Dividends and Earnings Per Share (Details 2)	1 Months Ended	3 Months Ended
Apr. 30, 2012 Rockford 2011 earnout target	Jan. 31, 2013 Q3 Contracting	Mar. 31, 2013 Q3 Contracting
Earnings per share
Number of unregistered shares of common stock issued	232,637	29,273	29,273

Number of shares of equity interests issued or issuable to acquire entity.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Balance Type:	na
Period Type:	duration