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Note 4 - Loss of a Key Customer and Management's Recovery Plans (Details Textual) - Scenario, Unspecified [Domain] - USD ($)			12 Months Ended
	Apr. 29, 2015	Aug. 07, 2007	Dec. 31, 2014	Jul. 01, 2015
Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Dana [Member]
Concentration Risk, Percentage			59.00%
Revolving Credit Facility [Member]
Line of Credit Facility Minimum Availability				$ 10,000,000
Litigation Settlement, Amount	$ 505,000	$ 89,900,000

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- Definition

The minimum amount of availability that must be available on a line of credit.

+ References

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 275



-SubTopic 10



-Section 50



-Paragraph 18



-URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6351-108592



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-Publisher FASB



-Name Accounting Standards Codification



-Topic 825



-SubTopic 10



-Section 50



-Paragraph 20



-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13531-108611



Reference 3: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



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-Name Accounting Standards Codification



-Topic 825



-SubTopic 10



-Section 50



-Paragraph 21



-Subparagraph (a)



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