Commitments and Contingencies (Details) (USD $)		0 Months Ended	3 Months Ended			0 Months Ended
	Jun. 30, 2013	Dec. 29, 2011 Medical Outsourcing Services, LLC [Member] Claim	Mar. 31, 2013 Medical Outsourcing Services, LLC [Member]	Feb. 17, 2012 Medical Outsourcing Services, LLC [Member]	Jan. 25, 2012 Medical Outsourcing Services, LLC [Member]	Mar. 27, 2013 Superior MRI Services, Inc. [Member]
Commitments and Contingencies [Line Items]
Liability related to guarantees and indemnities	$ 0
Amount received for damages for breach of contract claims		2,527,000
Prejudgment interest (percent)		9.00%
Other indemnification claims		255,000
Number of indemnification claims		2
Attorney's fees and expenses		1,453,000
Arbitration expenses		110,000
Remaining indemnification cap for future claims		1,300,000
Amount received from former Medical Outsourcing Services for acquisition				592,000	665,000
Amount paid by former medical outsourcing services for acquisition.			1,198,000
Cumulative amount received from former Medical Outsourcing Services for acquisition			5,300,000
Amount paid under settlement			2,400,000
Damages sought, minimum						$ 1,000,000