Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Cash flows from operating activities:
Net (loss) income	$ (3,524)	$ 1,476	$ (4)
Income (loss) from discontinued operation, net of income taxes	62	55	(41)
(Loss) income from continuing operations	(3,586)	1,421	37
Adjustments to reconcile (loss) income from continuing operations to net cash provided by operating activities of continuing operations:
Depreciation	3,332	4,476	6,660
Amortization	342	395	497
Provision for bad debt expense	107	78	20
Share-based compensation expense	647	572	662
Write-off of software in development	210	65	0
Loss on disposal of fixed assets	30	141	180
Change in assets and liabilities, net of effect from dispositions of business:
Accounts receivable	991	803	4,885
Inventories	(73)	597	115
Other assets	(237)	859	(1,324)
Income tax receivable	0	1,479	(1,448)
Accounts payable, accrued expenses and other long-term liabilities	(977)	(1,536)	(1,615)
Net cash provided by operating activities of continuing operations	786	9,350	8,669
Net cash used in operating activities of discontinued operations	0	0	(300)
Net cash provided by operating activities	786	9,350	8,369
Cash flows from investing activities:
Capital expenditures	(4,821)	(4,346)	(3,138)
Net cash used in investing activities of continuing operations	(4,821)	(4,346)	(3,138)
Net cash provided by investing activities of discontinued operations	0	0	83
Net cash used in investing activities	(4,821)	(4,346)	(3,055)
Cash flows from financing activities:
Proceeds from employee stock purchase plan	0	153	0
Reduction in capital lease obligation	(338)	(160)	(130)
Debt financing fees	(101)	(101)	(236)
Net cash used in financing activities of continuing operations	(439)	(108)	(366)
Net (decrease) increase in cash and cash equivalents	(4,474)	4,896	4,948
Cash and cash equivalents at beginning of year	21,391	16,495	11,547
Cash and cash equivalents at end of year	16,917	21,391	16,495
Supplemental disclosure of non-cash investing activities:
Fixed assets vouchered but not paid	308	467	224
Fixed assets acquired by capital leases	354	200	0
Supplemental disclosure of cash flow information:
Interest	0	0	1
Income taxes	$ 121	$ 229	$ 101