XML 21 R7.htm IDEA: XBRL DOCUMENT v3.19.1
CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
 12 Months Ended
Dec. 29, 2018
Dec. 30, 2017
Dec. 31, 2016
Cash flows from operating activities:      
Net loss $ (35,818,575) $ (25,380,115) $ (23,031,145)
Adjustments to reconcile net loss to net cash used in operating activities:      
Depreciation and amortization 1,958,680 2,501,891 993,621
Accretion of premium or discount on marketable debt securities 15,948 41,364 130,032
Stock-based compensation 4,791,054 2,296,131 2,425,326
Net gain on investment transactions (2,849,816) (2,000,000) (1,034,396)
Deferred income taxes 4,185 (2,421,040) 1,451,858
Foreign currency losses 177,469 893,260 711,356
Loss (gain) on sale of property and plant 51,159   (7,700,522)
Impairment of assets 2,526,669    
Impairment of goodwill 1,417,470 600,086  
Change in allowance for bad debt (155,000) 13,000 (17,000)
Other non-cash items 832,615 654,694 677,330
Change in warranty reserves (79,633) 142,328 0
Changes in assets and liabilities:      
Accounts receivable 853,163 (2,376,593) (39,629)
Contract assets and unbilled receivables 865,474    
Inventory (1,656,196) (1,633,027) (1,527,602)
Prepaid expenses, other current assets and other assets 113,015 (1,084,146) 48,295
Accounts payable and accrued expenses (1,208,848) 1,924,751 1,163,586
Billings in excess of revenue earned (4,742) (85,282) (425,805)
Net cash used in operating activities (28,165,909) (25,912,698) (26,174,695)
Cash flows from investing activities:      
Proceeds from sale of marketable debt securities 26,646,078 37,536,004 50,835,253
Purchase of marketable debt securities (5,697,329) (19,633,903) (51,828,988)
Proceeds from sale of investments 0 0 1,034,396
Cash paid for acquisition, net of cash acquired (1,000,000) (3,690,047)  
Proceeds from sale of III-V product line 0 0 15,000,000
Proceeds from sale of property and plant 0 0 8,106,819
Other assets (8,373) (140,860) 80,793
Capital expenditures (1,183,131) (2,794,467) (394,897)
Net cash provided by investing activities 18,757,245 11,276,727 22,833,376
Cash flows from financing activities:      
Sale of unregistered stock   24,664,250  
Settlements of restricted stock for tax withholding obligations (208,015) (771,323) (510,597)
Distribution to noncontrolling interest holder (636,978) (791,737)  
Net cash (used in) provided by financing activities (844,993) 23,101,190 (510,597)
Effect of exchange rate changes on cash (268,223) 560,513 (93,478)
Net (decrease) increase in cash and cash equivalents (10,521,880) 9,025,732 (3,945,394)
Cash and cash equivalents at beginning of year 24,848,227 15,822,495 19,767,889
Cash and cash equivalents at end of year 14,326,347 24,848,227 15,822,495
Supplemental disclosure of cash flow information:      
Income taxes paid 1,374,000 281,000 723,000
Construction in progress included in accrued expenses $ 0 $ 212,000 $ 0