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Note 1 - Significant Accounting Policies 1 (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Retained Earnings (Accumulated Deficit), Total	$ (66,385,000)	$ (66,312,000)
Accounts Receivable, Allowance for Credit Loss, Ending Balance	7,000	7,000	$ 7,000
Contract with Customer, Liability, Total		2,457,000	$ 4,061,000
Share-Based Payment Arrangement, Noncash Expense, Total	530,000	469,000
Cash, Uninsured Amount	20,100,000	7,700,000
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill)	0	0
Goodwill and Intangible Asset Impairment, Total	0	0
Goodwill	780,000	780,000
Factoring Agreement, Gross Amount Factored	$ 87,800,000	$ 37,300,000
Customer Concentration Risk [Member] | Accounts Receivable [Member] | US-based IT OEM Company [Member]
Concentration Risk, Percentage	93.00%	51.00%
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Us-based Data Center [Member]
Concentration Risk, Percentage		29.00%
Selling, General and Administrative Expenses [Member]
Share-Based Payment Arrangement, Noncash Expense, Total	$ 500,000	$ 500,000
Interest Expense [Member]
Factoring Agreement, Finance Fees Paid	$ 810,000	$ 177,000

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