Consolidated Balance Sheets - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Current Assets:
Cash and cash equivalents	$ 1,247,000	$ 1,259,000
Accounts receivable	0	103,000
Contract assets	184,000	0
Prepaid expenses and other assets	366,000	535,000
Total current assets	1,797,000	1,897,000
Fixed assets, net	498,000	644,000
Patents and other intangible assets, net	1,856,000	1,735,000
Other assets	10,000	10,000
Total Assets	4,161,000	4,286,000
Current Liabilities:
Accounts payable and accrued liabilities	768,000	755,000
Current portion of lease liabilities	159,000	150,000
Accrued compensation and taxes	607,000	669,000
Contract liabilities	0	115,000
Total current liabilities	1,534,000	1,689,000
Long Term Liabilities:
Long term lease liabilities	195,000	353,000
Total liabilities	1,729,000	2,042,000
Commitments
Stockholders' Equity:
Preferred stock, $0.0001 par value, zero shares issued and outstanding	0	0
Common stock, $0.0001 par value, 15,608,853 and 12,983,938 shares issued and outstanding at December 31, 2017 and 2016, respectively	2,000	1,000
Additional paid-in capital	52,441,000	42,574,000
Accumulated deficit	(50,011,000)	(40,331,000)
Total stockholders' equity	2,432,000	2,244,000
Total Liabilities and Stockholders' Equity	$ 4,161,000	$ 4,286,000

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).

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

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.