Summary of Significant Accounting Policies (Details) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Summary of Significant Accounting Policies [Abstract]
Trade receivable		$ 545,000		$ 545,000		$ 549,000
Grants receivable		434,000		434,000		493,000
Allowance for doubtful accounts		101,000		101,000		$ 101,000
Property, Plant and Equipment [Line Items]
Foreign currency gain (loss) included in comprehensive loss		(317,000)	$ (41,000)	(318,000)	$ (148,000)
Foreign currency transaction gain (loss)		283,000	152,000	77,000	141,000
Income Taxes [Abstract]
Accrued interest and penalties	$ 0	0	0	0	0
Deferred income tax benefit		$ (1,271,000)	(1,513,000)	(2,448,000)	(2,862,000)
Deferred income tax benefit, federal				(2,600,000)	(2,440,000)
Deferred income tax expense (benefit), state taxes				$ 154,000	(420,000)
Number of shares sold by subsidiary (in shares)	5,000,000
Taxable gain on sale of subsidiary shares	$ 10,300,000		10,300,000		10,300,000
Tax payable on sale of subsidiary shares	$ 3,600,000		$ 3,600,000		$ 3,600,000
Finite-Lived Intangible Assets [Line Items]
Intangible asset, useful life				10 years
Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Equipment useful life				36 months
Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Equipment useful life				120 months
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset, useful life				10 years
Treasury Shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from computation of diluted loss per share (in shares)		4,893,942	5,398,542	4,893,942	5,398,542
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from computation of diluted loss per share (in shares)		4,212,543	5,424,426	4,212,543	5,424,426
Warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from computation of diluted loss per share (in shares)		9,190,782	9,195,002	9,190,782	9,195,002