Annual report pursuant to Section 13 and 15(d)

Selected Quarterly Financial Data (Unaudited) (Details)

v2.4.1.9
Selected Quarterly Financial Data (Unaudited) (Details) (USD $)
3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Selected Quarterly Financial Data [Abstract]                      
Total Revenue $ 56,518us-gaap_Revenues $ 54,417us-gaap_Revenues $ 56,909us-gaap_Revenues $ 65,583us-gaap_Revenues $ 61,028us-gaap_Revenues $ 20,609us-gaap_Revenues $ 21,362us-gaap_Revenues $ 19,669us-gaap_Revenues $ 233,427,011us-gaap_Revenues $ 122,667,769us-gaap_Revenues $ 67,461,468us-gaap_Revenues
Gross profit 19,066us-gaap_GrossProfit 15,484us-gaap_GrossProfit 17,437us-gaap_GrossProfit 25,599us-gaap_GrossProfit 25,423us-gaap_GrossProfit 7,632us-gaap_GrossProfit 9,613us-gaap_GrossProfit 5,016us-gaap_GrossProfit 77,586,188us-gaap_GrossProfit 47,684,479us-gaap_GrossProfit 25,890,996us-gaap_GrossProfit
Net income from continuing operations 33,335us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest 14,195us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest 14,842us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest 23,389us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest 29,820us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest 5,044us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest 7,939us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest 4,333us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest 85,760,705us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest 47,135,794us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest 24,280,268us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
Net income from discontinued operations $ 0us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax $ 0us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax $ 0us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax $ 0us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax $ 12,449us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax $ 12,363us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax $ 17,759us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax $ 9,340us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax    $ 51,910,662us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax $ 84,494,428us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax
Basic and diluted earnings per share from continuing operations $ 0.42us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare $ 0.18us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare $ 0.19us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare $ 0.30us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare $ 0.38us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare $ 0.06us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare $ 0.10us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare $ 0.06us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare $ 1.08us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare $ 0.60us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare $ 0.32us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare
Basic and diluted earnings per share from discontinued operations $ 0.00us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicAndDilutedShare $ 0.00us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicAndDilutedShare $ 0.00us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicAndDilutedShare $ 0.00us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicAndDilutedShare $ 0.16us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicAndDilutedShare $ 0.16us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicAndDilutedShare $ 0.22us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicAndDilutedShare $ 0.12us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicAndDilutedShare $ 0.00us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicAndDilutedShare $ 0.66us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicAndDilutedShare $ 1.09us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicAndDilutedShare