XML 29 R19.htm IDEA: XBRL DOCUMENT v3.19.2

Reclassification	6 Months Ended
	Jun. 30, 2019
Text Block [Abstract]
Reclassification	11. Reclassification—Certain items may have been reclassified in the prior period condensed consolidated financial statements to conform with the June 30, 2019 presentation.

X

- Definition

Disclosure of certain items which may have been reclassified (if appropriate), in the prior period consolidated financial statements to conform with the current presentation.

+ References

No definition available.

+ Details

Name:	avd_DisclosureOfReclassificationTextBlock
Namespace Prefix:	avd_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_TextBlockAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration