Convertible Notes - B3D Senior Secured Loan (Details) - USD ($) $ / shares in Units, $ in Thousands									1 Months Ended	3 Months Ended
	Mar. 27, 2020	Mar. 19, 2020	Mar. 09, 2020	Mar. 06, 2020	Mar. 05, 2020	Jan. 14, 2020	Jan. 09, 2020	Mar. 19, 2019	Jan. 31, 2020	Mar. 31, 2020	Jan. 08, 2020	Dec. 31, 2019	Jul. 08, 2019
Debt instrument, face amount				$ 7,900			$ 7,150			$ 9,975	$ 7,000
Increase in principal and interest accrued of debt in new funding				$ 250
Amount of principal to be converted into common stock		$ 0.525		$ 1.68
Conversion price				$ 1.68
Loss on extinguishment of debt										265
Derivative liability										6,428		$ 3,137
Shares issued on conversion of debt								2,913,197
Additional amount borrowed										4,880		5,762
Credit agreement with B3D, LLC
Debt instrument, face amount					$ 7,150		7,150				$ 7,000		$ 7,000
Increase in principal and interest accrued of debt				$ 750			$ 150
Increase in principal and interest accrued of debt in new funding				$ 500
Principal amount of debt converted		$ 750
Conversion price		$ 0.525	$ 1.68	$ 6.00	$ 6.00
Amount of principal to be converted into common stock	$ 375
Issuance of common shares to pay interest on borrowings							97,223
Loss on extinguishment of debt										265
Write off of deferred debt issuance cost										476
Shares issued on conversion of debt		446,429
B3D Note [Member]
Principal amount of debt converted										5,665
Issuance of common shares to pay interest on borrowings						97,223
Extinguishment of derivative liability				$ 2,048
Shares issued on conversion of debt									1,430,647
Deferred finance costs										189
Additional amount borrowed										3,562		$ 4,580
B3D Note [Member] | Credit agreement with B3D, LLC
Derivative liability				$ 3,656
Sixth Credit Agreement Amendment
Write off of deferred debt issuance cost										$ 250