Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net loss	$ (11,275)	$ (17,598)	$ (3,524)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Gain on sale of Portamedic and subsidiary	(3,430)	(65)	62
Depreciation and amortization	2,200	4,191	3,674
Amortization of deferred financing fees	298	136	138
Provision for bad debt expense	(380)	207	107
Share-based compensation expense	643	710	647
Impairment of long-lived assets and gain/loss on disposal of fixed assets	416	5,310	240
Change in assets and liabilities:
Accounts receivable	9,000	1,161	991
Inventories	(62)	(5)	(73)
Other assets	(184)	1,334	(438)
Accounts payable, accrued expenses and other long-term liabilities	(4,255)	442	(1,038)
Net cash (used in) provided by operating activities	(7,029)	(4,177)	786
Cash flows from investing activities:
Cost paid to sell Portamedic	(781)	0	0
Capital expenditures	(1,550)	(4,103)	(4,821)
Proceeds from the sale of Portamedic	6,053	0	0
Proceeds from sale of fixed assets	0	51	0
Net cash provided by (used in) investing activities	3,722	(4,052)	(4,821)
Cash flows from financing activities:
Issuance of debt	50,827	0	0
Principal payments on debt	(50,827)	0	0
Debt financing fees	(999)	(101)	(101)
Proceeds related to the exercise of stock options	71	0	0
Reduction in capital lease obligation	(114)	(268)	(338)
Net cash used in financing activities	(1,042)	(369)	(439)
Net decrease in cash and cash equivalents	(4,349)	(8,598)	(4,474)
Cash and cash equivalents at beginning of year	8,319	16,917	21,391
Cash and cash equivalents at end of year	3,970	8,319	16,917
Supplemental disclosure of non-cash investing activities:
Fixed assets vouchered but not paid	153	154	308
Fixed assets acquired by capital leases	0	64	354
Proceeds from sale of Portamedic not received, net of costs not paid	1,525	0	0
Supplemental disclosure of cash flow information:
Cash paid during the period for income taxes	$ 62	$ 50	$ 121