Concentration of Credit Risk (Details Textual) (USD $)			3 Months Ended
Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2013 Customer A [Member] Accounts Receivable [Member]	Mar. 31, 2012 Customer A [Member] Accounts Receivable [Member]	Mar. 31, 2012 Customer B [Member] Accounts Receivable [Member]	Mar. 31, 2013 Customer One [Member]	Mar. 31, 2012 Customer One [Member]	Mar. 31, 2012 Customer Two [Member]
Entity-Wide Revenue, Major Customer, Percentage						10.00%	10.00%	10.00%
Accounts receivable	$ 8,398,764	$ 7,773,332	$ 1,931,000	$ 2,276,000	$ 557,000
Concentration Risk, Percentage			23.00%	30.10%	7.40%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 18

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 21

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13531-108611

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