Segment and Customer Information (Details 1) (USD $)	3 Months Ended								12 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Sales to external customers	$ 17,921,000	$ 11,243,000	$ 14,410,000	$ 14,268,000	$ 15,457,000	$ 12,993,000	$ 14,588,000	$ 9,572,000	$ 57,842,000	$ 52,610,000	$ 38,858,000
United States [Member]
Sales to external customers									22,160,000	16,930,000	8,192,000
Norway [Member]
Sales to external customers									10,268,000	6,046,000	5,953,000
United Arab Emirates [Member]
Sales to external customers									6,039,000	7,804,000	9,419,000
France [Member]
Sales to external customers									5,618,000	5,777,000	6,532,000
Peoples Republic of China [Member]
Sales to external customers									3,572,000	2,834,000	1,651,000
Singapore [Member]
Sales to external customers									1,649,000	2,089,000	2,293,000
Netherlands [Member]
Sales to external customers									1,609,000	1,122,000	576,000
United Kingdom [Member]
Sales to external customers									1,250,000	2,615,000	1,165,000
Russia [Member]
Sales to external customers									1,031,000	1,467,000	737,000
Canada [Member]
Sales to external customers									848,000	2,126,000	243,000
Australia [Member]
Sales to external customers									634,000	839,000	409,000
Japan [Member]
Sales to external customers									582,000	906,000	680,000
Brazil [Member]
Sales to external customers									308,000	164,000	0
Other
Sales to external customers									$ 2,274,000	$ 1,891,000	$ 1,008,000