Note 13 - Equity - Changes in Stockholders' Equity (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Balances	$ 167,558,549	$ 124,074,056	$ 196,858,907	$ 170,160,042
Net income/(loss)	1,343,945	(393,066)	13,453,901	(4,186,799)
Payment of common stock tendered for employee stock-based compensation tax obligations	0		638,139	214,794
Issuance of common stock upon vesting of RSUs	0		0	0
Cash dividend ($0.60 per share)	8,466		(43,108,606)	(32,135,118)
Stock-based compensation	813,774	459,823	2,876,071	1,589,993
Issuance of common stock			0
Payment of common stock tendered for employee stock-based compensation tax obligations	0		(638,139)	(214,794)
Balances	$ 169,442,134	124,140,813	$ 169,442,134	124,140,813
Issuance of common stock upon exercise of stock options		$ 0		$ 0
Repurchase of common stock (including excise tax) (in shares)	0	0	0	(1,700,000)
Repurchase of common stock (including excise tax)				$ (11,072,511)
Common Stock [Member]
Balances (in shares)	71,305,893	71,082,944	71,091,616	72,675,190
Balances	$ 7,131	$ 7,109	$ 7,109	$ 7,268
Net income/(loss)	$ 0	0	$ 0	0
Payment of common stock tendered for employee stock-based compensation tax obligations (in shares)	(37,427)		82,136
Payment of common stock tendered for employee stock-based compensation tax obligations	$ (4)		$ 8	$ (0)
Issuance of common stock upon vesting of RSUs (in shares)	100,808		309,854	144,576
Issuance of common stock upon vesting of RSUs	$ 10		$ 31	$ 15
Cash dividend ($0.60 per share)	0		0	0
Stock-based compensation	$ 0	$ 0	$ 0	0
Issuance of common stock (in shares)			49,940
Issuance of common stock			$ 5
Payment of common stock tendered for employee stock-based compensation tax obligations (in shares)	37,427		(82,136)
Payment of common stock tendered for employee stock-based compensation tax obligations	$ 4		$ (8)	$ 0
Balances (in shares)	71,369,274	71,091,616	71,369,274	71,091,616
Balances	$ 7,137	$ 7,109	$ 7,137	$ 7,109
Issuance of common stock upon exercise of stock options (in shares)		8,672		8,672
Issuance of common stock upon exercise of stock options		$ 0		$ 0
Repurchase of common stock (including excise tax) (in shares)				(1,736,822)
Repurchase of common stock (including excise tax)				$ (174)
Additional Paid-in Capital [Member]
Balances	237,502,156	234,873,128	235,795,420	233,957,767
Net income/(loss)	0	0	0	0
Payment of common stock tendered for employee stock-based compensation tax obligations	(282,596)		638,131	214,794
Issuance of common stock upon vesting of RSUs	(10)		(31)	(15)
Cash dividend ($0.60 per share)	0		0	0
Stock-based compensation	813,774	459,823	2,876,071	1,589,993
Issuance of common stock			5
Payment of common stock tendered for employee stock-based compensation tax obligations	282,596		(638,131)	(214,794)
Balances	238,033,324	235,332,951	238,033,324	235,332,951
Issuance of common stock upon exercise of stock options		0		0
Repurchase of common stock (including excise tax)				0
Retained Earnings [Member]
Balances	(69,950,738)	(110,806,181)	(38,943,622)	(63,804,993)
Net income/(loss)	1,343,945	(393,066)	13,453,901	(4,186,799)
Payment of common stock tendered for employee stock-based compensation tax obligations	0		(0)	(0)
Issuance of common stock upon vesting of RSUs	0		0	0
Cash dividend ($0.60 per share)	8,466		(43,108,606)	(32,135,118)
Stock-based compensation	0	0	0	0
Issuance of common stock			0
Payment of common stock tendered for employee stock-based compensation tax obligations	0		0	0
Balances	(68,598,327)	(111,199,247)	(68,598,327)	(111,199,247)
Issuance of common stock upon exercise of stock options		0		0
Repurchase of common stock (including excise tax)				(11,072,337)
AOCI Attributable to Parent [Member]
Balances	0	0	0	0
Net income/(loss)	0	0	0	0
Payment of common stock tendered for employee stock-based compensation tax obligations	(282,600)		(0)	(0)
Issuance of common stock upon vesting of RSUs	0		0	0
Cash dividend ($0.60 per share)	0		0	0
Stock-based compensation	0	0	0	0
Issuance of common stock			0
Payment of common stock tendered for employee stock-based compensation tax obligations	282,600		0	0
Balances	$ 0	0	$ 0	0
Issuance of common stock upon exercise of stock options		$ 0		0
Repurchase of common stock (including excise tax)				$ 0