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Stockholders' Equity - Summary of RSU Activity (Details) - USD ($)		6 Months Ended
	Jan. 09, 2014	Jun. 30, 2022
2013 Equity Incentive Plan
Restricted Stock Units information
Period for unrecognized compensation expense related to unvested options yet has not been recognized		2 years 1 month 6 days
2013 Equity Incentive Plan | Upon first anniversary of start date
Restricted Stock Units information
Vesting percentage	25.00%
RSU
Restricted Stock Units information
Vesting period		4 years
RSU | 2013 Equity Incentive Plan
NUMBER OF SHARES
Unvested at beginning of period		345,600
Forfeited		(19,572)
Vested		(110,050)
Unvested at end of period		215,978
WEIGHTED-AVERAGE GRANT DATE FAIR VALUE
Unvested at beginning of period		$ 3.70
Forfeited		3.81
Vested		3.45
Unvested at end of period		$ 3.81
RSU | 2013 Equity Incentive Plan | Non-executive employees
Restricted Stock Units information
Unrecognized compensation expense related to unvested service RSUs		$ 701,466
Period for unrecognized compensation expense related to unvested options yet has not been recognized		2 years 7 months 6 days

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