Condensed Consolidated Statements of Cash Flows - USD ($)	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income	$ 110,980	$ 257,776
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Deferred income taxes	61,890	0
Depreciation and amortization	29,540	19,075
Amortization of right of use assets	52,450	0
Provision for inventory obsolescence	10,000	10,000
Change in fair value of common stock warrant	0	78,500
Non-cash stock-based compensation	5,276	5,841
Changes in assets and liabilities:
(Increase) decrease in accounts receivable	(397,653)	620,127
Increase in inventories	(401,204)	(175,342)
Decrease in prepaid expenses & other assets	93,873	1,286
Decrease in accounts payable and accrued liabilities	(90,872)	(572,448)
(Decrease) increase in accrued payroll, vacation pay and payroll taxes	(72,689)	26,957
(Decrease) increase in deferred revenues	(70,827)	115,489
(Decrease) increase in operating lease liabilities	(52,450)	0
Increase in accrued legal damages	75,144	83,450
Net cash (used in) provided by operating activities	(646,542)	470,711
Cash flows from investing activities:
Purchases of equipment	(15,386)	(23,507)
Net cash used in investing activities	(15,386)	(23,507)
Cash flows from financing activities:
Proceeds from SBA PPP loan	722,577	0
Repayment of line of credit	0	(50,000)
Repayment of finance lease obligations	(49)	(602)
Net cash provided by (used in) financing activities	722,528	(50,602)
Net increase in cash and restricted cash	60,600	396,602
	5,134,739	2,590,727
Supplemental cash flow information:
Taxes paid	0	0
Interest paid	4,962	20,747
	5,195,339	2,987,329
Beginning of period
Cash	3,126,195	585,856
Restricted cash	2,008,544	2,004,871
End of period
Cash	3,185,796	981,806
Restricted cash	$ 2,009,543	$ 2,005,523