Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net loss	$ (1,076)	$ (2,885)
AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract
Depreciation	847	1,078
Amortization of intangible assets	698	716
Amortization of lease right of use asset, net	(4)	7
Lower of cost or net realizable value adjustment	(763)	(868)
Allowance for doubtful accounts	28	432
Value of share-based arrangements	361	125
Amortization of deferred finance costs	277	280
Deferred tax (benefit)	59	(13)
Changes in assets and liabilities:
Trade accounts receivable	(4,165)	(7,824)
Inventories	(2,390)	1,818
Prepaid and other assets	(998)	364
Income taxes receivable	335
Accounts payable and accrued expenses	1,822	3,175
Cash used in operating activities	(4,969)	(3,595)
Cash flows from investing activities:
Additions to property, plant, and equipment	(290)	(188)
Cash used in investing activities	(290)	(188)
Cash flows from financing activities:
Borrowing of short-term debt - net	8,000	8,000
Repayment of long-term debt	(1,314)	(566)
Cash provided by financing activities	6,686	7,434
Increase in cash and cash equivalents	1,427	3,651
Cash and cash equivalents at beginning of period	1,348	2,600
Cash and cash equivalents at end of period	2,775	6,251
Supplemental Disclosure of Cash Flow Information:
Cash paid during period for interest	2,480	2,186
Cash refund from income taxes - net	$ 442	$ 30