Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenue
Total revenue	$ 51,951	$ 36,451	$ 107,677	$ 64,827
Operating expenses
Payroll, benefits and related	25,200	16,273	52,731	29,269
Purchased transportation	7,384	7,948	15,477	14,144
Fuel	4,784	4,939	11,925	8,692
Equipment rent	2,420	3,364	5,658	6,213
Maintenance and supplies	2,657	2,696	5,490	4,699
General and administrative	4,284	1,944	9,228	4,095
Operating supplies and expenses	4,160	1,782	8,017	3,527
Depreciation and amortization	3,645	1,522	7,115	2,758
Insurance and claims	2,979	1,469	5,539	2,611
Change in fair value of contingent consideration	296		296
Total operating expenses	57,914	42,109	121,767	76,816
Operating loss	(5,963)	(5,658)	(14,090)	(11,989)
Other income (expense)
Interest expense	(3,440)	(1,352)	(7,064)	(2,467)
Change in fair value of embedded derivative liability	(109)		(154)
Realized and unrealized gains on derivative liability, net				11
Change in fair value of warrant liabilities	(975)		7,260
Loss on extinguishment of debt	30		(10,056)
Total other expense	(4,494)	(1,352)	(10,014)	(2,456)
Loss before income taxes	(10,457)	(7,010)	(24,104)	(14,445)
(Provision) benefit for income taxes	(51)		(106)
Net loss	(10,508)	(7,010)	(24,210)	(14,445)
Accrued and undeclared preferred stock dividends in arrears	162	3	204	9
Issuance of warrants as deemed dividend - related party			455
Net loss available to common stockholders	$ (10,670)	$ (7,013)	$ (24,869)	$ (14,454)
Basic and diluted weighted average common shares outstanding	19,542,498	8,101,717	19,722,498	4,760,969
Basic and diluted net loss per common share	$ (0.55)	$ (0.87)	$ (1.26)	$ (3.04)
Trucking [Member]
Revenue
Total revenue	$ 51,719	$ 36,125	$ 107,125	$ 64,216
CNG [Member]
Revenue
Total revenue	232	326	552	611
Operating expenses
CNG expenses	$ 105	$ 172	$ 291	$ 808