Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
OPERATING ACTIVITIES:
Net income (loss)	$ (1,154)	$ 16,542
Income from discontinued operations		(18,723)
Income (loss) from continuing operations	(1,154)	(2,181)
Adjustments to reconcile net loss from continuing operations to net cash used for operating activities:
Depreciation and amortization	198	168
Stock-based compensation expense	17	13
Non-cash investment expense	750
Equity in loss of affiliate company	32	21
Changes in operating assets and liabilities:
Accounts receivable	110	(462)
Other current assets	(465)	(73)
Other long-term assets	(40)	25
Accounts payable	144	86
Accrued payroll	83	(68)
Deferred revenue, current portion	(384)	812
Accrued expenses	6	2
Other current liabilities	45	(43)
Deferred revenue, net of current portion	(106)	(40)
Other long-term liabilities		(18)
Net cash used for operating activities	(764)	(1,758)
INVESTING ACTIVITIES:
Purchases of property and equipment	(172)	(248)
Advances on note receivable		(150)
Proceeds from sale of long-term investment	2,248
Purchase of long-term investment		(80)
Net cash provided by (used for) investing activities	2,076	(478)
FINANCING ACTIVITIES:
Distribution of dividend to stockholders	(3,056)
Sale of capital stock pursuant to exercise of option	14	8
Repurchase of capital stock pursuant to tender offer		(692)
Net cash used for financing activities	(3,042)	(684)
Net cash used for operating activities from discontinued operations	(120)	(204)
Net cash provided by investing activities from discontinued operations		19,082
Net cash provided by (used for) discontinued operations	(120)	18,878
Effects of exchange rate changes on cash	(6)	(2)
Net increase (decrease) in cash	(1,856)	15,956
Cash at beginning of period	18,059	2,624
Cash at end of period	16,203	18,580
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid during the period for income taxes	$ 120