Segment and Customer Information (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
Sales to external customers	$ 15,457,000	$ 12,993,000	$ 14,588,000	$ 9,572,000	$ 10,819,000	$ 9,381,000	$ 10,124,000	$ 8,534,000	$ 52,610,000	$ 38,858,000	$ 31,485,000
United States [Member]
Sales to external customers									16,930,000	8,192,000	6,781,000
United Arab Emirates [Member]
Sales to external customers									7,804,000	9,419,000	4,647,000
Norway [Member]
Sales to external customers									6,046,000	5,953,000	7,080,000
France [Member]
Sales to external customers									5,777,000	6,532,000	2,434,000
Peoples Republic Of China [Member]
Sales to external customers									2,834,000	1,651,000	4,492,000
United Kingdom [Member]
Sales to external customers									2,615,000	1,165,000	690,000
Canada [Member]
Sales to external customers									2,126,000	243,000	304,000
Singapore [Member]
Sales to external customers									2,089,000	2,293,000	2,903,000
Russia [Member]
Sales to external customers									1,467,000	737,000	713,000
Netherlands [Member]
Sales to external customers									1,122,000	576,000	365,000
Japan [Member]
Sales to external customers									906,000	680,000	851,000
Australia [Member]
Sales to external customers									839,000	409,000	45,000
Poland [Member]
Sales to external customers									219,000	44,000	0
Brazil [Member]
Sales to external customers									164,000	0	0
Others [Member]
Sales to external customers									$ 1,672,000	$ 964,000	$ 180,000