Quarterly report pursuant to Section 13 or 15(d)

UNAUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

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UNAUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Operating Activities    
Net loss $ (862) $ (2,300)
Adjustments to reconcile net loss to cash provided by operating activities:    
Amortization and depreciation 1,134 981
Amortization of investment premiums, net 210 223
Stock-based compensation 3,393 2,789
Deferred Income Tax Expense (Benefit) 11 0
Impairment of long-lived assets 0 64
Changes in operating assets and liabilities:    
Accounts receivable (1,320) (3,461)
Inventory (1,010) 1,229
Prepaid and other assets (42) 117
Accounts payable, accrued expenses and other current liabilities 590 (3,713)
Accrued compensation 2,039 2,277
Deferred Revenue and Deferred Profits 529 648
Accrued Price Protection Liability (637) 1,908
Other long-term liabilities 56 39
Net cash provided by operating activities 4,091 801
Investing Activities    
Purchases of property and equipment (1,445) (542)
Purchases of available-for-sale securities (18,699) (32,172)
Maturities of available-for-sale securities 18,195 27,300
Net cash used in investing activities (1,949) (5,414)
Financing Activities    
Payments on capital leases 0 (1)
Net proceeds from issuance of common stock 49 23
Minimum tax withholding paid on behalf of employees for restricted stock units (136) (48)
Net cash used in financing activities (87) (26)
Effect of exchange rate changes on cash and cash equivalents (5) 3
Increase (decrease) in cash and cash equivalents 2,050 (4,636)
Cash and cash equivalents at beginning of period 26,450 21,810
Cash and cash equivalents at end of period 28,500 17,174
Supplemental Cash Flow Information [Abstract]    
Income Taxes Paid 17 61
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]    
Capital Expenditures Incurred but Not yet Paid $ 2,009 $ 85