Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 4,528	$ 4,068
Trade and other receivables, net of allowance of $246 and $121	70,933	47,645
Contract assets	139,481	120,516
Inventories	87,732	91,229
Prepaid expenses and other	5,274	9,026
Total current assets	307,948	272,484
Property and equipment, less accumulated depreciation and amortization of $132,964 and $126,359	147,351	143,955
Operating lease right-of-use assets	85,491	88,155
Goodwill	55,504	55,504
Intangible assets, net	29,058	31,074
Other assets	6,393	6,709
Total assets	631,745	597,881
Current liabilities:
Current debt	10,756	10,756
Accounts payable	24,508	31,142
Accrued liabilities	23,234	27,913
Contract liabilities	37,105	21,450
Current portion of operating lease liabilities	5,108	4,933
Total current liabilities	100,711	96,194
Borrowings on line of credit	75,923	54,485
Operating lease liabilities	82,919	85,283
Deferred income taxes	11,159	10,942
Other long-term liabilities	9,850	10,617
Total liabilities	280,562	257,521
Commitments and contingencies (Note 7)
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, 9,918,711 and 9,985,580 shares issued and outstanding as of June 30, 2024 and December 31, 2023, respectively	99	100
Additional paid-in-capital	126,020	129,095
Retained earnings	225,982	212,125
Accumulated other comprehensive loss	(918)	(960)
Total stockholders’ equity	351,183	340,360
Total liabilities and stockholders’ equity	$ 631,745	$ 597,881

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).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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).