Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue
Total revenue	$ 56,493	$ 51,951	$ 145,339	$ 107,677
Operating expenses
Payroll, benefits and related	22,243	25,200	43,705	52,731
Purchased transportation	11,533	7,384	20,721	15,477
Fuel	6,485	4,784	11,853	11,925
Equipment rent	2,984	2,420	5,539	5,658
Maintenance and supplies	2,465	2,657	4,715	5,490
General and administrative	5,742	4,284	10,786	9,228
Operating supplies and expenses	3,472	4,160	7,560	8,017
Depreciation and amortization	3,738	3,645	7,362	7,115
Insurance and claims	2,377	2,979	4,963	5,539
Loss on sale of fixed assets	37		37
Change in fair value of contingent consideration		296		296
Total operating expenses	61,092	57,914	117,435	121,767
Operating income (loss)	(4,599)	(5,963)	27,904	(14,090)
Other income (expense)
Interest expense	(2,799)	(3,440)	(6,902)	(7,064)
Change in fair value of embedded derivative liability	(692)	(109)	96	(154)
Change in fair value of warrant liabilities	(1,345)	(975)	1,762	7,260
Gain (loss) on extinguishment of debt	256	30	790	(10,056)
Other miscellaneous income	4		4
Total other expense	(4,576)	(4,494)	(4,250)	(10,014)
Income (loss) before income taxes	(9,175)	(10,457)	23,654	(24,104)
(Provision) benefit for income taxes	(21)	(51)	(1,585)	(106)
Net income (loss)	$ (9,154)	$ (10,508)	$ 22,069	$ (24,210)
Earnings per share:
Basic	$ (0.30)	$ (0.55)	$ 0.72	$ (1.26)
Diluted	$ (0.30)	$ (0.55)	$ 0.67	$ (1.26)
Weighted average shares outstanding:
Basic	30,883,149	19,542,498	30,116,853	19,722,498
Diluted	30,883,149	19,542,498	33,322,039	19,722,498
Trucking [Member]
Revenue
Total revenue	$ 56,439	$ 51,719	$ 110,391	$ 107,125
Other [Member]
Revenue
Total revenue			34,758
CNG [Member]
Revenue
Total revenue	54	232	190	552
Operating expenses
CNG expenses	$ 16	$ 105	$ 194	$ 291