Stockholders' Equity - Summary of Shares Purchased under ESPP'S Six Month Purchase Periods (Details) - $ / shares	6 Months Ended
	Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Class Of Stock [Line Items]
Number of Shares	20,326	13,637	3,253	3,033
Price per Share	$ 3.56	$ 3.92
2014 Employee Stock Purchase Plan Group A
Class Of Stock [Line Items]
Number of Shares			2,857	3,033
Price per Share			$ 4.87	$ 8.29
2014 Employee Stock Purchase Plan Group B
Class Of Stock [Line Items]
Number of Shares			396
Price per Share			$ 4.87