Note 7 - Note Payable (Tables)

12 Months Ended

Dec. 31, 2020

The 2017 Loan Agreement [Member]

Notes Tables

Schedule of Debt [Table Text Block]

Year Ending December 31,
2021	$	-
2022		-
2023		5,992
Total payments		5,992
Less: Amount representing interest		(1,465	)
Present value of obligations		4,527
Less: Unamortized debt discount		(9	)
Note payable, noncurrent portion	$	4,518