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Note 16 - Income Taxes (Details) - Aggregate Changes in Balance of Gross Unrecognized Tax Benefits - USD ($)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Aggregate Changes in Balance of Gross Unrecognized Tax Benefits [Abstract]
Balance, beginning of year	$ 147,000	$ 140,000
Balance, end of year	147,000	147,000
Additions for tax positions related to prior years	$ 0	$ 7,000

X

- Definition

Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Unrecognized Tax Benefit
-URI http://asc.fasb.org/extlink&oid=6527854

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

+ Details

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Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

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Namespace Prefix:	west_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration