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Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2012

Segment Reporting [Abstract]

Summarized information about reported segment

		ZMI				ZND				ZMS				TOTAL
THREE MONTHS ENDED JUNE 30, 2012
Sales			9,973				53				—				10,026
Gross profit			8,204				36				—				8,240
Total assets			24,724				762				8				25,494
THREE MONTHS ENDED JUNE 30, 2011
Sales			8,395				—				—				8,395
Gross profit			6,668				—				—				6,668
Total assets			18,670				14				10				18,694

		ZMI				ZND				ZMS				TOTAL
SIX MONTHS ENDED JUNE 30, 2012
Sales			18,842				128				—				18,970
Gross profit			15,285				86				—				15,371
Total assets			24,724				762				8				25,494
SIX MONTHS ENDED JUNE 30, 2011
Sales			15,028				—				—				15,028
Gross profit			11,857				—				—				11,857
Total assets			18,670				14				10				18,694

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- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 22

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8736-108599



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 25

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8813-108599



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 131

-Paragraph 27, 28

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 30

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599



Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 21

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8721-108599

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