Condensed Consolidated Balance Sheets (USD $)	Mar. 31, 2014	Dec. 31, 2013
ASSETS
Cash and cash equivalents	$ 40,322,000	$ 40,406,000
Accounts receivable, net	33,672,000	42,907,000
Inventories	7,664,000	6,539,000
Prepaid expenses and other assets	6,106,000	7,265,000
Total current assets	87,764,000	97,117,000
Property and equipment, net	8,197,000	7,565,000
Other assets	625,000	702,000
Total assets	96,586,000	105,384,000
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	26,259,000	33,255,000
Accrued compensation	3,527,000	4,922,000
Accrued expenses	7,994,000	8,935,000
Deferred revenue	5,012,000	4,211,000
Credit facility borrowings	0	2,000,000
Total current liabilities	42,792,000	53,323,000
Other long-term liabilities	4,229,000	4,414,000
Total liabilities	47,021,000	57,737,000
Commitments and Contingencies (Note 8)
Stockholders' Equity:
Preferred stock, $.001 par value, 10,000 shares authorized, no shares issued or outstanding at December 31, 2013 and March 31, 2014	0	0
Common stock, $.001 par value, 100,000 shares authorized, 59,138 and 59,953 shares issued and outstanding at December 31, 2013 and March 31, 2014, respectively	60,000	59,000
Additional paid-in capital	332,462,000	330,103,000
Accumulated other comprehensive loss	(3,284,000)	(3,254,000)
Accumulated deficit	(279,673,000)	(279,261,000)
Total stockholders' equity	49,565,000	47,647,000
Total liabilities and stockholders' equity	$ 96,586,000	$ 105,384,000