Condensed Consolidated Statements of Cash Flows - USD ($)	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
CASH FLOWS FROM OPERATING ACTIVITIES
Net Loss	$ (6,064,000)	$ (4,373,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	301,000	227,000
Stock-based compensation	798,000	680,000
Non-cash investment income	(1,000)	(11,000)
Non-cash patent write-off	14,000	0
Changes in assets and liabilities:
Prepaids and other current assets	95,000	(115,000)
Accounts payable	182,000	45,000
Accrued expenses	50,000	(98,000)
Accrued salaries and payroll related expenses	36,000	109,000
Deferred rent	(17,000)	(18,000)
Net cash used in operating activities	(4,606,000)	(3,554,000)
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(236,000)	(168,000)
Expenditures for patents and domain names	(105,000)	(165,000)
Purchase of restricted cash investment	0	(100,000)
Redemption of investments held-to-maturity	3,006,000	10,000,000
Purchase of investments held-to-maturity	(4,249,000)	(9,989,000)
Net cash used in investing activities	(1,584,000)	(422,000)
CASH FLOWS FROM FINANCING ACTIVITIES
Net proceeds from the sale of common stock from private placement offering	5,177,000	0
Payment of tax withholdings on net issuance of common stock for compensation	0	(45,000)
Net cash provided by (used in) financing activities	5,177,000	(45,000)
NET DECREASE IN CASH AND CASH EQUIVALENTS	(1,013,000)	(4,021,000)
CASH AND CASH EQUIVALENTS — Beginning of period	2,501,000	5,803,000
CASH AND CASH EQUIVALENTS — End of period	1,488,000	1,782,000
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Interest	0	0
Taxes Paid	1,000	1,000
SUPPLEMENTAL DISCLOSURE OF NON-CASH ACTIVITIES
Issuance of common stock in settlement of liability	$ 110,000	$ 0