3. Inventories (Details Narrative) - USD ($)	Jun. 30, 2019	Dec. 31, 2018
Inventory Disclosure [Abstract]
Finished goods held by customer	$ 1,443,100	$ 1,537,300

Gross amount of inventory owned by the entity but in the hands of a customer, typically a reseller.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(6)(a))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_OtherInventoryMaterialsSuppliesAndMerchandiseUnderConsignment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant