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Note 7 - Capital Leased Assets (Details Textual)	1 Months Ended
	Nov. 30, 2003	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)
Capital Leases, Balance Sheet, Assets by Major Class, Net, Total		$ 6,198,000		$ 6,360,000
Capital Leased Asset, Equipment for Landfill Operation [Member]
Capital Leases, Balance Sheet, Assets by Major Class, Net, Total		100,000		100,000
Golf and Related Operations [Member]
Capital Leases, Balance Sheet, Assets by Major Class, Net, Total		$ 800,000		$ 800,000
Squaw Creek Country Club Lease [Member]
Initial Lease Term	10 years
Number of Consecutive Renewal Term Options	4
Renewal Lease Term	10 years
Capital Leases, Future Minimum Payments Due, Next Twelve Months			$ 15,000
Leasehold Improvements Required to be Made Per Year			$ 150,000

X

- Definition

The initial term of the lease.

+ References

No definition available.

+ Details

Name:	awx_InitialLeaseTerm
Namespace Prefix:	awx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the amount of leasehold improvements required to be made per year.

+ References

No definition available.

+ Details

Name:	awx_LeaseholdImprovementsRequiredToBeMadePerYear
Namespace Prefix:	awx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Represents the number of consecutive renewal term options.

+ References

No definition available.

+ Details

Name:	awx_NumberOfConsecutiveRenewalTermOptions
Namespace Prefix:	awx_
Data Type:	xbrli:positiveIntegerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The renewal of the lease term.

+ References

No definition available.

+ Details

Name:	awx_RenewalLeaseTerm
Namespace Prefix:	awx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The total gross amount less the charge for the use of the long-lived depreciable assets subject to a lease meeting the criteria for capitalization.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737

+ Details

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

X

- Definition

Amount of minimum lease payments for capital leases due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737

+ Details

Name:	us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=awx_CapitalLeasedAssetEquipmentForLandfillOperationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=awx_GolfAndRelatedOperationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LeaseArrangementTypeAxis=awx_SquawCreekCountryClubLeaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: