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Note 4 - Long-term Borrowings (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Long-term Debt Instruments [Table Text Block]

		December 31,
		2021				2020
Notes Payable due July, 2022		$	1,595			$	1,995
Accrued in-kind interest – long term			450				370
Less unamortized discount and debt issuance costs			(22	)			(131	)
			2,023				2,234
Current portion of long-term borrowing			2,023				-
Non-current portion of long-term borrowing		$	-			$	2,234

Contractual Obligation, Fiscal Year Maturity [Table Text Block]

2022		$	1,595
Total		$	1,595

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