Note 7 - Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Lease, Cost [Table Text Block]

	As of December 31,
	2021			2020
Weighted-average remaining lease term		4.51			5.43
Weighted-average discount rate		6.2	%		6.1	%

	For the Twelve Months Ended December 31,
	2021		2020
Operating lease cost	$	1,779	$	1,796

	For the Twelve Months Ended December 31,
	2021		2020
Cash paid for amounts included in the measurement of lease liabilities	$	1,753	$	1,707
Right-of-use assets obtained in exchange for lease obligations	$	-	$	18

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

Operating Lease Obligations	As of December 31, 2021
2022	$	1,764
2023		1,802
2024		1,511
2025		1,210
2026 and beyond		1,576
Total lease payments	$	7,863
Less: Imputed interest		(769	)
Present value of lease liabilities	$	7,094

Contractual Obligation, Fiscal Year Maturity [Table Text Block]

Manufacturing and Servicing Obligations	December 31, 2021
2022	$	7,366
2023		3,288
2024		4,783
2025 and beyond		712
Total Manufacturing and Servicing Obligations	$	16,149