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Note 14 - Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2012

Reconciliation of Revenue from Segments to Consolidated [Table Text Block]

2012		CVD				SDC				Eliminations *				Consolidated
Revenue		$	6,505,330			$	976,951			$	(388,496	)		$	7,093,785
Pretax income			400,325				80,315								480,640
2011
Revenue		$	6,482,466			$	1,652,531			$	(627,280	)		$	7,507,717
Pretax income			858,632				304,802								1,163,434

2012		CVD				SDC				Eliminations *				Consolidated
Revenue		$	12,722,329			$	2,450,893			$	(924,486	)		$	14,248,736
Pretax income			1,222,513				317,923								1,540,436
2011
Revenue		$	12,194,241			$	2,685,678			$	(1,166,502	)		$	13,713,417
Pretax income			1,710,438				363,957								2,074,395

X

- Definition

Tabular disclosure of all significant reconciling items in the reconciliation of total revenues from reportable segments to the entity's consolidated revenues.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 31

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8924-108599



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 30

-Subparagraph (a)

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



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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 131

-Paragraph 32

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

+ Details

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