Income Taxes (Tables)

12 Months Ended

Dec. 31, 2016

Income Taxes [Abstract]

Schedule Of Net Loss Before Income Taxes

	For the Years Ended
	December 31,
	2016		2015
Domestic, current	$	(8,048)	$	(4,105)
Total	$	(8,048)	$	(4,105)

Schedule Of Deferred Taxes

	For the Years Ended
	December 31,
	2016		2015
Deferred tax assets:
Federal and state net operating loss carryforwards	$	43,083	$	38,943
Research and development tax credit carryforwards		2,196		2,279
Stock based compensation		4,438		4,057
Other provision and expenses not currently deductible		1,335		1,297
Total deferred tax assets		51,052		46,576
Deferred tax liabilities:
Depreciation and amortization		(1,141)		(965)
Prepaid expenses		(95)		(116)
Total deferred liabilities		(1,236)		(1,081)
Less valuation allowance		(49,816)		(45,495)
Net deferred tax asset	$	—	$	—

Schedule Of Federal Net Operating Losses And Tax Credit Carryforwards

		Net		Research and
		Operating		Development
		Losses		Tax Credits
	(in thousands)
2018-2021	$	44,639	$	809
2022-2025		42,814		-
2026-2036		38,294		1,387
	$	125,747	$	2,196

Schedule Of Reconciliation Of Effective Tax Rate

	For the Years Ended
	December 31,
	2016			2015
U.S. Federal income tax benefit at federal statutory rate		34	%		34	%
Change in valuation allowance		(37)			(36)
Credits		3			2
Effective tax rate		-	%		-	%