Condensed Balance Sheets - USD ($)
$ in Thousands |
Jun. 30, 2020 |
Dec. 31, 2019 |
| Current assets |
|
|
| Cash and cash equivalents |
$ 2,262
|
$ 8,785
|
| Investments |
6,790
|
45
|
| Trade receivables, less allowance for doubtful accounts of $11 |
1,054
|
1,036
|
| Inventories |
1,735
|
1,695
|
| Other current assets |
163
|
159
|
| Income tax receivable |
11
|
0
|
| Total current assets |
12,015
|
11,720
|
| Deferred income tax asset, net |
221
|
203
|
| Intangible assets, net |
359
|
489
|
| Property and equipment, net |
1,024
|
1,063
|
| Total assets |
13,619
|
13,475
|
| Current liabilities |
|
|
| Current maturities of financing lease |
6
|
5
|
| Accounts payable |
144
|
129
|
| Accrued expenses |
632
|
431
|
| Total current liabilities |
782
|
565
|
| Long-term liabilities |
|
|
| Financing lease, net of current maturities |
15
|
19
|
| Total long-term liabilities |
15
|
19
|
| Commitments and contingencies |
|
|
| Stockholders' equity |
|
|
| Common stock par value $0.10 per share; authorized 10,000,000 shares; 3,395,521 shares issued and outstanding |
339
|
339
|
| Additional paid-in capital |
2,034
|
2,030
|
| Retained earnings |
10,449
|
10,522
|
| Total stockholders' equity |
12,822
|
12,891
|
| Total liabilities and stockholders' equity |
$ 13,619
|
$ 13,475
|