Consolidated Balance Sheets Parentheticals - USD ($) shares in Thousands, $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Consolidated Balance Sheets [Abstract]
Accumulated depreciation and amortization, property and equipment	$ 4,096	$ 3,984
Preferred stock, par value per share	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000	5,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value per share	$ 0.001	$ 0.001
Common stock, shares authorized	300,000	300,000
Common stock, shares issued	190,430	189,214
Treasury stock, shares	868	488