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Bank Loans (Details Textual) - USD ($) |  |  |  |  | 1 Months Ended | 3 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Jan. 08, 2019 | Oct. 01, 2018 | Sep. 06, 2017 | Jun. 12, 2017 | Jan. 21, 2019 | Jan. 18, 2019 | Jul. 19, 2017 | Apr. 30, 2017 | Jun. 28, 2016 | Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018
Cathay United Loan Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Bank Loans (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  | $ 2,430,050 | $ 243,000 |  |  |  |  |  | $ 243,000 |  |  |
Maturity date |  |  |  |  |  |  |  |  | Jun. 28, 2017 |  |  |
Debt instrument term |  | 1 year | 1 year |  |  |  |  |  | 1 year |  |  |
Bears interest floating rate |  |  |  |  |  |  |  |  | 1.15% | 2.22% |  | 2.22%
Debt instrument due date |  | Sep. 06, 2019 | Sep. 06, 2018 |  |  |  |  |  |  |  |  |
Interest expenses |  |  |  |  |  |  |  |  |  | $ 1,330 | $ 1,402 |
Cathay United Loan Agreement [Member] | NT [Member] |  |  |  |  |  |  |  |  |  |  |  |
Bank Loans (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  | $ 7,500,000 | $ 7,500,000 |  |  |  |  |  | $ 7,500,000 |  |  |
CTBC Loan Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |
Bank Loans (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  | $ 324,000 |  |  | $ 324,000 |  |  |  |  |
Maturity date |  |  |  | Jan. 19, 2018 |  | Jul. 18, 2019 | Jan. 19, 2018 |  |  |  |  |
Debt instrument term |  |  |  | 1 year |  |  | 1 year |  |  |  |  |
Bears interest floating rate |  |  |  |  |  | 1.63% |  |  |  |  |  |
Interest expenses |  |  |  |  |  |  |  |  |  | 2,604 | 2,736 |
CTBC Loan Agreements [Member] | NT [Member] |  |  |  |  |  |  |  |  |  |  |  |
Bank Loans (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  | $ 10,000,000 |  |  | $ 10,000,000 |  |  |  |  |
Loan Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Bank Loans (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  | $ 1,000,000 |  |  |  |  |  |  |
Maturity date |  |  |  |  | Jan. 01, 2020 |  |  |  |  |  |  |
Interest expenses |  |  |  |  |  |  |  |  |  | $ 9,527 | 0 |
Received loan amount |  |  |  |  | $ 500,000 |  |  |  |  |  |  |
Exceeding amount | $ 500,000 |  |  |  |  |  |  |  |  |  |  |
Regular interest rate, description |  |  |  |  | The Note executed in connection with the Cathay Loan Agreement bears an interest rate (the "Regular Interest Rate") equal to the sum of one percent (1%) and the prime rate as published in the Wall Street Journal (the "Index") and the accrued interest shall become payable each month from February 1, 2019. Pursuant to the Note, the Company shall pay the entire outstanding principal plus accrued unpaid interest on the Maturity Date and may prepay portion or all of the Note before the Maturity Date without penalty. If the Company defaults on the Note, the default interest rate shall become five percent (5%) plus the Regular Interest Rate. |  |  |  |  |  |  |
Cathay United Bank [Member] |  |  |  |  |  |  |  |  |  |  |  |
Bank Loans (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Maturity date |  |  |  |  |  |  |  | Apr. 30, 2020 |  |  |  |
Bears interest floating rate |  |  |  |  |  |  |  |  |  | 2.24% |  | 2.24%
Interest expenses |  |  |  |  |  |  |  |  |  | $ 284 | $ 680 |
Cathay United Bank [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Bank Loans (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Bears interest floating rate |  |  |  |  |  |  |  | 0.77% |  |  |  |
Cathay United Bank [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Bank Loans (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Bears interest floating rate |  |  |  |  |  |  |  | 1.17% |  |  |  |
Cathay United Bank [Member] | April 30, 2010 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Bank Loans (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  | $ 288,360 |  |
Maturity date |  |  |  |  |  |  |  |  |  | Apr. 30, 2017 |  |
Debt instrument term |  |  |  |  |  |  |  |  |  | 7 years |  |
Cathay United Bank [Member] | NT [Member] | April 30, 2010 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Bank Loans (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  | $ 8,900,000 |  |

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