Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 1,575	$ 1,026
Common stock, shares issued (in shares)	23,735,013	21,057,040
Common stock, shares outstanding (in shares)	23,326,943	20,648,970
Treasury stock, shares held (in shares)	408,070	408,070