Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flow from operating activities:
Net income	$ 1,667	$ 656
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation	1,039	2,521
Provision for loss on doubtful accounts	276	518
Loss on sale of investments		8
Impairment charges		37
Gain on sale of assets	(115)	(188)
Stock-based compensation	669	1,082
Insurance reserve	(98)	100
Changes in operating assets and liabilities:
Patient accounts receivable	(926)	(1,624)
Other accounts receivable	(1,164)	(135)
Prepaid expenses and other	(1,376)	520
Accounts payable	(198)	(163)
Deferred revenue, net of professional fees	(542)	(1,338)
Accrued liabilities and other	(2,291)	(1,548)
Net cash (used in) provided by operations	(3,059)	446
Cash flow from investing activities:
Purchases of property and equipment	(195)	(589)
Proceeds from sale of assets	137	207
Purchases of investment securities		(36,855)
Proceeds from sale of investment securities	2,804	59,264
Net cash provided by investing activities	2,746	22,027
Cash flow from financing activities:
Principal payments on loans		(4,004)
Shares repurchased for treasury stock	(231)	(357)
Proceeds from exercise of stock options		57
Net cash used in financing activities	(231)	(4,304)
Net effect of exchange rate changes on cash and cash equivalents	(243)	(22)
(Decrease) increase in cash and cash equivalents	(787)	18,147
Cash and cash equivalents at beginning of period	31,653	18,568
Cash and cash equivalents at end of period	$ 30,866	$ 36,715