Consolidated Balance Sheets - USD ($)	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 2,822,677	$ 3,444,952
Other current assets	237,331	371,562
Total current assets	3,060,008	3,816,514
Property & equipment, net of accumulated depreciation of $0 and $3,194,029, respectively	0	50,000
Total assets	3,060,008	3,866,514
Current liabilities:
Accounts payable	298,050	377,956
Accrued expenses	428,394	625,890
Notes payable - insurance	91,871	156,642
Total current liabilities	818,315	1,160,488
Total liabilities	818,315	1,160,488
Stockholders' equity:
Preferred stock, no par value, 10,000,000 shares authorized, none issued and outstanding	0	0
Common stock, $0.01 par value, 150,000,000 shares authorized, 7,657,332 and 7,141,054 shares issued and outstanding	76,573	71,411
Additional paid in capital	164,410,992	163,954,215
Accumulated deficit	(162,245,872)	(161,319,600)
Total stockholders' equity	2,241,693	2,706,026
Total liabilities and stockholders' equity	$ 3,060,008	$ 3,866,514

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).