Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Revenue
Revenue	$ 304,047	$ 229,275
Operating expenses
Payroll, benefits and related	98,294	105,480
Purchased transportation	68,765	38,889
Fuel	28,155	22,881
General and administrative	25,465	18,501
Operating supplies and expenses	15,252	16,110
Depreciation and amortization	15,234	14,760
Equipment rent	13,401	10,746
Maintenance and supplies	10,850	10,227
Insurance and claims	8,938	9,767
Impairment of long-lived assets	0	2,302
Loss on sale of fixed assets	154	1,269
Change in fair value of contingent consideration	0	296
Total operating expenses	284,761	251,726
Operating income (loss)	19,286	(22,451)
Other income (expense)
Interest expense	(12,745)	(14,982)
Change in fair value of embedded derivative liability	765	(1,257)
Change in fair value of warrant liabilities	(2,520)	1,975
Gain (loss) on extinguishment of debt	10,953	(9,994)
Other miscellaneous income	57	67
Total other expense	(3,490)	(24,191)
Income (loss) before income taxes	15,796	(46,642)
(Provision) benefit for income taxes	(1,543)	(206)
Net income (loss)	$ 14,253	$ (46,848)
Earnings per share:
Basic	$ 0.45	$ (2.26)
Diluted	$ 0.44	$ (2.26)
Weighted average shares outstanding:
Basic	30,507,308	21,176,453
Diluted	33,376,075	21,176,453
Trucking [Member]
Revenue
Revenue	$ 268,913	$ 228,276
Other [Member]
Revenue
Revenue	34,758
CNG [Member]
Revenue
Revenue	376	999
Operating expenses
CNG expenses	$ 253	$ 498