Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities:
Net income (loss)	$ (67,828)	$ (159,825)
Adjustments to reconcile net (loss) to net cash (used in) operating activities:
Depreciation and amortization	58,023	53,719
Write-off of inventories	21,979	19,888
Stock Based Compensation	0	8,802
Deferred taxes	(150,000)	11,000
Non-cash interest expense	15,589	17,309
Forgiveness of Paycheck Protection Program loan	(361,275)	0
Bad debt write off	200,000	0
Warrant liability	287,844	0
Changes in operating assets and liabilities balances:
Accounts receivable	(48,443)	(158,079)
Inventories	(91,033)	(101,570)
Prepaid expenses and other current assets	(13,954)	(20,236)
Accounts payable	(50,942)	1,806
Customer deposits	(47,406)	21,102
Accrued expenses and other current liabilities	(1,056)	16,352
Payments of operating lease liability	(50,938)	(50,938)
Net cash (used in) operating activities	(299,440)	(340,670)
Cash flows provided (used) in financing activities:
Due to stockholder	(10,351)	(28,740)
Proceeds from line of credit	132,000	25,000
Repayments of line of credit	(104,671)	0
Proceeds from PPP Loan	0	381,000
Repayments on financing lease payable	0	(16,093)
Net cash provided by (used in) financing activities	16,978	361,167
Net (decrease) increase in cash and cash equivalents	(282,462)	20,497
Cash and cash equivalents - beginning of period	1,546,950	1,438,714
Cash and cash equivalents - end of period	1,264,488	1,459,211
Cash paid for:
Interest	$ 4,840	$ 2,537