CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (5,059)	$ (3,860)
Loss from discontinued operations	210
LOSS FROM CONTINUING OPERATIONS	(4,849)	(3,860)
Adjustments to reconcile net cash used in operating activities:
Depreciation and amortization expense	3,986	3,950
Impairment charges	288
Stock-based compensation	427	665
Allowance for doubtful accounts	(154)	134
Common stock issued under defined contribution 401(k) plan	138
Loss on disposal of assets	15	23
Changes in operating assets and liabilities:
Accounts receivable	(6,314)	1,988
Inventories	(8,064)	(9,007)
Prepaid expenses and other current assets	(503)	932
Accounts payable	8,051	7,588
Accrued liabilities	(92)	(1,118)
Customer deposits	4,149	(2,729)
Other non-current assets and liabilities	82	35
Net cash used in operating activities of continuing operations	(2,840)	(1,399)
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sale of logistics business and related note receivable		125
Purchases of property and equipment	(1,375)	(715)
Proceeds from disposals of property and equipment	4	6
Decrease in restricted cash		472
Net cash used in investing activities of continuing operations	(1,371)	(112)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments on lines of credit and notes payable	(44,606)	(708)
Proceeds from lines of credit and notes payable	49,408
Principal payments on capital leases	(570)	(264)
Net cash provided by (used in) financing activities of continuing operations	4,232	(972)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	21	(2,483)
CASH AND CASH EQUIVALENTS, beginning of the period	516	13,340
CASH AND CASH EQUIVALENTS, end of the period	537	10,857
Supplemental cash flow information:
Interest paid, net of capitalized interest	334	268
Income taxes paid	13	6
Non-cash investing and financing activities:
Issuance of restricted stock grants	317	409
Common stock issued under defined contribution 401(k) plan	$ 138