Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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

-Publisher FASB

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

-Publisher FASB

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

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

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 1

-Article 5

+ Details

- Definition

The cash outflow for acquisition of buildings (properties) whether for investment or use.

+ References+ Details

- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References+ Details

Investment in Affiliated Partnership (Details) (USD $)					1 Months Ended	6 Months Ended
Investment in Affiliated Partnership (Details) (USD $)	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011	Dec. 31, 2010	Feb. 29, 2012 UDT	Jun. 30, 2012 UDT	Dec. 31, 2011 UDT
Investment in Affiliated Partnership
Ownership interest (as a percent)						26.32%
Purchase of manufacturing building					$ 1,350,000
Remaining ownership interest acquired (as a percent)					73.68%
Non-controlling interests' portion of the excess of the amount paid for building over the carrying value					535,481
Amounts related to UDT included in the condensed consolidated balance sheets
Cash	29,236,694	29,848,798	26,278,669	22,102,634			278,475
Net property, plant, and equipment	17,054,548	13,346,457					651,032
Accrued expenses	$ 5,173,628	$ 5,540,163					$ 14,400