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Note 12 - Segment Information (Details) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Operating Segments [Member] | CVD [Member]
Revenue		$ 9,969,113	$ 4,996,004	$ 18,547,485	$ 8,646,167
Pretax (loss)/income		846,558	(230,208)	1,635,645	(397,096)
Operating Segments [Member] | SDC [Member]
Revenue		1,826,896	1,316,196	3,230,953	2,327,628
Pretax (loss)/income		651,637	370,995	1,051,699	489,116
Intersegment Eliminations [Member]
Revenue	[1]	$ (1,361,856)	$ (204,882)	$ (1,651,841)	$ (481,406)
Pretax (loss)/income
Revenue		$ 10,434,153	$ 6,107,318	$ 20,126,597	$ 10,492,389
Pretax (loss)/income		$ 1,498,195	$ 140,787	$ 2,687,344	$ 92,020
[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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Period Type:	duration

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

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X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
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X

- Details

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