General form of registration statement for all companies including face-amount certificate companies

3. Summary of Significant Accounting Policies (Details Narrative)

v3.10.0.1
3. Summary of Significant Accounting Policies (Details Narrative) - USD ($)
3 Months Ended 12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Mar. 31, 2018
Mar. 31, 2017
Allowance for doubtful accounts $ 30,000   $ 17,000 $ 14,000
Allowance for sales discounts, rebates, distributor fees and returns     1,275,000 672,000
Inventory reserves 111,000   111,000 61,000
Transfers in or out of Level 3     0 0
Asset impairment charges     0 0
Research and development expenses 350,000 $ 382,000 1,575,000 1,576,000
Advertising costs     177,000 149,000
Revenues 4,369,000 3,835,000 16,658,000 12,825,000
Foreign currency translation adjustment (502,000) $ 200,000 203,000 (324,000)
Foreign currency transaction loss     208,000 208,000
Foreign currency transaction gain     107,000 36,000
Accumulated other comprehensive loss $ (4,477,000)   (3,975,000) (4,178,000)
Shipping and Handling [Member]        
Revenues     $ 46,000 $ 49,000
Accounts Receivable [Member] | One Customer [Member]        
Significant customer concentration     36.00% 26.00%
Accounts Receivable [Member] | One Customer [Member]        
Significant customer concentration     18.00% 12.00%
Accounts Receivable [Member] | CustomerCMember        
Significant customer concentration       10.00%
Revenues [Member] | One Customer [Member]        
Significant customer concentration     22.00% 12.00%
Revenues [Member] | One Customer [Member]        
Significant customer concentration     19.00% 10.00%
Revenues [Member] | One Customer [Member]        
Significant customer concentration     13.00% 10.00%
Revenues [Member] | One Customer [Member]        
Significant customer concentration     12.00%