Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 293,000	$ 95,000
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	918,000	971,000
Amortization of debt issue costs and other assets	54,000	34,000
Amortization of operating leases right-of-use assets	156,000	144,000
Share-based compensation expense	178,000	361,000
Net (increase) decrease in assets:
Accounts receivable	71,000	327,000
Inventories	(421,000)	145,000
Prepaid expenses and other assets	73,000	51,000
Net increase (decrease) in liabilities:
Accounts payable	(8,000)	(2,084,000)
Accrued expenses	129,000	(158,000)
Customer deposits	(129,000)	(322,000)
Operating lease obligations	(156,000)	(144,000)
Deferred rent and other liabilities	(17,000)	1,000
Net cash provided by (used in) operating activities	1,141,000	(579,000)
CASH FLOWS FROM INVESTING ACTIVITIES:
Investment in equipment and leasehold improvements	(295,000)	(86,000)
Net cash used in investing activities	(295,000)	(86,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments on short-term contract obligation	(38,000)	(231,000)
Proceeds from long-term debt – related party		1,500,000
Proceeds from long-term debt – PPP loan	1,381,000
Principal payments on long-term debt	(330,000)	(297,000)
Payments on finance leases	(17,000)	(32,000)
Taxes paid related to net share settlement of restricted stock units	(6,000)	(25,000)
Proceeds from exercise of stock options		4,000
Net cash provided by financing activities	990,000	919,000
Net increase in cash	1,836,000	254,000
Cash at beginning of period	2,417,000	840,000
Cash at end of period	4,253,000	1,094,000
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Interest	235,000	337,000
Income taxes	$ 14,000