Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
OPERATING ACTIVITIES:
Net income	$ 3,247	$ 4,180
Depreciation and amortization	691	428
Stock-based compensation expense	123	80
Non-cash investment expense	1,009
Non-cash interest income	(55)	(18)
Equity in loss of affiliate company	176
Changes in operating assets and liabilities:
Accounts receivable	623	(392)
Other current assets	(153)	432
Other long-term assets	(9)	29
Accounts payable	28	162
Accrued payroll	(854)	27
Deferred revenue, current portion	4,112	33
Accrued expenses	85	34
Other current liabilities	705	1,010
Deferred revenue, net of current portion	(14)	(51)
Net cash provided by operating activities	9,714	5,954
INVESTING ACTIVITIES:
Purchases of property and equipment	(2,767)	(1,521)
Advances of notes receivable	(1,000)	(1,500)
Net cash used for investing activities	(3,767)	(3,021)
FINANCING ACTIVITIES:
Sale of capital stock pursuant to exercise of option		59
Net cash provided by financing activities		59
Effects of exchange rate changes on cash	(46)	(36)
Net increase in cash	5,901	2,956
Cash at beginning of period	26,415	18,919
Cash at end of period	32,316	21,875
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid during the period for income taxes		$ 250