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Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v3.19.1
Subsequent Events (Details) - USD ($)
1 Months Ended
Dec. 02, 2019
Mar. 06, 2019
Dec. 02, 2018
Mar. 31, 2019
Feb. 25, 2019
Jan. 31, 2019
Convertible Notes Payable [Member] Ìý Ìý Ìý Ìý Ìý Ìý
Convertible debt Ìý Ìý Ìý Ìý Ìý $ 1,000,000
Repayment of principal amount on convertible debt Ìý Ìý $ 1,160,000 Ìý Ìý Ìý
Subsequent Event [Member] Ìý Ìý Ìý Ìý Ìý Ìý
Additional letter of credit provided to DOE Ìý Ìý Ìý $ 255,708 Ìý Ìý
Subsequent Event [Member] | Warrant [Member] Ìý Ìý Ìý Ìý Ìý Ìý
Common stock issuable from warrants Ìý 100,000 Ìý Ìý Ìý Ìý
Warrant exercise price Ìý $ 6.00 Ìý Ìý Ìý Ìý
Warrant term Ìý 5 years Ìý Ìý Ìý Ìý
Subsequent Event [Member] | Revolving Credit Facility [Member] Ìý Ìý Ìý Ìý Ìý Ìý
Line of credit, maximum borrowing capacity Ìý $ 5,000,000 Ìý Ìý Ìý Ìý
Interest rate Ìý 12.00% Ìý Ìý Ìý Ìý
Maturity date Ìý Sep. 06, 2020 Ìý Ìý Ìý Ìý
Upfront payment of facility fee Ìý $ 10,000,000 Ìý Ìý Ìý Ìý
Commitment fee percentage, payable quarterly Ìý 1.00% Ìý Ìý Ìý Ìý
Subsequent Event [Member] | Convertible Notes Payable [Member] Ìý Ìý Ìý Ìý Ìý Ìý
Line of credit, maximum borrowing capacity Ìý Ìý Ìý Ìý $ 10,000,000 Ìý
Maturity date Ìý Ìý Ìý Ìý Dec. 01, 2019 Ìý
Convertible debt Ìý Ìý Ìý Ìý $ 2,000,000 Ìý
Repayment of principal amount on convertible debt Ìý Ìý Ìý Ìý 1,000,000 Ìý
Repayment of accrued interest on convertible debt $ 80,000 Ìý Ìý Ìý $ 80,000 Ìý