Condensed Consolidated Statements of Cash Flows - USD ($)	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash Flows From Operating Activities:
Net Loss	$ (12,236,000)	$ (10,229,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation	246,000	1,708,000
Subsidiary stock issued to consultant	104,000	0
Warrant issued to consultant	0	9,000
Change in fair value of warrant liabilities	0	(4,064,000)
Depreciation and amortization	182,000	207,000
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	(600,000)	268,000
Right of use asset	86,000	0
Accounts payable	1,419,000	(1,141,000)
Accrued expenses	1,403,000	(41,000)
Accrued employee benefits	(713,000)	(640,000)
Lease Liability	(159,000)	0
Deferred rent	0	(66,000)
Net Cash Used In Operating Activities	(10,268,000)	(13,989,000)
Cash Flows From Investing Activities:
Net Cash Provided by (Used in) Investing Activities, Total	0	0
Cash Flows From Financing Activities:
Proceeds from issuance ATM offering, net of issuance costs	0	6,422,000
Net Cash Provided By Financing Activities	0	6,422,000
Net decrease in cash	(10,268,000)	(7,567,000)
Cash and cash equivalents at beginning of period	28,918,000	17,116,000
Cash and cash equivalents at end of period	18,650,000	9,549,000
Noncash Financing Activities:
Right of use asset from operating lease	538,000	0
Deemed dividends for beneficial conversion feature	585,000	0
In-kind dividends paid in preferred stock	185,000	181,000
Series B Preferred Stock [Member]
Noncash Financing Activities:
Conversion of Series B Preferred Stock	$ 938,000	$ 0