Note 4 - Investments (Tables)

6 Months Ended

Jun. 30, 2023

Notes Tables

Debt Securities, Held-to-Maturity [Table Text Block]

	June 30,			December 31,
	2023			2022
	(unaudited)			(audited)
	(in thousands)
Amortized cost	$	3,059		$	2,983
Unrealized gains		-			9
Unrealized losses		(8	)		-
Fair value	$	3,051		$	2,992

Investments Classified by Contractual Maturity Date [Table Text Block]

	June 30, 2023 (unaudited)				December 31, 2022 (audited)
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
	(in thousands)
One year or less	$	2,785	$	2,778	$	2,432	$	2,440
Greater than one year through five years		274		273		551		552
	$	3,059	$	3,051	$	2,983	$	2,992