Consolidated Statements of Cash Flows - USD ($)
|
12 Months Ended |
May 31, 2018 |
May 31, 2017 |
May 31, 2016 |
| Cash flows relating to operating activities |
|
|
|
| Net income (loss) |
$ 210,639
|
$ (1,073,364)
|
$ (1,515,189)
|
| Adjustments to reconcile net income (loss) to net cash used in operating activities: |
|
|
|
| Depreciation and amortization |
205,239
|
219,082
|
245,824
|
| (Gain) loss on disposal of property and equipment |
619
|
(7,223)
|
(299)
|
| Stock based compensation |
50,336
|
79,765
|
58,198
|
| (Increase) decrease in: |
|
|
|
| Accounts receivable |
311,433
|
(272,506)
|
548,650
|
| Inventories |
(1,494,009)
|
478,532
|
(192,509)
|
| Prepaid expenses |
(32,463)
|
14,267
|
20,737
|
| Income taxes receivable |
7,310
|
1,122
|
(7,403)
|
| Increase (decrease) in: |
|
|
|
| Accounts payable |
(78,049)
|
230,242
|
46,787
|
| Accrued liabilities and customer deposits |
(187,897)
|
181,795
|
(24,604)
|
| Income taxes payable |
3,993
|
0
|
0
|
| Net cash used in operating activities |
(1,002,849)
|
(148,288)
|
(819,808)
|
| Cash flows relating to investing activities |
|
|
|
| Purchase of property and equipment |
(8,467)
|
(52,633)
|
(3,520)
|
| Proceeds from sale of property and equipment |
1,500
|
52,535
|
14,950
|
| Net cash provided by (used in) investing activities |
(6,967)
|
(98)
|
11,430
|
| Cash flows relating to financing activities |
|
|
|
| Common stock issued through rights offering, net of expenses |
2,386,029
|
0
|
0
|
| Net cash provided by financing activities |
2,386,029
|
0
|
0
|
| Effect of foreign exchange translation on cash |
(132,287)
|
27,307
|
1,410
|
| Increase (decrease) in cash and cash equivalents |
1,243,926
|
(121,079)
|
(806,968)
|
| Cash, cash equivalents and restricted cash, beginning of period |
867,607
|
988,686
|
1,795,654
|
| Cash, cash equivalents and restricted cash, end of period |
2,111,533
|
867,607
|
988,686
|
| Supplemental disclosure of cash flow information |
|
|
|
| Cash paid during the year for income taxes |
14,661
|
27,772
|
27,496
|
| Cash paid during the year for interest |
$ 1,401
|
$ 2,982
|
$ 2,988
|