Accounts Payable and Accrued Expenses (Details) - USD ($)	Sep. 30, 2019	Dec. 31, 2018
Accounts Payable and Accrued Expenses
Accounts payable	$ 542,000	$ 707,000
Clinical trial	870,000	407,000
Insurance premiums	294,000
Professional fees	130,000	99,000
Accrued compensation	87,000
Property taxes	72,000	97,000
BLA consulting services	58,000	15,000
Directors Fees	51,000
Other	26,000
Total accrued expenses	1,588,000	618,000
Accounts payable and accrued expenses	$ 2,129,736	$ 1,324,651