CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (8,091)	$ (9,638)
Loss from discontinued operations		1,184
Loss from continuing operations	(8,091)	(8,454)
Adjustments to reconcile net cash used in operating activities:
Depreciation and amortization expense	7,860	7,263
Stock-based compensation	1,289	830
Allowance for doubtful accounts	254	352
Common stock issued under defined contribution 401(k) plan		150
Loss on disposal of assets	92	139
Changes in operating assets and liabilities:
Accounts receivable	1,246	(6,165)
Inventories	(15,362)	(4,704)
Prepaid expenses and other current assets	1,526	645
Accounts payable	16,817	(3,959)
Accrued liabilities	(222)	(438)
Customer deposits	(8,607)	12,156
Other non-current assets and liabilities	832	319
Net cash used in operating activities of continuing operations	(2,366)	(1,866)
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sale of logistics business	175	761
Purchases of available for sale securities		(103)
Purchases of property and equipment	(2,165)	(2,850)
Proceeds from disposals of property and equipment	87	404
Decrease in restricted cash	646
Net cash used in investing activities of continuing operations	(1,257)	(1,788)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments on lines of credit and notes payable	(1,954)	(709)
Proceeds from lines of credit and notes payable		43
Proceeds from sale-leaseback transactions	1,000
Principal payments on capital leases	(627)	(425)
Net cash used in financing activities of continuing operations	(1,581)	(1,091)
DISCONTINUED OPERATIONS:
Operating cash flows		(829)
Investing cash flows	0
Financing cash flows		(83)
Net cash used in discontinued operations		(912)
Add: Cash balance of discontinued operations, beginning of period	0	530
Less: Cash balance of discontinued operations, end of period	0	0
NET DECREASE IN CASH AND CASH EQUIVALENTS	(5,204)	(5,127)
CASH AND CASH EQUIVALENTS, beginning of the period	13,340	15,331
CASH AND CASH EQUIVALENTS, end of the period	8,136	10,204
Supplemental cash flow information:
Interest paid, net of capitalized interest	530	457
Income taxes paid	24	34
Non-cash investing and financing activities:
Issuance of restricted stock grants	812	365
Common stock issued under defined contribution 401(k) plan		$ 150