Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
OPERATING ACTIVITIES:
Net income	$ 3,817	$ 1,024
Adjustments to reconcile net income from continuing operations to net cash used for operating activities:
Depreciation and amortization	429	238
Stock-based compensation expense	44	39
Gain on sale of long-term investment		(1,838)
Non-cash investment expense	255	93
Non-cash interest income	(37)
Equity in loss of affiliate company	25	50
Changes in operating assets and liabilities:
Accounts receivable	(1,811)	(404)
Other current assets	1,249	142
Interest receivable	16
Other long-term assets	(73)	(58)
Accounts payable	(52)	(109)
Accrued payroll	724	77
Deferred revenue, current portion	70	(214)
Accrued expenses	(27)	56
Other current liabilities	341	(49)
Deferred revenue, net of current portion	16	(52)
Net cash provided by (used for) operating activities	4,986	(1,005)
INVESTING ACTIVITIES:
Purchases of property and equipment	(663)	(432)
Advances of notes receivable	(1,035)	(751)
Proceeds from sale of long-term investment		1,936
Purchase of long-term investment		(1,000)
Net cash used for investing activities	(1,698)	(247)
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	4	(14)
Net increase (decrease) in cash	3,326	(1,266)
Cash at beginning of period	14,024	17,724
Cash at end of period	17,350	16,458
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid during the period for income taxes		$ 20