Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 20,465,000	$ 20,559,000	$ 20,964,000
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	12,320,000	11,342,000	5,240,000
Amortization of debt issuance costs	853,000	675,000	0
Provision for bad debts	3,254,000	302,000	452,000
Deferred income taxes	(2,209,000)	2,022,000	164,000
(Gain) Loss on disposal of assets	(789,000)	41,000	28,000
Stock compensation expense	1,230,000	1,265,000	780,000
Change in assets and liabilities:
Receivables	28,222,000	(42,245,000)	(2,725,000)
Contract receivables	1,062,000	4,108,000	(424,000)
Inventories	(4,986,000)	(114,226,000)	(845,000)
Other current assets	440,000	(9,791,000)	(993,000)
Other assets	389,000	(152,000)	(80,000)
Accounts payable	(45,921,000)	78,626,000	4,459,000
Accrued and other liabilities	468,000	2,432,000	2,566,000
Income taxes	5,387,000	(5,313,000)	1,019,000
Contract liabilities	(1,062,000)	(4,520,000)	836,000
Net cash provided by (used in) operating activities	19,123,000	(54,875,000)	31,441,000
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of fixed assets	(6,702,000)	(21,055,000)	(11,716,000)
Acquisition of business, net of cash acquired	0	(212,408,000)	0
Proceeds from sales of fixed assets	0	0	5,000
Proceeds from the sale of assets	5,468,000	0	0
Net cash used in investing activities	(1,234,000)	(233,463,000)	(11,711,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from revolving credit facility	37,492,000	180,072,000	20,000,000
Repayments on revolving credit facility	(40,263,000)	(34,000,000)	(20,000,000)
Proceeds from term loan	0	130,000,000	0
Repayments on term loan	(11,231,000)	(2,438,000)	0
Debt issuance costs	0	(4,266,000)	0
Proceeds from stock options	461,000	825,000	136,000
Repurchase of common stock	0	0	(2,938,000)
Dividends paid on common stock	(4,538,000)	(4,299,000)	(4,093,000)
Net cash (used in) provided by financing activities	(18,079,000)	265,894,000	(6,895,000)
(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(190,000)	(22,444,000)	12,835,000
CASH AND CASH EQUIVALENTS:
BEGINNING OF PERIOD	5,909,000	28,353,000	15,518,000
END OF PERIOD	$ 5,719,000	$ 5,909,000	$ 28,353,000