Condensed Consolidated Balance Sheets - USD ($)	Dec. 31, 2019	Mar. 31, 2019
Current assets:
Cash and cash equivalents	$ 1,667,364	$ 585,856
Accounts receivable, net	2,812,739	2,196,099
Inventories, net	3,070,529	2,932,632
Restricted cash to support appeal bond	2,007,546	2,004,871
Prepaid expenses and other current assets	362,226	275,230
Total current assets	9,920,404	7,994,688
Equipment and leasehold improvements, net	262,708	236,370
Operating lease right-of-use assets	358,379	0
Deferred tax asset, net	63,500	63,500
Other long-term assets	35,109	35,109
Total assets	10,640,100	8,329,667
Current liabilities:
Line of credit	710,000	800,000
Finance lease obligations – current portion	1,935	6,885
Operating lease liabilities – current portion	211,471	0
Accounts payable and accrued liabilities	1,328,443	1,493,793
Deferred revenues – current portion	200,014	97,122
Accrued legal damages	5,570,846	5,312,085
Warrant liability	0	43,500
Accrued payroll, vacation pay and payroll taxes	487,887	394,296
Total current liabilities	8,510,596	8,147,681
Operating lease liabilities – long-term	146,908	0
Deferred revenues – long-term	347,299	264,669
Total liabilities	9,004,803	8,412,350
Commitments and contingencies
Stockholders’ equity (deficit):
Preferred stock
Common stock, 7,000,000 shares authorized, par value $0.10 per share, 3,255,887 shares issued and outstanding, respectively	325,586	325,586
Paid-in capital in excess of par value, common stock	7,691,348	7,914,955
Accumulated deficit	(10,905,002)	(12,606,589)
Total stockholders’ equity (deficit)	1,635,297	(82,683)
Total liabilities and stockholders’ equity (deficit)	10,640,100	8,329,667
Series A Preferred Stock [Member]
Stockholders’ equity (deficit):
Preferred stock	3,455,998	3,275,998
Series B Preferred Stock [Member]
Stockholders’ equity (deficit):
Preferred stock	$ 1,067,367	$ 1,007,367