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Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2015

Revenue Recognition [Abstract]

Product Revenues by Geographic Location

Product revenues, classified by geographic location, are as follows:

		Three months ended																				Nine months ended

		September 30, 2015								September 30, 2014								September 30, 2015								September 30, 2014
		Product Revenues				% of Total				Product Revenues				% of Total				Product Revenues				% of Total				Product Revenues				% of Total

Americas		$	120,000				16	%		$	175,000				34	%		$	597,000				18	%		$	614,000				25	%
Japan			451,000				59	%			60,000				12	%			1,408,000				43	%			1,323,000				53	%
Europe			75,000				10	%			271,000				52	%			491,000				15	%			535,000				22	%
Asia Pacific			120,000				16	%			12,000				2	%			785,000				24	%			12,000				0	%
Total product revenues		$	766,000				100	%		$	518,000				100	%		$	3,281,000				100	%		$	2,484,000				100	%