Restatement of Prior Period (Details) - USD ($)	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
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
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
Total assets	(18,069,200)		(21,007,900)	(29,006,400)
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
Accumulated deficit	(18,398,600)		(14,319,200)	(651,100)
Contingent consideration payable, less current portion	0		0	23,400
Total shareholder equity	14,845,000		17,590,500	26,277,200
Lease liabilities, less current portion	1,156,200		1,239,600	460,500
Other long-term liabilities	0		0	10,900
Total shareholders' equity	14,792,600		17,538,100	26,224,800	$ 11,721,400
Total liabilities and shareholders' equity	(18,069,200)		(21,007,900)	(29,006,400)
Total liabilities	3,276,600		3,469,800	2,781,600
Common stock, $.05 par value; 20,000,000 and 15,000,000 shares authorized; 7,023,401 and 6,477,945 shares issued; 7,003,599 and 6,458,143 shares outstanding at 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)
Goodwill	115,300		115,300	4,395,400
Deferred taxes	0		0	2,489,900
Less common stock held in treasury at cost, 19,802 shares	52,400		52,400	52,400
Total liabilities and shareholders' equity	18,069,200		21,007,900	29,006,400
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 $15,600 at 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
Other intangible assets, net	$ 1,763,000		2,079,800	2,557,800
Effect of Restatement [Member]
Total assets		$ 8,440,900	8,023,700
Total assets		(8,440,900)	(8,023,700)
Accumulated deficit		(8,440,900)	(8,023,700)
Total shareholder equity		(8,440,900)	(8,023,700)
Total shareholders' equity		(8,440,900)	(8,023,700)
Total liabilities and shareholders' equity		(8,440,900)	(8,023,700)
Goodwill		(4,280,100)	(4,280,100)
Deferred taxes		(4,160,800)	(3,743,600)
Total liabilities and shareholders' equity		8,440,900	8,023,700
As Filed [Member]
Operating lease right-of-use assets		1,442,100	1,475,500
Other assets		62,400	62,400
Total assets		27,576,100	29,031,600
Accounts payable		452,800	1,105,900
Accrued expenses		762,500	796,000
Contract liabilities			29,000
Contingent consideration, current portion			0
Bank overdraft		84,000	0
Total assets		(27,576,100)	(29,031,600)
Lease liabilities, current portion		284,400	299,300
Paycheck Protection Program loan		0	0
Liabilities of discontinued operations		0	0
Total current liabilities		1,583,700	2,230,200
Accumulated deficit		(7,587,500)	(6,295,500)
Contingent consideration payable, less current portion		0	0
Total shareholder equity		24,826,100	25,614,200
Lease liabilities, less current portion		1,218,700	1,239,600
Other long-term liabilities		0	0
Total shareholders' equity		24,773,700	25,561,800	$ 26,224,800
Total liabilities and shareholders' equity		(27,576,100)	(29,031,600)
Total liabilities		2,802,400	3,469,800
Common stock, $.05 par value; 20,000,000 and 15,000,000 shares authorized; 7,023,401 and 6,477,945 shares issued; 7,003,599 and 6,458,143 shares outstanding at June 30, 2022 and June 30, 2021		351,200	351,200
Additional paid-in capital		32,282,200	31,664,100
Accumulated comprehensive loss		(219,800)	(105,600)
Goodwill		4,395,400	4,395,400
Deferred taxes		4,160,800	3,743,600
Less common stock held in treasury at cost, 19,802 shares		52,400	52,400
Total liabilities and shareholders' equity		27,576,100	29,031,600
Cash and cash equivalents		2,437,700	2,971,100
Investment securities		5,298,600	6,391,600
Trade accounts receivable, less allowance for doubtful accounts of $15,600 at June 30, 2022 and June 30, 2021		1,141,300	1,501,400
Inventories		4,956,200	4,696,300
Income tax receivable		161,400	161,100
Prepaid expenses and other current assets		510,400	547,600
Assets of discontinued operations		0	200
Total current assets		14,505,600	16,269,300
Property and equipment, net		1,066,200	1,005,600
Other intangible assets, net		1,943,600	2,079,800
As Restated [Member]
Operating lease right-of-use assets		1,442,100	1,475,500
Other assets		62,400	62,400
Total assets		19,135,200	21,007,900
Accounts payable		452,800	1,105,900
Accrued expenses		762,500	796,000
Contract liabilities			29,000
Contingent consideration, current portion			0
Bank overdraft		84,000	0
Total assets		(19,135,200)	(21,007,900)
Lease liabilities, current portion		284,400	299,300
Paycheck Protection Program loan			0
Liabilities of discontinued operations			0
Total current liabilities		1,583,700	2,230,200
Accumulated deficit		(16,028,400)	(14,319,200)
Contingent consideration payable, less current portion		0	0
Total shareholder equity		16,385,200	17,590,500
Lease liabilities, less current portion		1,218,700	1,239,600
Other long-term liabilities		0	0
Total shareholders' equity		16,332,800	17,538,100
Total liabilities and shareholders' equity		(19,135,200)	(21,007,900)
Total liabilities		2,802,400	3,469,800
Common stock, $.05 par value; 20,000,000 and 15,000,000 shares authorized; 7,023,401 and 6,477,945 shares issued; 7,003,599 and 6,458,143 shares outstanding at June 30, 2022 and June 30, 2021		351,200	351,200
Additional paid-in capital		32,282,200	31,664,100
Accumulated comprehensive loss		(219,800)	(105,600)
Goodwill		115,300	115,300
Deferred taxes		0	0
Less common stock held in treasury at cost, 19,802 shares		52,400	52,400
Total liabilities and shareholders' equity		19,135,200	21,007,900
Cash and cash equivalents		2,437,700	2,971,100
Investment securities		5,298,600	6,391,600
Trade accounts receivable, less allowance for doubtful accounts of $15,600 at June 30, 2022 and June 30, 2021		1,141,300	1,501,400
Inventories		4,956,200	4,696,300
Income tax receivable		161,400	161,100
Prepaid expenses and other current assets		510,400	547,600
Assets of discontinued operations		0	200
Total current assets		14,505,600	16,269,300
Property and equipment, net		1,066,200	1,005,600
Other intangible assets, net		$ 1,943,600	$ 2,079,800