Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
OPERATING ACTIVITIES:
Net income	$ 6,244	$ 374
Adjustments to reconcile net income (loss) to net cash used for operating activities:
Depreciation and amortization	614	330
Stock-based compensation expense	62	52
Gain on sale of long-term investment		(1,838)
Deferred taxes	(280)
Non-cash investment expense	363	103
Non-cash interest income	(59)	(16)
Equity in loss of affiliate company	25	39
Loss on disposal of property and equipment		2
Changes in operating assets and liabilities:
Accounts receivable, net	(2,523)	121
Other current assets	1,171	(1,237)
Interest receivable	33
Other long term assets	(51)	(72)
Accounts payable	(49)	20
Accrued payroll	550	80
Deferred revenue, current portion	(72)	(498)
Accrued expenses	(27)	55
Other current liabilities	595	70
Deferred revenue, net of current portion	60	(34)
Other long-term liabilities		(18)
Net cash provided by (used in) operating activities	6,656	(2,467)
INVESTING ACTIVITIES:
Purchases of property and equipment	(865)	(894)
Advances on note and interest receivable	(1,035)	(1,250)
Purchase of long-term investment		(1,000)
Proceeds from sale of long-term investments		1,936
Net cash used for investing activities	(1,900)	(1,208)
FINANCING ACTIVITIES:
Sale of capital stock pursuant to exercise of option	111
Net cash provided by financing activities	111
Effects of exchange rate changes on cash	28	(25)
Net increase (decrease) in cash	4,895	(3,700)
Cash at beginning of year	14,024	17,724
Cash at end of year	18,919	14,024
Supplemental disclosure of cash flow information:
Cash paid for income taxes		$ 28