Condensed Consolidated Balance Sheets (Unaudited) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
CURRENT ASSETS
Cash and cash equivalents	$ 8,691,000	$ 4,394,000
Investments held-to-maturity	6,477,000	16,863,000
Accounts receivable	49,000	165,000
Prepaid expenses and other current assets	409,000	364,000
TOTAL CURRENT ASSETS	15,626,000	21,786,000
PROPERTY AND EQUIPMENT
Property and equipment	3,901,000	3,784,000
Less: Accumulated depreciation and amortization	(2,015,000)	(1,797,000)
PROPERTY AND EQUIPMENT, NET	1,886,000	1,987,000
NONCURRENT ASSETS
Intangible assets, net	1,426,000	1,374,000
Restricted cash	211,000	211,000
Goodwill	808,000	817,000
Operating lease right-of-use assets	2,928,000
Other assets	68,000	69,000
TOTAL NONCURRENT ASSETS	5,441,000	2,471,000
TOTAL ASSETS	22,953,000	26,244,000
CURRENT LIABILITIES
Accounts payable	777,000	695,000
Accrued expenses	275,000	464,000
Accrued salaries and payroll related expenses	1,453,000	1,835,000
Deferred revenue	204,000	271,000
Operating lease liabilities, current	134,000
TOTAL CURRENT LIABILITIES	2,843,000	3,265,000
LONG-TERM LIABILITIES
Deferred rent		81,000
Operating lease liabilities, net of current portion	2,919,000
TOTAL LIABILITIES	5,762,000	3,346,000
Commitments and contingencies (Note 10)	0	0
STOCKHOLDERS’ EQUITY
Common stock, $0.001 par value, 47,000,000 authorized and 27,648,287 outstanding as of March 31, 2019, and 27,391,290 outstanding as of December 31, 2018	27,000	27,000
Preferred stock, $0.001 par value, 3,000,000 authorized and none outstanding as of March 31, 2019 and December 31, 2018	0	0
Additional paid-in capital	116,890,000	115,450,000
Accumulated other comprehensive loss	(25,000)	(15,000)
Accumulated deficit	(99,701,000)	(92,564,000)
TOTAL STOCKHOLDERS’ EQUITY	17,191,000	22,898,000
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 22,953,000	$ 26,244,000