Note 9 - Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Lessee, Operating Lease, Disclosure [Table Text Block]

	December 31,
	2020			2019
Weighted-average remaining lease term		5.43			6.22
Weighted-average discount rate		6.1	%		6.1	%

Lease, Cost [Table Text Block]

	For the Twelve Months Ended December 31,
	2020		2019
	(Dollars in thousands)
Operating lease cost	$	1,796	$	1,606

Schedule of Supplemental Cash Flow Information Related To Leases [Table Text Block]

	For the Twelve Months Ended December 31,
	2020		2019
Operating cash flow information:	(Dollars in thousands)
Cash paid for amounts included in the measurement of lease liabilities	$	1,707	$	1,425
Right-of-use assets obtained in exchange for lease obligations	$	18	$	724

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

Operating Lease Obligations		December 31, 2020
	(Dollars in thousands)
2021	$	1,760
2022		1,768
2023		1,802
2024		1,511
2025 and beyond		2,786
Total lease payments	$	9,627
Less: Imputed interest		(1,231	)
Present value of lease liabilities	$	8,396

Contractual Obligation, Fiscal Year Maturity [Table Text Block]

Manufacturing and Servicing Obligations	December 31, 2020
		(Dollars in thousands)
2021	$	4,862
2022		3,106
2023		3,213
2024		4,783
2025 and beyond		712
Total Manufacturing and Servicing Obligations	$	16,676