Quaterly financial data (Unaudited) (Details 3) - USD ($)	3 Months Ended	6 Months Ended		12 Months Ended
	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Loss/(Gain) on sale of investment securities		$ 89,200	$ (4,000)	$ 32,700	$ (35,600)
Income (Loss) from Operations		(4,079,400)	(2,105,300)	(13,668,100)	(3,672,500)
Deferred income taxes		0	733,300	(2,490,000)	1,152,500
Unrealized holding (gain)/loss on investment securities		(18,900)	32,600	233,700	10,400
Trade accounts receivable		175,600	(50,100)	(206,700)	(75,500)
Inventories		(733,600)	(637,900)	(1,719,200)	(560,000)
Prepaid and other current assets		89,400	(229,700)	(207,800)	(211,400)
Income tax receivable		(300)	267,300	172,200	1,500
Accounts payable		(191,500)	461,300	652,400	79,600
Accrued expenses and taxes		27,300	(11,100)	180,300	(195,300)
Lease Liabilities		0	(10,900)	807,900	(105,600)
Other long term liabilities		(107,600)	0	(10,900)	10,900
Net cash used in operating activities		(2,849,000)	(1,931,000)	(5,190,200)	(3,580,100)
Redemption of investment securities		2,404,200	844,300	2,709,800	6,181,400
Purchase of investment securities		(346,200)	(4,001,200)	(5,634,500)	(9,569,000)
Capital expenditures		(253,000)	(163,400)	(757,600)	(198,700)
Purchase of other intangible assets		(1,500)	(66,500)	(67,000)	(58,700)
Net cash provided by (used) in investing activities		1,803,500	(3,386,800)	(3,749,300)	(10,884,000)
Bank overdraft		0	(163,400)	(321,700)	278,600
Net cash received in financing activities		0	(163,400)	2,306,700	16,588,800
Effect of changes in foreign currency exchange rates on cash and cash equivalents		1,500	103,000	(71,300)	(9,200)
Net (decrease) increase in cash and cash equivalents		(1,044,000)	(5,378,200)	(6,704,100)	2,115,500
Cash and cash equivalents, beginning of period	$ 2,971,100	2,971,100	9,675,200	9,675,200	7,559,700
Cash and cash equivalents, end of period		1,927,100	4,297,000	2,971,100	9,675,200
Depreciation and amortization		380,800	327,300	688,200	251,500
Record right-of-use assets		104,326	0	1,010,900	0
Record lease liabilities		104,642	0	1,010,400	0
Stock-based compensation costs		1,236,700	1,266,400	2,350,600	2,108,000
Deferred income taxes		0	(733,300)	2,490,000	(1,152,500)
Effect of Restatement [Member]
Income (Loss) from Operations	(417,200)			(8,023,700)
Deferred income taxes	417,200			3,743,600
Net cash used in operating activities	0			0
Net cash provided by (used) in investing activities	0
Net (decrease) increase in cash and cash equivalents	0
Deferred income taxes	(417,200)			(3,743,600)
As Filed [Member]
Loss/(Gain) on sale of investment securities	56,900			32,700
Income (Loss) from Operations	(1,292,000)			(5,644,400)
Deferred income taxes	417,200			(1,253,600)
Unrealized holding (gain)/loss on investment securities	12,100			233,700
Trade accounts receivable	391,200			(206,700)
Inventories	(334,100)			(1,719,200)
Prepaid and other current assets	26,400			(207,800)
Income tax receivable	(300)			172,200
Operating lease right of use assets	29,700
Accounts payable	(674,800)			652,400
Accrued expenses and taxes	(11,100)			180,300
Deferred Revenue	(27,900)			0
Lease Liabilities	(32,200)			807,900
Other long term liabilities	0			(10,900)
Net cash used in operating activities	(1,466,300)			(5,190,200)
Redemption of investment securities	1,043,000			2,709,800
Purchase of investment securities	14,800			5,634,500
Capital expenditures	(160,100)			(757,600)
Purchase of other intangible assets	(1,500)			(67,000)
Payment of Finance Lease Obligations	0
Net cash provided by (used) in investing activities	866,600			(3,749,300)
Bank overdraft	84,000			(321,700)
Net cash received in financing activities	84,000			2,306,700
Effect of changes in foreign currency exchange rates on cash and cash equivalents	(17,700)			(71,300)
Net (decrease) increase in cash and cash equivalents	(533,400)			(6,704,100)
Cash and cash equivalents, beginning of period	2,971,100	2,971,100	9,675,200	9,675,200
Cash and cash equivalents, end of period	2,437,700			2,971,100	9,675,200
Depreciation and amortization	188,900			688,200
Record right-of-use assets	41,100			1,010,900
Record lease liabilities	38,800			1,010,400
Stock-based compensation costs	618,100			2,350,600
Deferred income taxes	(417,200)			1,253,600
As Restated [Member]
Loss/(Gain) on sale of investment securities	56,900			32,700
Income (Loss) from Operations	(1,709,200)			(13,668,100)
Deferred income taxes	0			(2,490,000)
Unrealized holding (gain)/loss on investment securities	12,100			233,700
Trade accounts receivable	391,200			(206,700)
Inventories	(334,100)			(1,719,200)
Prepaid and other current assets	26,400			(207,800)
Income tax receivable	(300)			172,200
Operating lease right of use assets	29,700
Accounts payable	(674,800)			652,400
Accrued expenses and taxes	(11,100)			180,300
Deferred Revenue	(27,900)			0
Lease Liabilities	(32,200)			807,900
Other long term liabilities	0			(10,900)
Net cash used in operating activities	(1,466,300)			(5,190,200)
Redemption of investment securities	1,043,000			2,709,800
Purchase of investment securities	14,800			5,634,500
Capital expenditures	(160,100)			(757,600)
Purchase of other intangible assets	(1,500)			(67,000)
Payment of Finance Lease Obligations	0
Net cash provided by (used) in investing activities	866,600			(3,749,300)
Bank overdraft	84,000			(321,700)
Net cash received in financing activities	84,000			2,306,700
Effect of changes in foreign currency exchange rates on cash and cash equivalents	(17,700)			(71,300)
Net (decrease) increase in cash and cash equivalents	(533,400)			(6,704,100)
Cash and cash equivalents, beginning of period	2,971,100	$ 2,971,100	$ 9,675,200	9,675,200
Cash and cash equivalents, end of period	2,437,700			2,971,100	$ 9,675,200
Depreciation and amortization	188,900			688,200
Record right-of-use assets	41,100			1,010,900
Record lease liabilities	38,800			1,010,400
Stock-based compensation costs	618,100			2,350,600
Deferred income taxes	$ 0			$ 2,490,000