Consolidated Statement of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (Loss)	$ 17,462,000	$ 14,553,000
Adjustments to reconcile net income (Loss) to net cash provided by operating activities:
Depreciation and amortization	5,037,000	5,375,000
Deferred income taxes	328,000	617,000
Loss on disposal of fixed assets	108,000	109,000
Stock compensation expense	662,000	588,000
Change in assets and liabilities:
Receivables	(4,547,000)	2,165,000
Inventories	(3,909,000)	(7,199,000)
Other current assets	(4,302,000)	310,000
Other assets	(145,000)	50,000
Accounts payable	456,000	61,000
Accrued and other liabilities	6,938,000	1,803,000
Net cash provided by operating activities	18,088,000	17,570,000
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of fixed assets	(7,719,000)	(4,238,000)
Proceeds from sales of fixed assets	19,000	19,000
Net cash used in investing activities	(7,700,000)	(4,219,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from revolving credit facility		7,771,000
Repayments on revolving credit facility		(9,971,000)
Proceeds from stock options	444,000	135,000
Repurchase of common stock	(1,500,000)	(1,310,000)
Dividends paid on common stock	(3,987,000)	(3,484,000)
Net cash used in financing activities	(5,043,000)	(6,859,000)
(DECREASE) INCREASE IN CASH AND CASH	5,345,000	6,492,000
CASH AND CASH EQUIVALENTS:
BEGINNING OF PERIOD	10,173,000	3,681,000
END OF PERIOD	$ 15,518,000	$ 10,173,000