Note 7 - Leases (Tables)

12 Months Ended

Dec. 31, 2019

Leases [Abstract]

Schedule of maturities of operating lease liabilities

(In thousands)
Year Ending December 31,
2020	$	117
2021		98
2022		41
Total lease payments		256
Less imputed interest		(43)
Total	$	213

Schedule future minimum lease and royalty payments

(In thousands)
Year Ending December 31,
2020	$	5,146
2021		5,709
2022		5,709
2023		5,720
2024		4,426
Thereafter		11,777
Total minimum payments	$	38,487