Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flow from operating activities:
Net loss	$ (4,137)	$ (1,332)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation	1,046	1,219
Amortization	81	102
Stock and share-based compensation	393	548
Change in fair value derivative warrant liability	588	0
Loss (gain) on involuntary conversion of property and equipment	(147)	6
Gain on extinguishment of PPP loan	0	(1,792)
Provision for bad debts	118	0
Other	(32)	15
Changes in operating assets and liabilities:
Accounts receivable	(20)	262
Inventories	132	42
Accounts payable and accrued expenses	647	197
Commodities payable	10	44
Other	(417)	(727)
Net cash used in operating activities	(1,738)	(1,416)
Cash flows from investing activities:
Purchases of property and equipment	(421)	(540)
Proceeds from insurance on involuntary conversion	109	263
Net cash used in investing activities	(312)	(277)
Cash flows from financing activities:
Advances on insurance premium finance agreements	794	962
Payments on insurance premium finance agreements	(392)	(332)
Payments on long-term debt and finance lease liabilities	(639)	(336)
Proceeds from common stock warrant exercises	0	171
Net cash provided by financing activities	1,349	440
Net change in cash and cash equivalents	(701)	(1,253)
Cash and cash equivalents, beginning of period	5,825	5,263
Cash and cash equivalents, end of period	5,124	4,010
Net change in cash and cash equivalents	(701)	(1,253)
Supplemental disclosures:
Cash paid for interest	229	179
Cash paid for income taxes	19	16
Factoring Agreement [Member]
Cash flows from financing activities:
Advances on line of credit	18,173	15,660
Payments on factoring agreement	(18,387)	(15,685)
Line of Credit With Bank [Member]
Cash flows from financing activities:
Advances on line of credit	$ 1,800	$ 0