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Consolidated Statements of Cash Flows (Unaudited) - USD ($)
12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Cash flows from operating activities    
Net (loss) income $ (2,680,323) $ 1,060,104
Adjustments to reconcile net (loss) income to net cash provided by operating activities:    
Depreciation and amortization 3,464,156 3,403,581
Interest from amortization of debt costs 117,261 19,685
Gain on disposal of property and equipment (77,047) (258)
Stock-based compensation on stock options & RSUs, net 394,790 373,554
Provision for doubtful accounts receivable (6,658) (16,417)
Change in fair value of warrant liability 0 194,632
Change in fair value of Sellers Note 0 (396,163)
Deferred rent amortization 370,701 (81,475)
Inventory write-offs to reserves 125,234 187,547
Deferred tax benefit (28,000) (533,806)
Changes in operating assets and liabilities:    
Trade accounts receivables (833,665) 618,393
Other receivables (306,348) (15,997)
Inventories (1,405,020) (1,330,994)
Prepaid expenses and other assets 392,925 (685,260)
Accounts payable and accrued liabilities 883,179 (178,138)
Net cash provided by operating activities 411,185 2,618,988
Cash flows from investing activities    
Purchase of property and equipment (1,931,835) (2,517,685)
Proceeds from sale of equipment 683,250 0
Net cash used in investing activities (1,248,585) (2,517,685)
Cash flows from financing activities    
Proceeds from exercise of stock options 13,767 226,001
Proceeds from sale of common stock from employee stock purchase plan 38,438 48,591
Loan costs (92,860) (61,253)
Borrowings on loan payable 5,813,500 2,942,583
Proceeds from exercise of warrants, net of costs 0 534,318
Payments on loan payable (6,831,503) (4,716,536)
Payments on capital lease obligations (342,871) (287,354)
Net cash used in financing activities (1,401,529) (1,313,650)
Effect of exchange rate on cash and cash equivalents 335,010 (364,048)
Change in cash and cash equivalents and restricted cash (1,903,919) (1,576,395)
Cash and cash equivalents and restricted cash, beginning of period 6,508,620 8,085,015
Cash and cash equivalents, end of period 4,604,701 6,508,620
Supplemental disclosure of cash flow information:    
Interest paid in cash 500,985 546,306
Income taxes paid 406,526 386,471
Supplemental disclosure of non-cash investing & financing activities:    
Purchase of equipment through capital lease arrangements 530,253 763,247
Landlord credits for leasehold improvements 309,450 0
Reclassification of warrant liability upon exercise 0 685,132
Derecognition of liability associated with stock option grants 0 283,399
Conversion of Sellers Note to common stock $ 0 $ 2,247,064