CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash Flows from Operating Activities
Net income (loss)	$ 2,290,000	$ (4,954,000)
Non-cash charges:
Depreciation	1,788,000	1,787,000
Amortization of other intangible assets	631,000	702,000
Operating lease expense	895,000	899,000
Amortization of debt issue costs	16,000	16,000
Amortization of consideration payable to customer	270,000	270,000
Provision for doubtful accounts	10,000	24,000
Stock-based compensation	5,000	41,000
Restricted stock-based compensation	43,000	41,000
(Loss) gain on sale of fixed assets	(27,000)	35,000
Deferred income taxes	(120,000)	(11,000)
Fair value adjustment of assets held for sale	88,000	0
Gain on contingent consideration settlement	0	(52,000)
Gain on lease obligation settlement	0	(31,000)
Gain on forgiveness of grant obligation	(2,929,000)	(53,000)
Impairment of assets	0	1,612,000
Changes in operating assets and liabilities:
Accounts receivable	(96,000)	1,835,000
Inventories	(5,671,000)	4,538,000
Prepaid expenses and other current assets	(1,825,000)	(1,341,000)
Accounts payable	726,000	352,000
Accrued compensation and benefits	954,000	(1,498,000)
Accrued other liabilities	(264,000)	(185,000)
Operating lease liabilities	(888,000)	(918,000)
Other liabilities	(45,000)	(62,000)
Total adjustments	(6,439,000)	8,001,000
Net cash (used in) provided by operating activities	(4,149,000)	3,047,000
Cash Flows from Investing Activities:
Capital expenditures	(642,000)	(1,104,000)
Proceeds from sale or disposal of machinery and equipment	58,000	1,000
Net cash used in investing activities	(584,000)	(1,103,000)
Cash Flows from Financing Activities:
Dividend payments	0	(157,000)
Proceeds from exercise of stock options	0	18,000
Net proceeds (payments) from short-term borrowings	4,391,000	(4,274,000)
Proceeds from Grant	0	53,000
Proceeds from PPP loan	0	2,929,000
Net cash provided by (used in) financing activities	4,391,000	(1,431,000)
Effect of exchange rate changes on cash	(23,000)	11,000
Net (decrease) increase in cash	(365,000)	524,000
Cash at beginning of year	904,000	380,000
Cash at end of year	539,000	904,000
Cash paid for:
Interest	39,000	120,000
Income taxes	22,000	35,000
Cash paid for amounts included in the measurement of operating lease liabilities	10,000	5,000
Supplemental disclosures of non-cash investing and financing activities:
Right of Use ("ROU") assets recognized for new operating lease liabilities	$ 427,000	$ 140,000