Statements Of Comprehensive Income - USD ($)
$ in Thousands |
3 Months Ended |
9 Months Ended |
Sep. 30, 2017 |
Sep. 30, 2016 |
Sep. 30, 2017 |
Sep. 30, 2016 |
| Statements Of Comprehensive Income [Abstract] |
|
|
|
|
| Net sales |
$ 2,054
|
$ 1,837
|
$ 6,005
|
$ 5,562
|
| Cost of goods sold |
920
|
835
|
2,648
|
2,452
|
| Gross profit |
1,134
|
1,002
|
3,357
|
3,110
|
| Operating expenses |
|
|
|
|
| Selling and marketing |
342
|
387
|
1,127
|
1,262
|
| General and administrative |
402
|
386
|
1,225
|
1,199
|
| Research and development |
168
|
200
|
590
|
561
|
| Total operating expenses |
912
|
973
|
2,942
|
3,022
|
| Operating income |
222
|
29
|
415
|
88
|
| Non-operating income (expense) |
|
|
|
|
| Interest expense |
0
|
0
|
0
|
(1)
|
| Interest income |
9
|
3
|
22
|
18
|
| Other income |
3
|
3
|
8
|
12
|
| Total non-operating income, net |
12
|
6
|
30
|
29
|
| Income before income taxes |
234
|
35
|
445
|
117
|
| Provision for income taxes |
82
|
12
|
154
|
43
|
| Net income |
152
|
23
|
291
|
74
|
| Other comprehensive income |
|
|
|
|
| Change in unrealized value of available-for-sale securities, net of income tax |
6
|
2
|
10
|
6
|
| Other comprehensive income |
6
|
2
|
10
|
6
|
| Net comprehensive income |
$ 158
|
$ 25
|
$ 301
|
$ 80
|
| Basic |
|
|
|
|
| Net income per share |
$ 0.04
|
$ 0.01
|
$ 0.09
|
$ 0.02
|
| Weighted average shares |
3,395,521
|
3,395,521
|
3,395,521
|
3,395,521
|
| Diluted |
|
|
|
|
| Net income per share |
$ 0.04
|
$ 0.01
|
$ 0.09
|
$ 0.02
|
| Weighted average shares |
3,400,988
|
3,396,776
|
3,396,899
|
3,396,102
|