Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Revenues	$ 131,000	$ 244,000	$ 632,000
Costs and expenses:
Cost of revenues	3,444,000	3,004,000	1,558,000
Research and development	2,784,000	4,125,000	5,992,000
Selling, general and administrative	5,146,000	5,838,000	5,389,000
Total costs and expenses	11,374,000	12,967,000	12,939,000
Loss from operations	(11,243,000)	(12,723,000)	(12,307,000)
Other Income and Expense
Gain from investment in Resonant LLC joint venture			3,142,000
Adjustments to fair value of warrant derivatives	183,000	4,852,000	480,000
Adjustment to warrant exercise price	(66,000)	(537,000)
Other income	10,000	13,000	434,000
Other expense		(207,000)
Net loss	$ (11,116,000)	$ (8,602,000)	$ (8,251,000)
Basic and diluted net loss per common share	$ (3.53)	$ (6.55)	$ (9.67)
Basic and diluted weighted average number of common shares outstanding	3,148,376	1,313,753	852,929