Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 14,636	$ 20,035
Accounts receivable, net of allowance for doubtful accounts of $154 and $161, respectively.	17,685	15,542
Other receivables	318	405
Inventories	19,496	18,099
Prepaid expenses and other current assets	1,329	1,023
Total current assets	53,464	55,104
Property and equipment, net	4,658	4,454
Goodwill	27,073	27,073
Intangibles, net	43,082	43,439
Deposits and other assets	190	185
Total assets	128,467	130,255
Current liabilities:
Accounts payable	6,296	6,377
Accrued payroll	6,270	6,569
Accrued expenses and other liabilities	2,155	1,003
Total current liabilities	14,721	13,949
Deferred income taxes	1,029	1,029
Deferred rent	0	8
Contingently issuable common stock (Note 9)	51,150	38,700
Total liabilities	66,900	53,686
Commitments and contingencies
Stockholders’ equity:
Common stock, $0.001 par value; 75,000,000 shares authorized. 58,722,493 and 58,577,484 shares issued, respectively. 58,227,793 and 58,082,784 shares outstanding, respectively.	59	59
Additional paid-in capital	243,137	241,441
Accumulated deficit	(180,943)	(164,240)
Treasury stock, at cost, 495,000 shares	(661)	(661)
Accumulated other comprehensive loss	(25)	(30)
Total stockholders’ equity	61,567	76,569
Total liabilities and stockholders’ equity	128,467	130,255
Convertible Preferred Stock [Member]
Stockholders’ equity:
Convertible preferred stock, $0.001 par value; 5,000,000 shares authorized. No shares were issued and outstanding.	$ 0	$ 0