Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 3,706	$ 2,997
Trade and other receivables, less allowance for doubtful accounts of $498 and $503	73,975	52,664
Contract assets	117,260	107,170
Inventories	71,578	59,651
Prepaid expenses and other	4,326	5,744
Total current assets	270,845	228,226
Property and equipment, less accumulated depreciation and amortization of $115,377 and $106,957	124,228	121,266
Operating lease right-of-use assets	94,166	98,507
Goodwill	55,504	53,684
Intangible assets, net	36,334	39,376
Other assets	5,400	6,620
Total assets	586,477	547,679
Current liabilities:
Current debt	3,525	0
Accounts payable	40,444	32,267
Accrued liabilities	32,561	24,498
Contract liabilities	16,243	2,623
Current portion of operating lease liabilities	4,725	4,704
Total current liabilities	97,498	64,092
Borrowings on line of credit	71,817	86,761
Operating lease liabilities	90,231	93,725
Deferred income taxes	10,982	10,984
Other long-term liabilities	7,272	8,734
Total liabilities	277,800	264,296
Commitments and contingencies (Note 10)
Stockholders’ equity:
Preferred stock, $.01 par value, 10,000,000 shares authorized, none issued or outstanding	0	0
Common stock, $.01 par value, 15,000,000 shares authorized, 9,927,360 and 9,870,567 shares issued and outstanding as of September 30, 2022 and December 31, 2021, respectively	99	99
Additional paid-in-capital	126,686	125,062
Retained earnings	183,092	159,904
Accumulated other comprehensive loss	(1,200)	(1,682)
Total stockholders’ equity	308,677	283,383
Total liabilities and stockholders’ equity	$ 586,477	$ 547,679

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).