Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current Assets
Cash and cash equivalents	$ 15,100	$ 20,818
Prepaid expenses and other current assets	7,116	9,519
Total Current Assets	22,216	30,337
Property and equipment, net	501	494
Deposits and other assets	26	14
Total Assets	22,743	30,845
Current Liabilities:
Accounts payable	4,597	4,413
Accrued expenses	946	297
Warrant liabilities	11,065	10,567
Accrued employee benefits	869	277
Deferred rent	49	21
Total Current Liabilities	17,526	15,575
Long term deferred rent	240	267
Total Liabilities	$ 17,766	$ 15,842
Commitments and Contingencies
Equity:
Preferred stock, $0.001 par value; 10,000,000 shares authorized, none issued and outstanding	$ 0	$ 0
Common stock, $0.001 par value; 250,000,000 shares authorized, 90,908,234 issued and 90,826,752 outstanding and 90,908,234 issued and 90,826,752 outstanding	91	91
Additional paid-in capital	161,791	160,739
Accumulated deficit	(155,624)	(144,779)
Total Synthetic Biologics, Inc. and Subsidiaries Equity	6,258	16,051
Non-controlling interest	(1,281)	(1,048)
Total Stockholders' Equity	4,977	15,003
Total Liabilities and Stockholders' Equity	$ 22,743	$ 30,845