4. Inventories (Details Narrative) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Finished goods held by customer	$ 1,200,000	$ 2,300,000
In-transit inventory	$ 6,100,000	$ 6,200,000

Gross amount of merchandise or supplies to which the entity holds the title but does not hold physical possession because the goods are currently being transported.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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=120391452&loc=d3e13212-122682

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