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Note 16 - Income Taxes (Details) - Aggregate Changes in Balance of Gross Unrecognized Tax Benefits - USD ($) | 12 Months Ended
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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

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- 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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- 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

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- References No definition available. + Details
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Namespace Prefix: | west_
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Balance Type: | na
Period Type: | duration