Note 5 - Leases (Tables)

3 Months Ended

Mar. 31, 2022

Notes Tables

Lessee, Operating Lease Right-of-use Assets and Liabilities [Table Text Block]

	March 31,		December 31,
	2022		2021
Office leases	$	450	$	590
Total operating lease right-of-use assets, net	$	450	$	590

	March 31,		December 31,
	2022		2021
Office leases	$	440	$	596
Total current lease liabilities	$	440	$	596
Non-current office leases		—		—
Total lease liabilities	$	440	$	596

Lease, Cost [Table Text Block]

	Three Months Ended March 31,
	2022		2021
Office leases	$	157	$	150
Land leases		—		—
Total operating lease expense		157		150
Short-term lease expense		62		54
Total lease expense	$	219	$	204

	Three Months Ended March 31,
	2022		2021
Cash paid for amounts included in the measurement of operating lease liabilities:
Cash flows from operating activities	$	173	$	170

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

2022 (remaining)	$	460
2023		—
2024		—
2025		—
2026		—
Thereafter		—
Total undiscounted lease payments		460
Discount to present value		(20	)
Present value of lease liabilities	$	440
Weighted average remaining lease term - years		0.7
Weighted average discount rate - percent		12.0