| Dec'19 | Dec'18 | Dec'17 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 | Dec'12 | Dec'11 | Dec'10 | Dec'09 |
|---|---|---|---|---|---|---|---|---|---|---|---|
Cash flows from operating activities: | |||||||||||
Net income (loss) | |||||||||||
638,202 | 3,705,967 | -1,717,702 | -1,717,702 | -453,617 | 450,619 | 1,002,768 | 966,455 | -1,522,028 | -45,735 | 710,189 | 562,415 |
Adjustments to reconcile net income (loss) to cash used in operating activities: | |||||||||||
Depreciation and amortization | |||||||||||
525,783 | 568,164 | - | 566,787 | - | - | - | - | - | - | - | - |
Depreciation and amortization | |||||||||||
- | - | 566,787 | - | 550,761 | 545,673 | 576,745 | 615,348 | 723,092 | 751,411 | 748,859 | 724,308 |
Share-based compensation | |||||||||||
133,671 | 220,654 | 287,231 | 287,231 | 193,117 | 283,507 | 348,649 | 248,535 | 242,793 | 210,125 | 163,431 | 10,320 |
Write off of construction in progress | |||||||||||
- | - | - | - | - | - | - | - | 12,720 | 0 | 0 | - |
Loss on sale of property and equipment | |||||||||||
- | - | - | - | - | - | - | - | - | - | - | 535 |
Deferred taxes | |||||||||||
-38,874 | -2,851,919 | -211,317 | 211,317 | -673,785 | 176,063 | 175,437 | 311,071 | -1,306,156 | -380,538 | 222,417 | -479,541 |
Gain on sale of property and equipment | |||||||||||
6,946 | 13,645 | 0 | - | -40,000 | 0 | 0 | - | - | - | - | - |
Excess tax benefit from stock options exercised | |||||||||||
- | - | 0 | - | -2,815 | -26,347 | -25,716 | - | - | - | - | - |
Excess tax benefit from stock options exercised | |||||||||||
- | - | - | - | - | - | - | - | 0 | -126,049 | -23,149 | 0 |
Changes in: | |||||||||||
Excess tax benefit from stock options exercised | |||||||||||
- | - | - | - | - | - | - | -117,401 | - | - | - | - |
Provision for bad debt | |||||||||||
- | - | - | - | - | - | - | - | - | 18,011 | 17,205 | - |
Excess tax benefit from stock options exercised | |||||||||||
- | - | - | - | - | - | - | - | - | - | - | 0 |
Provision for bad debt | |||||||||||
- | - | - | - | - | - | - | - | - | - | - | 24,781 |
Accounts receivable-trade | |||||||||||
1,033,854 | 109,718 | -983,767 | -983,767 | 1,612,873 | 16,712 | -688,734 | -24,308 | 236,811 | 791,991 | -1,353,032 | -472,228 |
Inventories | |||||||||||
-93,109 | 1,083,420 | -138,552 | 138,552 | 661,483 | -103,490 | -345,255 | 273,616 | 681,302 | -1,614,859 | 548,452 | -382,510 |
Prepaid expenses and other current assets | |||||||||||
-8,552 | 55,252 | -12,643 | 12,643 | 16,318 | 62,022 | 8,943 | -35,003 | 11,721 | -75,865 | -9,818 | -807 |
Accounts payable | |||||||||||
-243,846 | 733,878 | 283,903 | 283,903 | -960,082 | 270,146 | 260,509 | -87,404 | -284,684 | 651,433 | 312,188 | 211,442 |
Accrued expenses | |||||||||||
-160,149 | 319,826 | 31,530 | 31,530 | -307,957 | -117,700 | -31,481 | 286,171 | 278,012 | -98,179 | 263,150 | -36,449 |
Deferred revenue | |||||||||||
21,110 | -100,000 | 100,000 | - | 0 | 0 | - | - | - | - | - | - |
Deferred revenue | |||||||||||
- | - | - | 100,000 | - | - | - | - | - | - | - | - |
Net cash used in operating activities | |||||||||||
-1,261,898 | -373,561 | -1,794,530 | -1,794,530 | 596,296 | 1,557,205 | 1,281,865 | 2,437,080 | - | - | - | 162,266 |
Net cash provided (used) by operating activities | |||||||||||
- | - | - | - | - | - | - | - | -926,417 | 81,746 | 1,599,892 | - |
Cash flows from investing activities: | |||||||||||
Purchases of property and equipment | |||||||||||
489,475 | 350,852 | 273,658 | 273,658 | 645,835 | 476,683 | 501,501 | 666,915 | 209,987 | 635,255 | 640,056 | 293,521 |
Proceeds from sale of property and equipment | |||||||||||
6,946 | 13,645 | 0 | - | 40,000 | 0 | 0 | - | - | - | - | 100 |
Net cash used in investing activities | |||||||||||
-482,529 | -337,207 | -273,658 | -273,658 | -605,835 | -476,683 | -501,501 | -666,915 | -209,987 | -635,255 | -640,056 | -293,421 |
Cash flows from financing activities: | |||||||||||
Payment of capital lease obligations | |||||||||||
- | - | - | - | - | - | -76,372 | 123,366 | 208,504 | 259,386 | 288,723 | 348,447 |
Excess tax benefit from stock options exercised | |||||||||||
- | - | 0 | - | 2,815 | 26,347 | 25,716 | 117,401 | 0 | 126,049 | - | - |
Excess tax benefit from stock options exercised | |||||||||||
- | - | - | - | - | - | - | - | - | - | 23,149 | - |
Net borrowings on line of credit | |||||||||||
1,249,588 | - | - | - | - | - | - | -500,000 | 500,000 | 0 | 0 | - |
Proceeds from issuance of common stock | |||||||||||
- | - | 0 | - | 11,835 | 172,670 | 111,726 | 93,360 | 9,333 | 99,533 | 35,360 | 0 |
Repurchase of common stock | |||||||||||
- | - | 0 | - | 10,000 | 172,470 | 106,908 | 93,360 | 0 | 73,480 | 0 | 0 |
Proceeds from capital lease financing | |||||||||||
- | - | - | - | - | - | - | - | - | - | - | 394,783 |
Net cash provided by financing activities | |||||||||||
1,249,588 | - | 0 | - | 4,650 | 26,547 | -45,838 | -505,965 | 300,829 | -107,284 | -230,214 | 46,336 |
Net decrease in cash and cash equivalents | |||||||||||
-494,839 | -710,768 | -2,068,188 | -2,068,188 | -4,889 | 1,107,069 | 734,526 | 1,264,200 | -835,575 | -660,793 | 729,622 | -84,819 |
Supplemental disclosures of cash flows information: | |||||||||||
Acquisition of production equipment under capital leases | |||||||||||
- | - | - | - | - | - | - | - | - | 238,900 | 185,270 | 69,163 |
Income taxes paid (refunded), net | |||||||||||
-67,311 | 436 | 436 | 436 | 436 | 12,005 | 34,706 | 0 | 0 | 11,900 | 0 | 181,495 |
Cash paid for interest | |||||||||||
44,113 | 34,791 | - | - | - | - | 3,554 | - | - | - | - | - |
Supplemental disclosures of non-cash activity: | |||||||||||
Interest paid | |||||||||||
- | - | - | - | - | - | - | 30,327 | 28,588 | 32,672 | 32,427 | 38,409 |