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Intangible Assets, net | 3 Months Ended
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Mar. 31, 2018
Intangible Assets, net [Text Block] |
10. | Intangible Assets, net
Intangible assets as of December 31, 2017 and March 31, 2018 consisted of the followings:
|  |  | December 31, |  |  | March 31, |
|  |  | 2017 |  |  | 2018 |
| Computer software at cost | $ | 27,340 |  | $ | 28,345 |
| Accumulated amortization |  | (7,291 | ) |  | (8,267 | )
|  | $ | 20,049 |  | $ | 20,078 |
Amortization expenses were $646 and $699 for the three months ended March 31, 2017 and 2018, respectively.

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
Name: | us-gaap_IntangibleAssetsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration