CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 1,482	$ (2,060)
Adjustments to reconcile net cash used in operating activities:
Depreciation and amortization expense	3,194	3,390
Deferred income taxes	21	(5)
Change in fair value of interest rate swap agreements	157	26
Stock-based compensation	556	510
Allowance for doubtful accounts	34	(12)
Common stock issued under defined contribution 401(k) plan		392
Gain on disposal of assets		(1)
Changes in operating assets and liabilities, net of acquisition:
Accounts receivable	(7,843)	(2,806)
Inventories	(5,748)	(13,088)
Prepaid expenses and other current assets	385	16
Accounts payable	520	3,306
Accrued liabilities	28	540
Customer deposits	(1,001)	(4,946)
Other non-current assets and liabilities	(23)	127
Net cash used in operating activities	(8,238)	(14,611)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(929)	(1,183)
Proceeds from disposals of property and equipment		1
Net cash used in investing activities	(929)	(1,182)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from line of credit	93,358	91,007
Payments on line of credit	(92,768)	(75,370)
Proceeds from long-term debt	9,530
Payments on long-term debt	(822)	(462)
Principal payments on finance leases	(428)	(485)
Net cash provided by financing activities	8,870	14,690
NET DECREASE IN CASH	(297)	(1,103)
CASH beginning of the period	2,416	1,177
CASH end of the period	$ 2,119	$ 74