Condensed Balance Sheets - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Current Assets:
Cash and cash equivalents	$ 7,881,000	$ 10,985,000
Prepaid expenses	174,000	203,000
Total current assets	8,055,000	11,188,000
Fixed assets, net	100,000	123,000
Patents and other intangible assets, net	3,178,000	2,881,000
Other assets	10,000	10,000
Total Assets	11,343,000	14,202,000
Current Liabilities:
Accounts payable and accrued liabilities	530,000	495,000
Accrued compensation and taxes	593,000	1,109,000
Deferred rent	16,000	20,000
Total current liabilities	$ 1,139,000	$ 1,624,000
Commitments
Stockholders’ Equity:
Preferred stock, $0.0001 par value, zero shares issued and outstanding	$ 0	$ 0
Common stock, $0.0001 par value, 12,882,471 and 12,868,943 shares issued and outstanding at March 31, 2016 and December 31, 2015, respectively	1,000	1,000
Additional paid-in capital	41,950,000	41,735,000
Accumulated deficit	(31,747,000)	(29,158,000)
Total stockholders’ equity	10,204,000	12,578,000
Total Liabilities and Stockholders’ Equity	$ 11,343,000	$ 14,202,000

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).