Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Net loss	$ (3,138)	$ (57)
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation	962	780
Amortization	78	91
Provision for bad debt expense	30	(20)
Share-based compensation expense	148	89
(Gain) loss on disposal of fixed assets	(14)	2
Change in assets and liabilities:
Accounts receivable	(2,175)	(2,307)
Inventories	(280)	(181)
Other assets	655	207
Accounts payable, accrued expenses and other long-term liabilities	1,378	408
Net cash used in operating activities	(2,356)	(988)
Cash flows from investing activities:
Capital expenditures	(986)	(901)
Proceeds from sale of fixed assets	50	0
Net cash used in investing activities	(936)	(901)
Cash flows from financing activities:
Reduction in capital lease obligations	(72)	(69)
Debt financing fees	(101)	(101)
Net cash used in financing activities	(173)	(170)
Net decrease in cash and cash equivalents	(3,465)	(2,059)
Cash and cash equivalents at beginning of period	16,917	21,391
Cash and cash equivalents at end of period	13,452	19,332
Supplemental disclosure of non-cash investing activities:
Fixed assets vouchered but not paid	541	276
Fixed assets acquired by capital lease	0	125
Supplemental disclosure of cash paid during the period for:
Income taxes	$ 12	$ 30