CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and restricted cash (restricted cash of $405 and $405, respectively)	$ 20,593	$ 1,352
Receivables, net of allowance for doubtful accounts of $278 and $490, respectively	109,856	100,166
Inventories	1,300	1,387
Prepaid expenses and other current assets	9,864	10,103
Total current assets	141,613	113,008
Property and equipment:
Land and structures	34,274	34,266
Revenue equipment	318,339	316,492
Service, office and other equipment	31,507	31,213
Property and equipment, at cost	384,120	381,971
Accumulated depreciation and amortization	(168,380)	(175,024)
Property and equipment, net	215,740	206,947
Operating leases - right of use assets	21,342	22,898
Goodwill	5,231	5,231
Other intangibles, net	13,493	13,815
Other assets	3,253	2,136
Total assets	400,672	364,035
Current liabilities:
Accounts payable	43,098	36,378
Current portion of insurance and claims accruals	8,740	8,973
Accrued expenses	13,047	10,006
Current finance lease obligations	16,983	14,095
Current operating lease obligations	6,475	6,679
Long-term debt, current maturities	16,890	11,069
Total current liabilities	105,233	87,200
Other long-term liabilities	334	342
Long-term debt, less current maturities	57,188	63,355
Long-term operating lease obligations	15,287	16,644
Long-term finance lease obligations	70,033	56,274
Deferred income taxes	21,512	21,914
Insurance and claims accruals, less current portion	6,881	6,881
Total liabilities	276,468	252,610
Commitments and contingencies
Stockholders' equity:
Preferred Stock, $0.01 par value; 1,000,000 shares authorized; none issued	0	0
Common Stock, $0.01 par value; 30,000,000 shares authorized; issued 12,263,030 shares, and 12,037,966 shares, respectively	125	123
Additional paid-in capital	65,322	63,752
Retained earnings	116,394	103,283
Less treasury stock, at cost (3,367,418 shares, and 3,293,223 shares, respectively)	(57,637)	(55,733)
Total stockholders' equity	124,204	111,425
Total liabilities and stockholders' equity	$ 400,672	$ 364,035

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).