Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
OPERATING ACTIVITIES:
Net income (loss)	$ 1,951	$ (348)
Adjustments to reconcile net loss from continuing operations to net cash used for operating activities:
Depreciation and amortization	253	162
Stock-based compensation expense	26	27
Non-cash investment expense	255	93
Non-cash interest income	(32)
Equity in loss of affiliate company	25	32
Changes in operating assets and liabilities:
Accounts receivable	(2,244)	(348)
Other current assets	(2,623)	210
Interest receivable	16
Other long-term assets	(92)	32
Accounts payable	(49)	(180)
Accrued payroll	352	23
Deferred revenue, current portion	72	(432)
Accrued expenses	(19)	31
Other current liabilities	123	7
Deferred revenue, net of current portion	31	(31)
Net cash used for operating activities	(1,955)	(722)
INVESTING ACTIVITIES:
Purchases of property and equipment	(515)	(71)
Advances of notes receivable	(960)
Purchase of long-term investment		(1,000)
Net cash used for investing activities	(1,475)	(1,071)
FINANCING ACTIVITIES:
Sale of capital stock pursuant to exercise of option	34
Net cash provided by financing activities	34
Effects of exchange rate changes on cash	15	(14)
Net decrease in cash	(3,381)	(1,807)
Cash at beginning of period	14,024	17,724
Cash at end of period	10,643	15,917
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid during the period for income taxes		$ 20