CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows related to operating activities:
Loss from continuing operations	$ (4,108,000)	$ (341,000)
Adjustments to reconcile net loss to net cash used by operating activities:
Depreciation and amortization	517,000	485,000
Stock based compensation	74,000	67,000
Decrease in allowance for credit losses	(25,000)	(3,000)
Increase (decrease) in inventory reserve	14,000	(46,000)
Decrease in warranty reserve	(2,000)	(15,000)
Deferred income taxes	1,072,000
Gain on sale of equipment		(26,000)
Change in assets and liabilities:
Accounts receivable	(2,663,000)	(2,785,000)
Inventories	(826,000)	1,506,000
Prepaid income taxes	(1,000)	680,000
Other current assets	(519,000)	(488,000)
Accounts payable	1,064,000	995,000
Accrued employee compensation and benefit costs	301,000	(159,000)
Post retirement obligations	66,000	61,000
Other accrued liabilities	(105,000)	(5,000)
Net cash used in operating activities from continuing operations	(5,141,000)	(74,000)
Cash flows related to investing activities:
Capital expenditures - property, plant and equipment	(403,000)	(428,000)
Proceeds from sale of assets		38,000
Net cash used by investing activities	(403,000)	(390,000)
Cash flows related to financing activities:
Advances on line of credit, net of payments	3,697,000
Principal payments on long-term debt		(4,250,000)
Principal payments on equipment financing lease obligations	(501,000)	(140,000)
Net cash provided (used) by financing activities	3,196,000	(4,390,000)
Discontinued Operation
Cash (used in) provided by operating activities	(568,000)	241,000
Net cash (used in) provided by operating activities from discontinued operation	(568,000)	241,000
Net decrease in cash and restricted cash	(2,916,000)	(4,613,000)
Cash and restricted cash at beginning of period	3,812,000	9,433,000
Cash and restricted cash at end of period	$ 896,000	$ 4,820,000