
Stock issued during period related to restricted stock shares | 75,000 |  |  |  |  |  |  |  |  |  | 75,000 |  |  |  |  |
Stock issued during period related to restricted stock value | $ |  |  |  |  |  |  |  |  |  |  | $ 187,500 |  |  |  |  |
Stock Issued During Period, Shares, Other |  |  |  | 13,829,074 | 13,829,074 |  |  |  |  |  |  |  |  |  |  |
Share Price | $ / shares |  |  |  |  |  |  |  |  |  | $ 1.49 |  |  | $ 1.37 |  |  |
Shares Resale Period |  |  |  |  |  |  |  |  |  | 180 days |  |  |  |  |  |
Installments One [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment received in two installments |  |  |  | $ 12,000,000 | ¥ 74,050 |  |  |  |  |  |  |  |  |  |  |
Installments Two [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment received in two installments |  | $ 6,910,000 | ¥ 42,850 |  |  |  |  |  |  |  |  |  |  |  |  |
Mr. Huang [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net number of share options granted |  |  |  |  |  |  |  |  | 40,000 |  |  |  |  |  |  |
Director One [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercised |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50,000 |
Shares of company's common stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30,575 |
Director Two [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercised |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,000
Shares of company's common stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,549 |
Director [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercised |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 60,000 | 10,000
Shares of company's common stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 36,124 |
Independent directors compensation plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share based payment award, grants |  |  |  |  |  | 40,000 |  |  | 40,000 |  |  | 40,000 |  |  |  |
Common stock, par value | $ / shares |  |  |  |  |  |  |  |  | $ 0.001 |  |  |  |  |  |  |
Grant date excersise price | $ / shares |  |  |  |  |  |  |  |  |  |  |  | $ 4.68 |  |  |  |
Estimated life |  |  |  |  |  | 5 years |  |  |  |  |  | 5 years |  |  |  |
Volatility percentage rate |  |  |  |  |  | 87.00% |  |  |  |  |  | 100.00% |  |  |  |
Risk free interest rate |  |  |  |  |  | 3.54% |  |  |  |  |  | 3.54% |  |  |  |
Dividend yield |  |  |  |  |  | 0.00% |  |  |  |  |  | 0.00% |  |  |  |
Grant date fair value | $ |  |  |  |  |  | $ 83,000 |  |  |  |  |  | $ 142,000 |  |  |  |
Compensation per month | $ |  |  |  |  |  | $ 2,000 |  |  | $ 2,000 |  |  |  |  |  |  |
Option expired |  |  |  |  |  |  |  |  |  |  |  | Jan. 19, 2015 |  |  |  |
Closing price of stock | $ / shares |  |  |  |  |  |  |  |  | $ 1.02 |  |  |  |  |  |  |
Stock Option [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share based payment award, grants |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Grant date excersise price | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 | $ 0 |
Exercised |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
2007 Plan [Member] | Stock Option [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of non vested option forfeited |  |  |  |  |  |  |  |  |  |  |  |  | 2,200,000 |  |  |
Equity Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share based payment award, grants |  |  |  |  |  |  |  | 12,462,605 |  |  |  |  |  |  |  |
Managerial and Non Managerial Employees [Member] | 2007 Plan [Member] | Stock Option [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share based payment award, grants |  |  |  |  |  |  | 2,200,000 |  |  |  |  |  |  |  |  |
Grant date excersise price | $ / shares |  |  |  |  |  |  | $ 3.05 |  |  |  |  |  |  |  |  |
Vesting terms |  |  |  |  |  |  | According to the vesting terms, the options granted were divided into three tranches, (i) 1/3 (one third) of the total number of shares subject to the options shall vest and become exercisable if the Company meets its minimum revenue and earnings goals in the Company’s guidance for 2010 as delivered in its earnings releases and/or conference calls in the first quarter of 2010, such vesting to occur immediately upon completion of the annual audit confirming the financial results for 2010; and (ii) an additional 1/3 (one third) of the total number of shares subject to the options shall vest and become exercisable if the Company meets certain financial goals of 2011 which will be set out and decided by the Compensation Committee, such vesting to occur immediately upon Compensation Committee’s determination that the Company has met such goals for 2011; and (iii) the remaining 1/3 (one third) of the total number of shares subject to the options shall vest and become exercisable if the Company meets certain financial goals of 2012 which is set out and decided by the Compensation Committee, such vesting is to occur immediately upon Compensation Committee’s determination that the Company has met such goals for 2012. |  |  |  |  |  |  |  |  |

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