CONDENSED STATEMENTS OF CASH FLOWS - USD ($)	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities
Net income	$ 28,618,009	$ 4,088,886
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	429,709	419,488
Net unrealized (gain) loss on investments	(1,189,724)	(870,760)
Accreted interest	58,160
Deferred taxes	(6,615,764)	(1,801,996)
Provision for doubtful accounts	146,395	125,000
Share-based compensation	1,345,915
Gain on forgiveness of PPP loan	(1,377,652)
(Increase) decrease in operating assets:
Accounts receivable	(5,209,061)	(2,021,098)
Inventories	(344,617)	(1,945,014)
Other current assets	10,731	10,917
Other assets	25,806	41,049
Increase (decrease) in operating liabilities:
Accounts payable	13,993,219	2,182,838
Accrued liabilities	1,465,375	(87,702)
Income taxes payable	156,263	69,989
Net cash provided by operating activities	31,512,764	211,597
Cash flows from investing activities
Purchase of property, plant, and equipment	(38,151,235)	(374,128)
Purchase of debt and equity securities	(4,631,475)	(2,118,410)
Net cash used by investing activities	(42,782,710)	(2,492,538)
Cash flows from financing activities
Repayments of long-term debt	(136,790)	(128,797)
Proceeds of long-term debt		1,363,000
Proceeds from TIA	17,676,051
Proceeds from the exercise of stock options	48,600	626,687
Payment of preferred stock redemption price payable	(101,250)
Payment of preferred stock repurchase payable	(1,101,110)	(100,000)
Payment of preferred stock dividends	(88,141)	(109,600)
Repurchase of common stock	(154,424)
Net cash provided (used) by financing activities	16,142,936	1,651,290
Net increase in cash and cash equivalents	4,872,990	(629,651)
Cash and cash equivalents at:
Beginning of period	17,566,682	5,934,749
End of period	22,439,672	5,305,098
Supplemental schedule of cash flow information:
Interest paid	61,620	103,687
Income taxes paid	16,122,340
Supplemental schedule of noncash investing and financing activities:
Preferred dividends declared, not paid	5,056,946	$ 54,800
Conversion of preferred stock to common stock	26,500
Amounts receivable under TIA	$ 10,324,812