CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
CONDENSED CONSOLIDATED STATEMENTS OF INCOME
NET SALES	$ 205,557	$ 164,715	$ 622,602	$ 515,785
COSTS OF OPERATIONS	182,377	146,883	565,708	461,532
GROSS PROFIT	23,180	17,832	56,894	54,253
OPERATING EXPENSES:
Selling, general and administrative expenses	14,673	11,983	39,710	35,053
NON-OPERATING (INCOME) EXPENSES:
Interest expense, net	1,042	286	2,088	901
Other (income) expense, net	666	206	993	434
Total expense, net	16,381	12,475	42,791	36,388
INCOME BEFORE INCOME TAXES	6,799	5,357	14,103	17,865
INCOME TAX PROVISION	1,567	1,511	3,049	4,325
NET INCOME	$ 5,232	$ 3,846	$ 11,054	$ 13,540
BASIC INCOME PER COMMON SHARE (in dollars per share)	$ 0.46	$ 0.34	$ 0.97	$ 1.19
DILUTED INCOME PER COMMON SHARE (in dollars per share)	0.46	0.34	0.97	1.19
CASH DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	$ 0.18	$ 0.18	$ 0.54	$ 0.54
WEIGHTED AVERAGE SHARES OUTSTANDING:
Basic (in shares)	11,417	11,411	11,417	11,411
Diluted (in shares)	11,417	11,411	11,418	11,411