Stock Plan and Stock-Based Compensation - Summary of Non-Vested Restricted Stock (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Remaining Contractual Term (Years)	8 years 9 months 29 days
Non-vested Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Beginning balance, Number of Shares	289,352
Vested during the year, Number of Shares	289,352
Ending balance, Number of Shares		289,352
Beginning balance, Weighted Average Grant Date Fair Value	$ 0.000396
Vested during the year, Weighted Average Grant Date Fair Value	$ 0.000396
Ending balance, Weighted Average Grant Date Fair Value		$ 0.000396
Remaining Contractual Term (Years)		4 months 24 days