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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
12 Months Ended
Dec. 28, 2018
Dec. 29, 2017
Dec. 30, 2016
Cash flows from operating activities:      
Net income (loss) $ 4,968 $ (2,139) $ (12,129)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:      
Depreciation of property, plant, and equipment 2,430 3,133 2,664
Amortization of intangibles 34 221 228
Deferred income taxes 441 (547) (1,364)
Change in net pension liability 231 186 491
Loss on disposal of property and equipment 10 623 222
Stock-based compensation expense 6,762 3,161 8,558
Provision for sales returns and bad debts 905 463 205
Inventory provision 1,473 1,739 1,610
Changes in working capital:      
Accounts receivable (6,040) (1,857) (771)
Inventories (4,194) 312 213
Prepayments, deposits, and other current assets (598) (64) (851)
Accounts payable 243 (2,501) 1,007
Other current liabilities 6,102 123 966
Net cash provided by operating activities 12,767 2,853 1,049
Cash flows from investing activities:      
Acquisition of property and equipment (2,245) (1,046) (3,205)
Net cash used in investing activities (2,245) (1,046) (3,205)
Cash flows from financing activities:      
Proceeds from public offering of stock 72,150    
Repayment of capital lease obligations (1,907) (1,300) (424)
Repayment on line of credit (747)    
Proceeds from sale-leaseback transactions     1,546
Repurchase of employee common stock for taxes withheld (54) (234) (611)
Proceeds from the exercise of stock options 5,195 3,970 2,438
Proceeds from vested restricted stock 2 1 4
Net cash provided by financing activities 74,639 2,437 2,953
Effect of exchange rate changes on cash, cash equivalents and restricted cash 197 279 (200)
Increase in cash, cash equivalents and restricted cash 85,358 4,523 597
Cash, cash equivalents and restricted cash, at beginning of year 18,641 14,118 13,521
Cash, cash equivalents and restricted cash, at end of year $ 103,999 $ 18,641 $ 14,118