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Note 14 - Equity (Tables)

9 Months Ended

Sep. 30, 2021

Notes Tables

Schedule of Stockholders Equity [Table Text Block]

		*Common Stock*								*Additional Paid-in*				*Accumulated*				*Other Comprehensive*				*Total Stockholders'*
		*Shares*				*Amount*				*Capital*				*Deficit*				*Income*				*Equity*
Balances at June 30, 2021			75,389,417			$	7,539			$	225,678,876			$	(108,965,453	)		$	—			$	116,720,962
Net loss							—				—				(3,113,358	)			—				(3,113,358	)
Repurchase of common stock			(1,110,763	)			(111	)			—				(7,134,577	)			—				(7,134,688	)
Payment of common stock tendered for employee stock-based compensation tax obligations			(25,203	)			(2	)			(160,554	)			—				—				(160,556	)
Issuance of common stock upon vesting of RSUs			53,334				5				(5	)			—				—				—
Stock-based compensation			—				—				243,502				—				—				243,502
Balances at September 30, 2021			74,306,785			$	7,431			$	225,761,819			$	(119,213,388	)		$	—			$	106,555,862

		*Common Stock*								*Additional Paid-in*				*Accumulated*				*Other Comprehensive*				*Total Stockholders'*
		*Shares*				*Amount*				*Capital*				*Deficit*				*Income*				*Equity*
Balances at December 31, 2020			77,195,704			$	7,720			$	224,978,430			$	(95,192,881	)		$	—			$	129,793,269
Net loss			—				—				—				(3,756,262	)			—				(3,756,262	)
Repurchase of common stock			(3,024,690	)			(302	)			—				(20,264,245	)			—				(20,264,547	)
Payment of common stock tendered for employee stock-based compensation tax obligations			(27,105	)			(3	)			(173,915	)			—				—				(173,918	)
Issuance of common stock upon vesting of RSUs			162,876				16				(16	)			—				—				—
Stock-based compensation			—				—				957,320				—				—				957,320
Balances at September 30, 2021			74,306,785			$	7,431			$	225,761,819			$	(119,213,388	)		$	—			$	106,555,862

		*Common Stock*								*Additional Paid-in*				*Accumulated*				*Other Comprehensive*				*Total Stockholders'*
		*Shares*				*Amount*				*Capital*				*Deficit*				*Income*				*Equity*
Balances at June 30, 2020			78,618,743			$	7,862			$	221,380,828			$	(127,255,672	)		$	—			$	94,133,018
Net income			—				—				—				24,187,957				—				24,187,957
Repurchase of common stock			(886,472	)			(89	)			—				(5,567,032	)			—				(5,567,121	)
Payment of common stock tendered for employee stock-based compensation tax obligations			(27,143	)			(3	)			(174,260	)			—				—				(174,263	)
Issuance of common stock upon exercise of stock options			11,822				1				(1	)			—				—				—
Issuance of common stock upon vesting of RSUs			53,334				6				(6	)			—				—				—
Stock-based compensation			—				—				380,823				—				—				380,823
Balances at September 30, 2020			77,770,284			$	7,777			$	221,587,384			$	(108,634,747	)		$	—			$	112,960,414

		*Common Stock*								*Additional Paid-in*				*Accumulated*				*Other Comprehensive*				*Total Stockholders'*
		*Shares*				*Amount*				*Capital*				*Deficit*				*Income*				*Equity*
Balances at December 31, 2019			81,269,868			$	8,127			$	220,808,037			$	(123,032,408	)		$	—			$	97,783,756
Net income			—				—				—				36,180,584				—				36,180,584
Repurchase of common stock			(3,660,247	)			(366	)			—				(21,782,923	)			—				(21,783,289	)
Payment of common stock tendered for employee stock-based compensation tax obligations			(29,035	)			(3	)			(184,006	)			—				—				(184,009	)
Issuance of common stock upon exercise of stock options			11,822				1				(1	)			—				—				—
Issuance of common stock upon vesting of RSUs			177,876				18				(18	)			—				—				—
Stock-based compensation			—				—				963,372				—				—				963,372
Balances at September 30, 2020			77,770,284			$	7,777			$	221,587,384			$	(108,634,747	)		$	—			$	112,960,414