Note 6 - Net Income (Loss) Per Share (Tables)

3 Months Ended

Mar. 31, 2023

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three Months Ended March 31,
	2023		2022
Shares used in basic earnings per share calculation		40,321		40,338
Effect of dilutive securities:
Stock options		-		-
Restricted stock/Deferred stock units		-		-
Total effects of dilutive securities		-		-
Shares used in dilutive earnings per share calculation		40,321		40,338

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	Three Months Ended March 31,
	2023		2022
Anti-dilutive securities
Stock options		2,231		3,030