Subsequent Events (Details) (USD $) In Thousands, except Share data, unless otherwise specified			0 Months Ended
	Jun. 30, 2013	Jun. 30, 2011	Jul. 22, 2013 Subsequent Event Utility Support Systems Inc.
Subsequent Event [Line Items]
Purchase price of businesss		$ 16,186	$ 4,553
Cash		13,950	2,500
Second cash payment due one year after closing date			1,803
Shares exchanged in business acquisitions			34,066
Common stock		331	250
Estimated fair value of contingent consideration	$ (675)	$ 362	$ (1,000)