CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash flows from operating activities
Net income (loss)	$ (1,874,042)	$ 1,799,360
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	591,384	572,184
Stock-based compensation	3,752	0
Bad debts reserve	1,559	(202,905)
Inventory reserve	(28,390)	180,164
Deferred asset allowance	0	(37,518)
Loss on sale of property and equipment	0	12
(Increase) decrease in:
Accounts receivable	1,235,162	2,692,726
Deferred asset	0	762,012
Inventory	5,681,721	3,466,369
Payments in advance	(503,679)	5,079
Prepaid expenses and other current assets	(294,959)	865,006
Income tax refunds receivable	101,993	0
Long-term accounts receivable	65,564	0
Deposits	(1,317)	924
Increase (decrease) in:
Accounts payable and accrued expenses	(1,984,795)	(858,760)
Income taxes payable	0	(2,026,505)
Deferred compensation	0	(400,000)
Net cash provided by operating activities	2,993,953	6,818,148
Cash flows from investing activities
Capital expenditures	(239,094)	(265,819)
Net cash used in investing activities	(239,094)	(265,819)
Cash flows from financing activities
Repayment of notes payable to bank	(55,890)	(52,141)
Repayment of short-term loan, net	(735,363)	(738,228)
Net cash used in financing activities	(791,253)	(790,369)
Effect of exchange rates on cash and cash equivalents	18,922	(867,308)
Net increase in cash and cash equivalents	1,982,528	4,894,652
Cash and cash equivalents - beginning of period	11,347,420	7,102,945
Cash and cash equivalents - end of period	13,329,948	11,997,597
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid for interest	42,210	42,127
Cash paid for income taxes	26,633	2,846,403
Other noncash investing and financing activities
Common stock issued for services	$ 3,752	$ 0