Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows provided by operating activities
Net loss	$ (1,805)	$ (4,002)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	5,566	5,644
Equity-based compensation	1,194	(669)
Deferred provision for income taxes		328
Amortized interest on deferred debt issuance costs	344	164
Provision for doubtful accounts	87	243
Gain on disposal of property and equipment, net	(27)	(5)
Other	(282)	(65)
Changes in operating assets and liabilities:
Accounts receivable	4,581	3,219
Inventories	(6,257)	(2,154)
Prepaid expenses and other current assets	(2,337)	68
Other assets	(156)	(441)
Accounts payable	6,153	3,983
Accrued expenses and other current liabilities	(2,632)	3,292
Income taxes receivable	(315)	(2,252)
Customer deposits	1,699	474
Other long-term liabilities	(145)
Net cash provided by operating activities	5,668	7,827
Cash flows used in investing activities
Purchase of property and equipment	(402)	(1,371)
Proceeds from disposal of property and equipment	27	15
Net cash used in investing activities	(375)	(1,356)
Cash flows provided by (used in) financing activities
Proceeds from ERP financing		376
Proceeds from (payments on) line of credit, net	(2,486)	26,934
Term loan deferred issuance costs	(250)	(230)
Purchase of treasury stock	(372)	(655)
Payments on notes payable and capital leases	(786)	(705)
Principal payments on long-term debt	(263)	(264)
Net cash provided by (used in) financing activities	(4,157)	25,456
Net increase in cash	1,136	31,927
Cash, beginning of period	2,974	5,002
Cash, end of period	4,110	36,929
Supplemental disclosures of cash flow information
Cash paid for interest	3,006	3,585
Cash paid (refunded) for income taxes, net of refunds	(1,717)	59
Supplemental disclosures of non-cash investing activities
Acquisition of equipment and vehicles with long-term debt and capital leases	$ 404	$ 581