Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Statement of Cash Flows [Abstract]
Net loss	$ (7,562)	$ (8,668)
Income from discontinued operations, net of income taxes	75	65
Loss from continuing operations	(7,637)	(8,733)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	1,260	1,972
Amortization	0	151
Amortization of debt financing fees	131	56
Provision for bad debt expense	84	37
Share-based compensation expense	213	331
Impairment and loss/gain on disposal of fixed assets	378	211
Change in assets and liabilities:
Accounts receivable	2,288	1,354
Inventories	(58)	(618)
Other assets	(349)	991
Accounts payable, accrued expenses and other long-term liabilities	(908)	998
Net cash used in operating activities of continuing operations	(4,598)	(3,250)
Cash flows from investing activities:
Capital expenditures	(630)	(2,030)
Proceeds from sale of fixed assets	0	51
Net cash used in investing activities of continuing operations	(630)	(1,979)
Cash flows from financing activities:
Borrowings under credit facility	23,311	0
Payments under credit facility	(20,393)	0
Reduction in capital lease obligations	(86)	(144)
Debt financing fees	(967)	(101)
Net cash provided by (used in) financing activities of continuing operations	1,865	(245)
Net decrease in cash and cash equivalents	(3,363)	(5,474)
Cash and cash equivalents at beginning of period	8,319	16,917
Cash and cash equivalents at end of period	4,956
Supplemental disclosure of non-cash investing activities:
Fixed assets vouchered but not paid	170	570
Fixed assets acquired by capital lease	62	0
Supplemental disclosure of cash paid during period for:
Income taxes	$ 52	$ 40