Long-term debt (Details) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Summary of long term debt
Total long term debt, Current Portion	$ 409,964	$ 407,095
Total long term debt, Long Term Portion	1,428,659	1,532,286
Term loan [Member]
Summary of long term debt
Total long term debt, Current Portion	392,528	389,075
Total long term debt, Long Term Portion	1,413,318	1,512,754
Capitalized equipment leases [Member]
Summary of long term debt
Total long term debt, Current Portion	17,436	18,020
Total long term debt, Long Term Portion	$ 15,341	$ 19,532

Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year or the normal operating cycle, if longer plus capital lease obligations due to be paid more than one year after the balance sheet date.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

-Section H

Name:	us-gaap_LongTermDebtAndCapitalLeaseObligations
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant