Assets Held for Sale (Textual) (Details) (USD $)	1 Months Ended	3 Months Ended			9 Months Ended
	Mar. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2014	Sep. 30, 2013
Assets Held for Sale [Abstract]
Asset impairment charges				$ 1,571,000
Proceeds from sale of subsidiary	1,500,000
Research & development equipment reclassified as held for use		333,000	333,000
Loss on exchange of assets		188,000	188,000
Change in estimated fair value of research equipment		130,000	568,000
Assets held for sale	1,394,000	0	292,000	2,179,000	0
Long Lived Assets Held-for-sale [Line Items]
Proceeds from sale of property and equipment	760,000				166,000	150,000
Gain (Loss) on Disposition of Property Plant Equipment					$ 115,000	$ (62,000)