| Mar'20 | Dec'19 | Sep'19 | Jun'19 | Mar'19 | Dec'18 | Sep'18 | Jun'18 | Mar'18 | Dec'17 | Sep'17 | Jun'17 | Mar'17 | Dec'16 | Sep'16 | Jun'16 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cash Flows From Operating Activities: | |||||||||||||||
Net loss | |||||||||||||||
-2,345,975 | -2,543,429 | -2,387,204 | -1,914,074 | -1,480,781 | -1,291,631 | -833,884 | -775,542 | -435,378 | -310,016 | -151,544 | -170,230 | -201,755 | -105,055 | -99,887 | -29,414 |
Adjustments to reconcile net loss to net cash used in operating activities: | |||||||||||||||
Depreciation and amortization | |||||||||||||||
25,098 | - | 8,376 | 7,399 | 5,174 | - | 3,227 | 2,585 | 2,261 | 2,150 | 2,081 | 1,635 | 795 | 437 | 438 | 437 |
Warranty provision | |||||||||||||||
13,882 | 2,719 | 7,273 | 1,206 | 2,297 | 0 | 0 | 0 | 0 | - | - | - | - | - | - | - |
Inventory write-off | |||||||||||||||
0 | -62,915 | -65,579 | -52,037 | -12,975 | 0 | 0 | 0 | 0 | - | - | - | - | - | - | - |
Non-cash lease expense | |||||||||||||||
29,628 | 29,112 | 28,746 | 16,359 | 5,852 | 0 | 0 | 0 | 0 | - | - | - | - | - | - | - |
Stock-based compensation expense | |||||||||||||||
467,246 | 461,541 | 473,657 | 373,851 | 227,047 | 190,177 | 149,838 | 172,973 | 0 | - | - | - | - | - | - | - |
Provision for doubtful accounts | |||||||||||||||
10,140 | - | - | - | 0 | - | - | - | - | - | - | - | - | - | - | - |
Changes in assets and liabilities: | |||||||||||||||
Accounts receivable | |||||||||||||||
198,502 | 99,842 | 64,246 | -31,783 | 58,646 | 4,396 | 0 | 0 | 0 | - | - | - | - | - | - | - |
Inventories | |||||||||||||||
43,592 | 207,709 | 652,751 | 510,859 | 521,449 | 32,978 | -21,125 | -29,981 | 45,203 | 34,525 | 69,206 | 27,461 | 0 | 0 | 0 | 0 |
Prepaid expenses and other current assets | |||||||||||||||
94,299 | 165,789 | -100,887 | -140,937 | 212,119 | 96,209 | -37,922 | -1,600 | 7,295 | -33,822 | 37,191 | -20,694 | 472 | 29,811 | 0 | 0 |
Accounts payable | |||||||||||||||
42,749 | -334,405 | 324,979 | -233,886 | 417,364 | 156,433 | 29,299 | 28,374 | -17,356 | -28,770 | -38,290 | 67,970 | 23,190 | -9,917 | 19,658 | 2,324 |
Operating lease liability | |||||||||||||||
-30,797 | -28,816 | -13,142 | -15,773 | -5,120 | 0 | 0 | 0 | 0 | - | - | - | - | - | - | - |
Customer deposits | |||||||||||||||
-149,141 | - | - | - | 0 | - | - | - | - | - | - | - | - | - | - | - |
Accrued liabilities and other | |||||||||||||||
35,460 | 35,677 | 17,253 | 17,439 | 41,977 | 3,547 | 22,350 | 5,626 | -23,384 | 36,399 | 22,715 | -22,595 | 20,895 | 2,900 | 0 | 0 |
Deferred compensation | |||||||||||||||
- | - | - | - | - | - | - | - | - | 0 | 0 | 0 | 26,000 | 21,000 | 21,000 | 28,000 |
Deferred revenue | |||||||||||||||
-200 | 396 | -1,069 | 955 | 2,402 | 0 | 0 | 0 | 0 | - | - | - | - | - | - | - |
Net cash used in operating activities | |||||||||||||||
-2,238,303 | -2,679,650 | -2,080,310 | -2,136,700 | -1,588,977 | -1,061,255 | -570,123 | -534,403 | -526,355 | -300,940 | -271,435 | -129,987 | -131,347 | -120,446 | -27,192 | -30,252 |
Cash Flows From Investing Activities: | |||||||||||||||
Capital expenditures for property and equipment | |||||||||||||||
19,569 | 58,869 | 89,257 | 69,418 | 39,198 | 6,210 | 0 | 1,543 | 6,472 | 1,508 | 1 | 29,498 | 4,096 | 4,290 | 0 | 5,248 |
Investment in patents and trademarks | |||||||||||||||
34,494 | - | - | - | 34,437 | - | - | - | - | - | - | - | - | - | - | - |
Investment in patents and trademarks | |||||||||||||||
- | - | - | - | - | - | 48,226 | 0 | 0 | - | - | - | - | - | - | - |
Long-term deposits | |||||||||||||||
0 | 0 | 0 | 8,364 | 2,805 | 0 | 0 | 0 | 0 | - | - | - | - | - | - | - |
Net cash used in investing activities | |||||||||||||||
-54,063 | -77,607 | -116,292 | -111,846 | -76,440 | -78,054 | -48,226 | -1,543 | -6,472 | -1,508 | -1 | -29,498 | -4,096 | -4,290 | 0 | -5,248 |
Cash Flows From Financing Activities: | |||||||||||||||
Sale of common stock and warrants | |||||||||||||||
- | - | - | - | - | - | - | - | - | 3,492,800 | 50,000 | 0 | 225,000 | 362,500 | 40,000 | 40,000 |
Proceeds from exercise of warrants | |||||||||||||||
632,349 | 479,832 | 75,000 | 1,557,285 | 0 | - | - | - | - | - | - | - | - | - | - | - |
Proceeds from exercise of stock options | |||||||||||||||
168,937 | 28,125 | 5,625 | 24,375 | 0 | - | - | - | - | - | - | - | - | - | - | - |
Net cash provided by financing activities | |||||||||||||||
801,286 | 479,291 | 80,625 | 12,932,874 | 0 | - | - | - | - | 3,362,716 | 110,000 | 0 | 225,000 | 362,500 | 40,000 | 40,000 |
Net decrease in cash and cash equivalents | |||||||||||||||
-1,491,080 | -2,277,966 | -2,115,977 | 10,684,328 | -1,665,417 | 10,993,401 | -649,708 | -535,946 | -532,827 | 3,060,268 | -161,436 | -159,485 | 89,557 | 237,764 | 12,808 | 4,500 |
Right-of-use assets and liabilites recorded during period | |||||||||||||||
0 | - | - | - | 87,588 | - | - | - | - | - | - | - | - | - | - | - |
Right-of-use assets and liabilites recorded during period | |||||||||||||||
- | - | - | - | - | - | 0 | 0 | 0 | - | - | - | - | - | - | - |
Prepaid insurance financed with note payable | |||||||||||||||
- | - | - | - | - | - | - | - | - | - | 0 | 0 | 0 | - | - | - |