Loss Per Share - Reconciliation of Number of Common Shares Used in Calculation of Basic and Diluted Earnings Per Share (EPS) (Details) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share [Abstract]
Basic loss per share (in shares)	18,161,110	17,747,739	18,133,368	17,710,014
Effect of dilutive securities (in shares)	0	0	0	0
Diluted loss (in shares)	18,161,110	17,747,739	18,133,368	17,710,014
Basic loss (in dollars per share)	$ (0.06)	$ (0.50)	$ (0.24)	$ (1.34)
Effect of dilutive securities (in dollars per share)	0	0	0	0
Diluted loss (in dollars per share)	$ (0.06)	$ (0.50)	$ (0.24)	$ (1.34)