Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
OPERATING ACTIVITIES:
Net income	$ 1,326,000	$ 3,131,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,927,000	3,655,000
Stock-based compensation expense	585,000	150,000
Deferred income taxes	(159,000)	22,000
Equity in loss of affiliate company	438,000	686,000
Changes in operating assets and liabilities:
Accounts receivable, net	439,000	7,110,000
Other current assets	(933,000)	(449,000)
Other long-term assets	210,000	362,000
Accounts payable	(104,000)	(489,000)
Accrued payroll	(22,000)	115,000
Deferred revenue, current portion	(738,000)	630,000
Accrued expenses	20,000	352,000
Other current liabilities	(588,000)	(44,000)
Deferred revenue, net of current portion	(60,000)	(110,000)
Net cash provided by operating activities	2,341,000	15,121,000
INVESTING ACTIVITIES:
Purchases of property and equipment	(2,753,000)	(4,013,000)
Proceeds from payments on notes receivable	100,000	110,000
Advances on notes receivable	(200,000)	0
Purchase of marketable securities	1,089,000	852,000
Maturities of marketable securities	1,023,000	726,000
Net cash used for investing activities	(2,919,000)	(4,029,000)
FINANCING ACTIVITIES:
Repurchases of common stock	3,701,000	439,000
Net cash used for financing activities	(3,701,000)	(439,000)
Effects of exchange rate changes on cash	(50,000)	(47,000)
Net (decrease) increase in cash	(4,329,000)	10,606,000
Cash at beginning of period	26,918,000	20,399,000
Cash at end of period	22,589,000	31,005,000
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid during the period for income taxes	1,086,000	920,000
Purchases of property and equipment, accrued but not paid	$ 162,000	$ 110,000