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Note 6 - Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Product Warranty Liability [Table Text Block]

		2012				2011
Balance at beginning of year		$	839			$	1,314
Accruals for warranties issued			370				591
Settlements made			(602	)			(1,066	)
Balance at end of year		$	607			$	839

X

- Definition

Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249

+ Details

Name:	us-gaap_ScheduleOfProductWarrantyLiabilityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration