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 income (loss)	$ (6,822)	$ 5,664		$ (6,826)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	1,833	2,016		2,635
Share-based compensation expense	713	1,191		2,469
Provision for doubtful accounts	580	116		296
Deferred income taxes	(57)	653		(1,130)
Amortization of premium on marketable securities	0	0		39
Gain on sale of deferred consideration litigation	0	(2,314)		0
Loss on disposition of property and equipment	26	28		46
Gain (loss) on sale of subsidiary	0	(23,272)		3,154
Impairment of goodwill and other intangibles	0	3,007		7,095
Changes in operating assets and liabilities:
Accounts receivable	(17,417)	11,439		(376)
Inventories	(43)	(689)		8,546
Other assets	9,067	(5,927)		6,064
Accounts payable	2,993	(5,104)		(43)
Accrued liabilities	2,478	(1,002)		(903)
Income tax payable	(41)	(2,168)		1,149
Deferred revenue	3,146	155		(3,483)
Other current liabilities	(444)	281		(2,376)
Net cash provided by (used in) operating activities	(3,988)	(15,926)		16,356
Cash flows from investing activities:
Purchases of property and equipment	(3,662)	(2,909)		(3,118)
Proceeds from sale of property and equipment	0	192		143
Purchases of intangibles	(473)	(400)		(474)
Proceeds from sale of subsidiaries, net of cash acquired	0	38,233		1,155
Investment in restricted time deposits	(9)	1,371		152
Proceeds from sale or maturity of investments	0	0		13,474
Net cash provided by investing activities	(4,144)	36,487		11,332
Cash flows from financing activities:
Net proceeds from exercise of stock options	0	0		234
Purchase of treasury shares	(3,884)	(3,257)		(425)
Borrowings on short-term debt	11,219	24,004		43,153
Payments on short-term debt	(12,347)	(27,958)		(52,371)
Borrowing on long-term obligations	0	459		0
Dividend payment	0	(57,957)		(75,000)
Payments on long-term obligations	0	(230)		0
Net cash used by financing activities	(5,012)	(64,939)		(84,409)
Effect of exchange rate changes on cash and cash equivalents	126	1,271		(564)
Net increase (decrease) in cash and cash equivalents	(13,018)	(43,107)		(57,285)
Cash and cash equivalents, beginning of year	40,609	83,716	[1]	141,001	[1]
Cash and cash equivalents, end of year	27,591	40,609		83,716	[1]
Supplemental disclosure of cash flow information:
Cash paid during year for interest — continuing operations	291	416		760
Cash paid during year for interest — discontinued operations	0	0		18
Cash paid during year for interest — Total	291	416		778
Cash paid during year for income taxes — continuing operations	1,800	1,540		3,147
Cash paid during year for income taxes — discontinued operations	0	295		2,016
Cash paid during year for income taxes — Total	1,800	1,835		5,163
Cash and Cash Equivalents From Discontinued Operations, at Carrying Value		$ 25,126		$ 15,403

[1] The cash and cash equivalents at the beginning of the periods presented include $25,126 and $15,403 from discontinued operations for December 31, 2012 and 2011, respectively.