CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in share)	50,000,000	50,000,000
Common stock, shares, issued (in shares)	19,588,003	19,384,350
Common stock, shares, outstanding (in shares)	18,205,636	17,990,707
Treasury stock, shares (in share)	1,382,367	1,393,643