4. Condensed Consolidated Balance Sheets (Details) - USD ($) |
Dec. 31, 2018 |
Mar. 31, 2018 |
|---|---|---|
| Inventories Details | ||
| Raw materials, net | $ 1,819,000 | $ 1,619,000 |
| Finished goods, net | 1,396,000 | 1,246,000 |
| Inventories, net | $ 3,215,000 | $ 2,865,000 |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|