CONDENSED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities
Net income	$ 990,972	$ 7,616,455
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,938,921	696,846
Net unrealized gain on investments	(1,492,011)	(3,331,109)
Realized (gain) loss on investments	(746,262)	38,378
Accreted interest	9,157	21,097
Deferred taxes	230,917	5,071,519
Provision for doubtful accounts	370,573
Share-based compensation		1,132,078
Other income - TIA	(1,557,779)	(355,089)
(Increase) decrease in operating assets:
Accounts receivable	(1,849,918)	15,332,107
Inventories	(1,414,879)	1,732,909
Other current assets	(533,279)	(57,627)
Income taxes receivable	1,100,847
Other assets	11,178
Increase (decrease) in operating liabilities:
Accounts payable	(1,034,169)	(7,113,028)
Accrued liabilities	276,150	(439,435)
Income taxes payable		714,326
Net cash provided (used) by operating activities	(3,699,582)	21,059,427
Cash flows from investing activities
Purchase of property, plant, and equipment	(467,530)	(4,969,045)
Purchase of debt and equity securities	(15,918,837)	(4,066,575)
Proceeds from the sales of equity securities	6,784,228	1,924,769
Net cash used by investing activities	(9,602,139)	(7,110,851)
Cash flows from financing activities
Repayments of long-term debt	(70,496)	(71,252)
Proceeds from Technology Investment Agreement (TIA)	1,172,310	3,786,988
Proceeds from the exercise of stock options		10,500
Payment of preferred stock repurchase payable	(1,101,110)	(1,101,110)
Payment of preferred stock dividends	(58,111)	(78,545)
Repurchase of common stock		(2,547,724)
Net cash used by financing activities	(57,407)	(1,143)
Net increase (decrease) in cash and cash equivalents	(13,359,128)	13,947,433
Cash and cash equivalents at:
Beginning of period	19,721,345	29,162,913
End of period	6,362,217	43,110,346
Supplemental schedule of cash flow information:
Interest paid	34,398	26,009
Supplemental schedule of noncash investing and financing activities:
Preferred dividends declared, not paid	1,417,937	1,417,937
Amounts receivable under Technology Investment Agreement (TIA)	1,390,919	5,542,048
Redemption price payable	$ 6,000
Preferred stock repurchase payable		$ 1,058,935