Note 2 - Revision of Previously Issued Consolidated Financial Statements - Revisions to Financial Statements (Details) - USD ($)		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021		Dec. 31, 2020		Dec. 31, 2019
Prepaid expenses and other current assets		$ 6,879,000	$ 4,656,000
Total current assets		138,452,000	126,088,000
Total assets		450,229,000	554,286,000
Accrued expenses and other current liabilities(1)		9,782,000	6,870,000	[1]
Sales taxes payable		4,151,000	2,591,000
Total current liabilities		44,582,000	42,700,000
Total liabilities		86,041,000	76,239,000
Retained Earnings (Accumulated Deficit), Total		(246,915,000)	(107,110,000)	[2]			$ 100,200,000
Total shareholders’ equity		364,188,000	478,047,000		$ 204,429,000		43,321,000
Total liabilities and shareholders’ equity		450,229,000	554,286,000
General and administrative		47,670,000	33,668,000		15,273,000
Total operating expenses		307,300,000	154,316,000		54,328,000
Operating loss		(145,541,000)	(35,160,000)		(6,241,000)
Interest (expense) income, net		(687,000)	(485,000)		40,000
Total other income, net		714,000	6,134,000		4,960,000
Loss before income tax benefit		(144,827,000)	(29,026,000)		(1,281,000)
Net (loss) income		$ (139,805,000)	$ (8,908,000)	[3]	$ 1,983,000	[3]
Net income (loss) per basic share (in dollars per share)		$ (3.29)	$ (0.23)		$ 0.07
Net loss per diluted share (in dollars per share)		$ (3.29)	$ (0.23)		$ (0.06)
Net income attributable to common shareholders - Basic		$ (139,805,000)	$ (8,908,000)		$ 1,822,000
Net loss attributable to common shareholders - Diluted		(139,805,000)	(8,908,000)		(1,632,000)
Net (loss) income		(139,805,000)	(8,908,000)	[3]	1,983,000	[3]
Prepaid expenses and other current assets		26,000	2,663,000		(50,000)
Sales taxes payable		$ 1,526,000	1,412,000		759,000
Previously Reported [Member]
Prepaid expenses and other current assets			4,427,000
Total current assets			125,859,000
Total assets			554,057,000
Accrued expenses and other current liabilities(1)	[1]		7,142,000
Sales taxes payable			0
Total current liabilities			40,381,000
Total liabilities			73,920,000
Retained Earnings (Accumulated Deficit), Total			(105,020,000)	[2]			100,100,000
Total shareholders’ equity			480,137,000
Total liabilities and shareholders’ equity			554,057,000
General and administrative			32,448,000		14,607,000
Total operating expenses			153,096,000		53,662,000
Operating loss			(33,940,000)		(5,575,000)
Interest (expense) income, net			(432,000)		58,000
Total other income, net			6,187,000		4,978,000
Loss before income tax benefit			(27,753,000)		(597,000)
Net (loss) income	[3]		$ (7,635,000)		$ 2,667,000
Net income (loss) per basic share (in dollars per share)			$ (0.20)		$ 0.09
Net loss per diluted share (in dollars per share)			$ (0.20)		$ (0.03)
Net income attributable to common shareholders - Basic					$ 2,450,000
Net loss attributable to common shareholders - Diluted					(954,000)
Net (loss) income	[3]		$ (7,635,000)		2,667,000
Prepaid expenses and other current assets			2,802,000		25,000
Sales taxes payable			0		0
Revision of Prior Period, Adjustment [Member]
Prepaid expenses and other current assets			229,000
Total current assets			229,000
Total assets			229,000
Accrued expenses and other current liabilities(1)	[1]		(272,000)
Sales taxes payable			2,591,000
Total current liabilities			2,319,000
Total liabilities			2,319,000
Retained Earnings (Accumulated Deficit), Total			(2,090,000)	[2]			$ (133,000)
Total shareholders’ equity			(2,090,000)
Total liabilities and shareholders’ equity			229,000
General and administrative			1,220,000		666,000
Total operating expenses			1,220,000		666,000
Operating loss			(1,220,000)		(666,000)
Interest (expense) income, net			(53,000)		(18,000)
Total other income, net			(53,000)		(18,000)
Loss before income tax benefit			(1,273,000)		(684,000)
Net (loss) income	[3]		$ (1,273,000)		$ (684,000)
Net income (loss) per basic share (in dollars per share)			$ (0.03)		$ (0.02)
Net loss per diluted share (in dollars per share)			$ (0.03)		$ (0.03)
Net income attributable to common shareholders - Basic					$ (628,000)
Net loss attributable to common shareholders - Diluted					(678,000)
Net (loss) income	[3]		$ (1,273,000)		(684,000)
Prepaid expenses and other current assets			(139,000)		(75,000)
Sales taxes payable			$ 1,412,000		$ 759,000

[1] In the prior year Consolidated Balance Sheet as of the year ended December 31, 2021, accrued sales taxes in the amount of $272,000 were recorded within the Accrued expenses and other current liabilities line item on the consolidated balance sheets. These were reclassified to Sales tax payable in the current year.

[2] The impact of the error on Accumulated deficit in our Consolidated Balance Sheet as of the year ended December 31, 2019 was negative $133,000, adjusting the ending balance to be $100.2 million when previously reported as $100.1 million.

[3] The Consolidated Statements of Comprehensive (Loss) Income for the years ended December 31, 2021 and 2020 were adjusted by the impact to net (loss) income noted here. Comprehensive loss for the year ended December 31, 2021 is now reported at $9.2 million, reflecting an adjustment of $1.3 million, and was previously reported as $7.9 million. Comprehensive income for the year ended December 31, 2020 is now reported at $1.9 million, reflecting an adjustment of negative $684,000, and was previously reported as $2.7 million.