Consolidated Balance Sheets (Parentheticals) - $ / shares	Mar. 31, 2022	Dec. 31, 2021
Consolidated Balance Sheets
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, shares outstanding (in shares)	0	0
Preferred stock, shares Issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	260,000,000	260,000,000
Common stock, shares issued (in shares)	44,273,388	44,092,981
Common stock, shares outstanding (in shares)	44,273,388	44,092,981