CONSOLIDATED BALANCE SHEETS - USD ($)	Dec. 31, 2022	Jun. 30, 2022	Jun. 30, 2021
Current assets:
Cash and cash equivalents	$ 1,927,100	$ 2,971,100	$ 9,675,200
Investment securities	4,272,100	6,391,600	3,744,600
Trade accounts receivable, less allowance for doubtful accounts of $33,600, $15,600 and $15,600 at December 31, 2022, June 30, 2022 and June 30, 2021	1,312,900	1,501,400	1,294,700
Inventories	4,859,600	4,696,300	2,977,100
Income tax receivable	161,400	161,100	333,300
Prepaid expenses and other current assets	456,800	547,600	350,900
Assets of discontinued operations	0	200	55,300
Total current assets	12,989,900	16,269,300	18,431,100
Property and equipment, net	1,163,200	1,005,600	412,600
Goodwill	115,300	115,300	4,395,400
Other intangible assets, net	1,763,000	2,079,800	2,557,800
Inventories	606,000	0	0
Deferred taxes	0	0	2,489,900
Operating lease right-of-use assets	1,373,600	1,475,500	665,300
Other assets	58,200	62,400	54,300
Total assets	18,069,200	21,007,900	29,006,400
Current liabilities:
Accounts payable	887,300	1,105,900	453,500
Accrued expenses	821,800	796,000	633,500
Contract liabilities	134,400	29,000	0
Contingent consideration, current portion	0	0	136,600
Bank overdraft	0	0	321,700
Lease liabilities, current portion	276,900	299,300	270,500
Paycheck Protection Program loan	0	0	433,800
Liabilities of discontinued operations	0	0	37,200
Total current liabilities	2,120,400	2,230,200	2,286,800
Contingent consideration payable, less current portion	0	0	23,400
Lease liabilities, less current portion	1,156,200	1,239,600	460,500
Other long-term liabilities	0	0	10,900
Total liabilities	3,276,600	3,469,800	2,781,600
Shareholders' equity:
Common stock, $.05 par value; 20,000,000, 20,000,000 and 15,000,000 shares authorized; 7,023,401, 7,023,401 and 6,477,945 shares issued; 7,003,599, 7,003,599 and 6,458,143 shares outstanding at December 31, 2022, June 30, 2022 and June 30, 2021	351,200	351,200	324,000
Additional paid-in capital	32,900,800	31,664,100	26,613,500
Accumulated comprehensive loss	(8,400)	(105,600)	(9,200)
Accumulated deficit	(18,398,600)	(14,319,200)	(651,100)
Total shareholder equity	14,845,000	17,590,500	26,277,200
Less common stock held in treasury at cost, 19,802 shares	52,400	52,400	52,400
Total shareholders' equity	14,792,600	17,538,100	26,224,800
Total liabilities and shareholders' equity	$ 18,069,200	$ 21,007,900	$ 29,006,400