Consolidated Balance Sheets (Parenthetical) - $ / shares	May 31, 2022	May 31, 2021
Consolidated Balance Sheets
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, authorized (in thousands)	10,000	10,000
Preferred stock, shares issued (in thousands)	0	0
Preferred stock, shares outstanding (in thousands)	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized (in thousands)	75,000	75,000
Common stock, shares issued (in thousands)	27,120	23,725
Common stock, shares outstanding (in thousands)	27,120	23,725