Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
OPERATING ACTIVITIES:
Net income (loss)	$ 17,330	$ (955)
Income from discontinued operations	(18,799)	(1,211)
Net loss from continuing operations	(1,469)	(2,166)
Adjustments to reconcile net loss from continuing operations to net cash used for operating activities:
Depreciation and amortization	217	155
Stock-based compensation expense	19	49
Non-cash income from discontinued operations		100
Non-cash investment and interest income (loss), net	1,005	(127)
Equity in loss of affiliate company	14	1
Changes in operating assets and liabilities:
Accounts receivable, net	(461)	200
Other current assets	(2,508)	(119)
Other long term assets	22	27
Accounts payable	(12)	(41)
Accrued payroll	(87)	57
Deferred revenue, current portion	1,220	(29)
Accrued expenses	1	(182)
Other current liabilities	(31)	99
Deferred revenue, net of current portion	4
Other long-term liabilities		18
Net cash used for operating activities	(2,066)	(1,958)
INVESTING ACTIVITIES:
Purchase of marketable securities		(132)
Purchases of property and equipment	(272)	(189)
Purchase of long-term investment	(430)
Proceeds from sale of long-term investment		171
Net cash used for investing activities	(702)	(150)
FINANCING ACTIVITIES:
Sale of capital stock pursuant to exercise of option	8
Repurchase of capital stock pursuant to tender offer	(692)
Net cash used for financing activities	(684)
Net cash provided by (used for) operating activities from discontinued operations	(189)	1,377
Net cash provided by (used for) investing activities from discontinued operations	19,082	(88)
Net cash provided by discontinued operations	18,893	1,289
Effects of exchange rate changes on cash	(6)	10
Net increase (decrease) in cash	15,435	(809)
Cash at beginning of year	2,624	3,433
Cash at end of year	$ 18,059	2,624
Supplemental disclosure of cash flow information:
Cash paid for income taxes		$ 65