Short-Term Investment (Details Textual) - USD ($)	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017
Short-Term Investment (Textual)
Interest income earned from short-term investments	$ 24,115	$ 4,675

Amount before accretion (amortization) of purchase discount (premium) of interest income and dividend income on nonoperating securities.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7(a),(b))
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

Name:	us-gaap_InvestmentIncomeInterestAndDividend
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration