Consolidated Balance Sheets (Parenthetical) - shares	Sep. 30, 2021	Dec. 31, 2020
Preferred stock, authorized (in shares)	10,000,000	10,000,000
Preferred stock, issued (in shares)	0	0
Preferred stock, outstanding (in shares)	0	0
Common stock, authorized (in shares)	60,000,000	60,000,000
Common stock, issued (in shares)	14,841,626	15,385,878
Common stock, outstanding (in shares)	14,841,626	15,385,878
Restricted stock awards
Unvested restricted stock (in shares)	55,284	30,300