CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows related to operating activities:
Net (Loss)Income	$ (1,547,000)	$ 325,000
Adjustments to reconcile net (loss) income to net cash used by operating activities:
Depreciation and amortization	306,000	313,000
Gain on sale of equipment		(26,000)
Stock based compensation	55,000	25,000
(Decrease)/increase in allowance for credit losses	(10,000)	65,000
(Decrease)/increase in inventory reserve	(175,000)	168,000
Increase in warranty reserve	13,000
Deferred income taxes	2,000
Change in assets and liabilities:
Accounts receivable	(1,267,000)	(2,171,000)
Inventories	(788,000)	(222,000)
Prepaid income taxes		199,000
Other current assets	(1,022,000)	(783,000)
Accounts payable	972,000	1,669,000
Accrued employee compensation and benefit costs	200,000	(72,000)
Other accrued liabilities	388,000	(68,000)
Post retirement obligation	39,000	34,000
Net cash used by operating activities	(2,834,000)	(544,000)
Cash flows related to investing activities:
Capital expenditures - property, plant and equipment	(437,000)	(115,000)
Proceeds from sale of assets		38,000
Net cash used by investing activities	(437,000)	(77,000)
Cash flows related to financing activities:
Principal payments on equipment financing lease/note obligations	(501,000)	(70,000)
Proceeds from line of credit, net	939,000
Net cash provided (used) by financing activities	438,000	(70,000)
Net decrease in cash and restricted cash	(2,833,000)	(691,000)
Cash and restricted cash at beginning of period	4,004,000	9,546,000
Cash and restricted cash at end of period	$ 1,171,000	$ 8,855,000