Significant Accounting Policies - Schedule of Earnings (Loss) per share (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Weighted average shares outstanding used to compute basic earnings per share (in shares)	22,633	21,725	15,190
Incremental shares issuable upon the assumed exercise of stock options (in shares)	14	54	0
Unvested restricted stock and restricted stock units (in shares)	213	318	0
Shares used to compute diluted earnings (loss) per share (in shares)	22,860	22,097	15,190
Anti-dilutive shares excluded from the diluted earnings per share calculation (in shares)	63	16	611