SeaBotix Inc. Acquisition (Details 1) (USD $)	3 Months Ended									12 Months Ended
	Jun. 30, 2012		Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2012		Jun. 30, 2011	Jun. 30, 2010
Balance					$ 3,000,000		$ 5,000,000			$ 3,000,000
Earnout paid										(2,500,000)		(2,000,000)
Increase to contingent earnout liability in June 2012	4,500,000		0	0	0	0	0	0	0	4,500,000		0	0
Balance	$ 5,000,000	[1]				$ 3,000,000		$ 5,000,000		$ 5,000,000	[1]	$ 3,000,000

[1] Refer to Note 9 to Consolidated Financial Statements for further information concerning the SBX contingent earnout liability.