Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
OPERATING ACTIVITIES:
Net income (loss)	$ 1,123	$ (1,154)
Adjustments to reconcile net loss from continuing operations to net cash used for operating activities:
Depreciation and amortization	238	198
Stock-based compensation expense	39	17
Gain on sale of long-term investment	(1,838)
Non-cash investment expense	93	750
Equity in loss of affiliate company	50	32
Changes in operating assets and liabilities:
Accounts receivable	(404)	110
Other current assets	166	(465)
Other long-term assets	(58)	(40)
Accounts payable	(109)	144
Accrued payroll	77	83
Deferred revenue, current portion	(337)	(384)
Accrued expenses	56	6
Other current liabilities	(49)	45
Deferred revenue, net of current portion	(52)	(106)
Net cash used for operating activities	(1,005)	(764)
INVESTING ACTIVITIES:
Purchases of property and equipment	(432)	(172)
Advances of note and interest receivable	(751)
Proceeds from sale of long-term investment	1,936	2,248
Purchase of long-term investment	(1,000)
Net cash provided by (used for) investing activities	(247)	2,076
FINANCING Activities:
Distribution of dividend to stockholders		(3,056)
Sale of capital stock pursuant to exercise of option		14
Net cash used for financing activities		(3,042)
Net cash used for operating activities of discontinued operations		120
Effects of exchange rate changes on cash	(14)	(6)
Net decrease in cash	(1,266)	(1,856)
Cash at beginning of period	17,724	18,059
Cash at end of period	16,458	16,203
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid during the period for income taxes	$ 20	$ 120