Subsequent Events - Financing (Details) - Subsequent Event - Credit Agreement $ / shares in Units, $ in Thousands	Apr. 24, 2020 USD ($)	Mar. 25, 2020 USD ($) item $ / shares shares	Apr. 15, 2020 $ / shares shares	Mar. 31, 2020 $ / shares
Subsequent Event [Line Items]
Agreement amount		$ 3,500
Amount received	$ 1,000	2,500
Additional borrowing amount		$ 1,000
Closing period		30 days
Threshold period to draw additional amount		5 months
Maximum amount per draw		$ 500
Debt instrument, term		6 months
Debt Instrument, Basis Spread on Variable Rate		2.50%
Warrants Purchased | shares			5,085,834
Warrant exercise price (in dollars per share) | $ / shares			$ 0.12
Interest rate (as a percent)	1.00%
Series G Warrants
Subsequent Event [Line Items]
Warrants Purchased | shares		1,200,000
Warrant exercise price (in dollars per share) | $ / shares		$ 3.70		$ 3.70
Warrants issued | shares		1,200,000
Exercise price per share of common stock | item		2
Warrants trading days		10 days