Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities:
Net (loss) income	$ (17,598)	$ (3,524)	$ 1,476
Income from discontinued operations, net of income taxes	65	62	55
(Loss) income from continuing operations	(17,663)	(3,586)	1,421
Adjustments to reconcile (loss) income from continuing operations to net cash (used in) provided by operating activities of continuing operations:
Depreciation	3,996	3,332	4,476
Amortization	195	342	395
Provision for bad debt expense	207	107	78
Share-based compensation expense	710	647	571
Impairment of long-lived assets and gain/loss on disposal of fixed assets	5,310	240	206
Change in assets and liabilities, net of effect from dispositions of business:
Accounts receivable	1,162	991	803
Inventories	(5)	(73)	597
Other assets	1,469	(237)	860
Income tax receivable	0	0	1,479
Accounts payable, accrued expenses and other long-term liabilities	442	(977)	(1,536)
Net cash (used in) provided by operating activities of continuing operations	(4,177)	786	9,350
Cash flows from investing activities:
Capital expenditures	(4,103)	(4,821)	(4,346)
Proceeds from sale of fixed assets	51	0	0
Net cash used in investing activities of continuing operations	(4,052)	(4,821)	(4,346)
Cash flows from financing activities:
Proceeds from employee stock purchase plan	0	0	153
Reduction in capital lease obligation	(268)	(338)	(160)
Debt financing fees	(101)	(101)	(101)
Net cash used in financing activities of continuing operations	(369)	(439)	(108)
Net (decrease) increase in cash and cash equivalents	(8,598)	(4,474)	4,896
Cash and cash equivalents at beginning of year	16,917	21,391	16,495
Cash and cash equivalents at end of year	8,319	16,917	21,391
Supplemental disclosure of non-cash investing activities:
Fixed assets vouchered but not paid	154	308	467
Fixed assets acquired by capital leases	64	354	200
Supplemental disclosure of cash flow information:
Cash paid during the period for income taxes	$ 50	$ 121	$ 229