Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net loss	$ (4,172,022)	$ (10,376,203)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	15,824	23,819
Stock-based compensation expense	644,113	1,278,105
Fair value adjustment on warrant liabilities		(527,025)
Amortization of loan cost and discount		1,157,817
Loss on retirement of fixed assets	5,432
Gain on disposal from discontinued operations	(186,691)
Stock compensation from discontinued operations	(2,672)	89,105
Depreciation from discontinued operations		384,051
Changes in assets and liabilities:
Receivables	143,738	1,557,584
Prepaid expenses and other current assets	(497,040)	665,323
Other assets	30,523
Current assets held for sale	92,508	88,941
Accounts payable	959,514	(1,464,496)
Current liabilities held for sale	(601,441)	195,042
Accrued expenses and other current liabilities	209,914	(688,224)
Net cash used in operations	(3,358,300)	(7,616,161)
Cash flows from investing activities:
Purchase of short-term investments	(10,023,850)
Sale of fixed assets held for sale	500,142
Purchases of equipment and furnishings		(11,478)
Net cash used in investing activities	(9,523,708)	(11,478)
Cash flows from financing activities:
Proceeds from public offering		6,512,151
Loan end fee payment		(1,771,250)
Payment of principal on term loan		(9,986,362)
Net cash provided by (used in) financing activities		(5,245,461)
Net decrease in cash and cash equivalents	(12,882,008)	(12,873,100)
Cash and cash equivalents at beginning of period	21,373,273	37,497,691
Cash and cash equivalents at end of period	8,491,265	24,624,591
Supplemental disclosure of cash flow information:
Cash paid during the period for interest		647,308
Cash paid for income taxes	$ 800	$ 800