Condensed Consolidated Statements of Cash Flows (unaudited) (USD $)	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash flows from operating activities:
Net (loss) income	$ (2,051,000)	$ 548,000
(Recovery of)/provision for uncollectible accounts and returns	(2,000)	3,000
Provision for excess and obsolete inventories	20,000	0
Depreciation and amortization	224,000	280,000
Amortization of stock-based compensation	331,000	191,000
Change in assets and liabilities:
Trade accounts receivable	211,000	(415,000)
Inventories	(870,000)	121,000
Prepaid expenses and other current assets	1,000	146,000
Other assets	(29,000)	140,000
Accounts payable, deferred revenue and accrued liabilities	(1,000)	(920,000)
Accrued compensation	(51,000)	4,000
Deferred lease obligations	(37,000)	(31,000)
Net cash (used in) provided by operating activities	(2,254,000)	67,000
Cash flows from investing activities:
Purchase of property and equipment	(157,000)	(93,000)
Purchase of capitalized software	(72,000)	(64,000)
Proceeds from the sale of marketable securities	4,180,000	4,052,000
Purchase of marketable securities	(4,756,000)	(1,050,000)
Net cash (used in) provided by investing activities	(805,000)	2,845,000
Cash flows from financing activities:
Borrowings under credit facility	7,000,000	3,500,000
Payments on credit facility	(7,000,000)	(3,500,000)
Proceeds from the exercise of stock options	821,000	469,000
Net cash provided by financing activities	821,000	469,000
Effect of exchange rate changes on cash and cash equivalents	(2,000)	99,000
Net (decrease) increase in cash and cash equivalents	(2,240,000)	3,480,000
Cash and cash equivalents at beginning of period	7,470,000	4,772,000
Cash and cash equivalents at end of period	$ 5,230,000	$ 8,252,000