Condensed Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash flows from operating activities:
Net (loss) income	$ (929)	$ 231
Adjustments to reconcile net (loss) income to net cash used in operating activities:
(Recovery of)/provision for uncollectible accounts and returns	(2)	18
Provision for excess and obsolete inventories	25
Depreciation and amortization	135	145
Amortization of stock-based compensation	151	91
Change in assets and liabilities:
Trade accounts receivable	(352)	(1,396)
Inventories	(341)	115
Prepaid expenses and other current assets	(93)	(549)
Other assets	34	128
Accounts payable, deferred revenue and accrued liabilities	143	(430)
Accrued compensation	(233)	71
Deferred lease obligations	(17)	(14)
Net cash used in operating activities	(1,479)	(1,590)
Cash flows from investing activities:
Purchase of property and equipment	(77)	(53)
Purchase of capitalized software	(49)	(6)
Proceeds from the sale of marketable securities	1,980	3,441
Purchase of marketable securities	(2,056)
Net cash (used in) provided by investing activities	(202)	3,382
Cash flows from financing activities:
Borrowings under credit facility	3,500
Payments on credit facility	(3,500)
Proceeds from the exercise of stock options	508	442
Net cash provided by financing activities	508	442
Effect of exchange rate changes on cash and cash equivalents		51
Net (decrease) increase in cash and cash equivalents	(1,173)	2,285
Cash and cash equivalents at beginning of period	7,470	4,772
Cash and cash equivalents at end of period	$ 6,297	$ 7,057