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Note 12 - Segment Reporting (Details) - Segment Information (USD $)	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Segment Reporting Information [Line Items]
Revenue	$ 4,385,071		$ 3,450,018
Pretax (loss)/income	(48,767)		(902,386)
CVD [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	3,650,163		2,691,756
Pretax (loss)/income	(166,888)		(915,304)
SDC [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	1,011,432		869,689
Pretax (loss)/income	118,121		12,918
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue	$ (276,524)	[1]	$ (111,427)	[1]
[1] All elimination entries represent intersegment revenues eliminated in consolidation for external financial reporting.

X

- Definition

Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(h)(1)(i))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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