Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating activities
Net income (loss)	$ 2,550	$ 8,636	$ (222)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Impairment charge	120	60
Depreciation and amortization	2,502	2,178	2,772
Amortization of unearned stock compensation	1,471	1,298	1,176
Non-cash lease expense	5,887
Provision for doubtful accounts	119	73	68
Provision for refund liability	84	37	180
Provision for inventory obsolescence	515	615	34
Deferred income taxes	431	(1,344)	1,314
Other non-cash items	54	25	42
Changes in operating assets and liabilities:
Accounts receivable	2,625	(2,507)	(12,719)
Inventories	(20,259)	(6,825)	(7,942)
Income taxes	(918)	14	1,499
Prepaid expenses	(265)	1,201	(1,368)
Lease payments	(6,194)
Book overdraft		(3,028)	(153)
Trade accounts payable	2,605	2,804	38
Accrued and other current liabilities	2,394	2,460	3,571
Other operating activities	673	(359)	368
Net cash (used in) provided by operating activities	(5,606)	5,338	(11,342)
Investing activities
Purchase of property and equipment	(2,379)	(1,503)	(1,769)
Proceeds from disposals of property and equipment	5	20	8
Cash refunded (paid) for acquisition			193
Net cash used in investing activities	(2,374)	(1,483)	(1,568)
Financing activities
Borrowings on revolver	364,671	367,513	333,301
Payments on revolver	(352,487)	(369,752)	(320,133)
Payment of dividends	(36)	(48)	(81)
Purchase of treasury stock/stock surrendered on vested awards	(1,172)	(175)	(177)
Lease payments	(293)
Net cash (used in) provided by financing activities	10,683	(2,462)	12,910
Net change in cash	2,703	1,393
Cash at beginning of year	1,393
Cash at end of year	4,096	1,393
Supplemental disclosures
Cash paid during the year for interest	3,011	2,811	1,961
Cash paid during the year for income taxes	$ 1,762	$ 3,696	$ 64