Stock-Based Compensation - Restricted Stock Units (Details) - Restricted Stock Units (RSU) - $ / shares	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Restricted Stock Units
Balance at Beginning of Period (in shares)	7,721	3,582
Granted (in shares)	3,942	4,139
Balance at End of Period (in shares)	11,663	7,721
Weighted Average Grant Date Fair Value
Outstanding at Beginning of period (in dollars per share)	$ 30.27	$ 30.70
Granted (in dollars per share)	34.25	29.89
Outstanding at End of period (in dollars per share)	$ 31.62	$ 30.27