Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 18,396,182	$ 5,918,587
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	90,322	92,736
Amortization of intangible assets	435,571	482,792
Stock based compensation	380,758	0
Bad debt expense	338,185	0
Forgiveness of payroll protection plan loan	(487,300)	0
Disposal of intangible assets	140,192	38,498
Amortization of right of use assets	386,407	361,533
Deferred tax (benefit)	550,640	1,344,787
Increase (decrease) in cash due to change in:
Accounts receivable	13,103,973	(11,855,351)
Inventories	10,807,884	(10,730,663)
Prepaid expenses and other current assets	(23,396)	6,454
Advance payments to vendors	(12,792)	23,502
Other assets	142,830	(25,272)
Accounts payable	(32,364,266)	36,410,741
Income tax payable	298,790	34,059
Lease liabilities	(399,285)	(316,462)
Accrued liabilities	319,504	218,363
Net cash provided by operating activities	12,104,199	22,004,304
CASH FLOW FROM INVESTING ACTIVITIES:
Purchases of short-term investments	(4,116)	(1,692)
Purchases of shares of a subsidiary	0	(75,000)
Purchases of property and equipment	(21,043)	(181,746)
Payments for capitalized product development costs	(694,909)	(343,360)
Purchases of intangible assets	(2,452)	(193,171)
Net cash used in investing activities	(722,520)	(794,969)
CASH FLOW FROM FINANCING ACTIVITIES:
Proceeds of payroll protection plan loan	0	487,300
Sales of common stock sold from treasury stock	6,000,008	0
Cash received from exercise of stock options	74,751	33,128
Net cash provided by financing activities	6,074,759	520,428
Effect of foreign currency translation	177,924	(15,624)
Net increase in cash and cash equivalents	17,634,362	21,714,139
Cash and cash equivalents, beginning of year	28,161,644	6,447,505
Cash and cash equivalents, end of year	45,796,006	28,161,644
Supplemental disclosure of cash flow information:
Cash paid during the periods for: Income taxes	(4,124,485)	(800)
Non-cash investing and financing activities:
Initial adoption of right to use assets	0	1,501,203
Initial adoption of lease liabilities	$ 0	$ 1,501,203