CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash flows related to operating activities:
Net Income	$ 4,055,000	$ 100,000
Adjustments to reconcile net income to cash provided by operating activities:
Paycheck Protection loan forgiveness	(4,000,000)
Depreciation and amortization	1,368,000	1,442,000
Loss/(Gain) on disposal of property	98,000	(1,000)
Stock based compensation	106,000	339,000
(Decrease) in allowance for doubtful accounts	(57,000)	(149,000)
Increase in inventory reserve	22,000	283,000
Increase/(Decrease) in warranty reserve	129,000	(38,000)
Deferred income taxes	(84,000)	(30,000)
Change in assets and liabilities:
Accounts receivable	495,000	5,696,000
Inventories	3,252,000	(3,538,000)
Prepaid income taxes	(309,000)	(67,000)
Other current assets	(264,000)	139,000
Accounts payable	(948,000)	(2,859,000)
Accrued employee compensation and benefit costs	110,000	(634,000)
Other accrued liabilities	412,000	(126,000)
Post retirement obligation	105,000	168,000
Employee stock ownership trust payment	101,000	101,000
Net cash provided by operating activities	4,591,000	826,000
Cash flows related to investing activities:
Capital expenditures - property, plant and equipment	(267,000)	(729,000)
Proceeds from sale of assets	270,000
Net cash provided (used) by investing activities	3,000	(729,000)
Cash flows related to financing activities:
Principal payments on long-term debt	(1,334,000)	(547,000)
Principal payments on equipment financing lease obligations	(452,000)	(294,000)
Proceeds from equipment note and equipment financing lease	384,000
Proceeds from line of credit	500,000	750,000
Purchase of treasury shares	(81,000)	(100,000)
Proceeds from paycheck protection program		4,000,000
Net cash (used) provided by financing activities	(983,000)	3,809,000
Net increase in cash	3,611,000	3,906,000
Cash at beginning of year	5,935,000	2,029,000
Cash at end of year	$ 9,546,000	$ 5,935,000