Significant Customer Concentration (Tables)

9 Months Ended

Sep. 30, 2012

Significant Customer Concentration [Abstract]

Significant customer concentration

Significant Customer Concentration:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
Customer A		14	%		24	%		10	%		23	%
Customer B		9	%		6	%		8	%		9	%