Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net (loss) income	$ (341,000)	$ 147,000
Adjustments to reconcile net loss to net cash provided by operating activities:
(Gain) loss on disposal of equipment and leasehold improvements	(29,000)	126,000
Depreciation and amortization	1,057,000	925,000
Amortization of debt issue costs and other assets	41,000	35,000
Share based compensation expense	569,000	$ 584,000
Provision for doubtful accounts	43,000
Deferred income tax benefit	168,000	$ 157,000
Net (increase) decrease in assets:
Accounts receivable	61,000	(766,000)
Inventories	(1,645,000)	(1,542,000)
Prepaid expenses	(206,000)	$ (5,000)
Other assets	104,000
Net increase (decrease) in liabilities:
Customer deposits	99,000	$ 16,000
Accounts payable	984,000	641,000
Accrued expenses	198,000	269,000
Deferred rent	2,000	(1,000)
Net cash provided by operating activities	1,105,000	586,000
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from restricted cash	486,000	807,000
Investment in equipment and leasehold improvements	(4,033,000)	(3,184,000)
Net cash used in investing activities	(3,547,000)	$ (2,377,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from short term notes payable	500,000
Payment of short term notes payable	(500,000)
Proceeds from long-term debt, net of costs	2,407,000
Capitalized leases	(32,000)
Principal payments on long-term debt	(230,000)	$ (153,000)
Proceeds from stock options exercised	66,000	173,000
Net cash provided by financing activities	2,211,000	20,000
Net decrease in cash and cash equivalents	(231,000)	(1,771,000)
Cash and cash equivalents at beginning of period	2,226,000	4,312,000
Cash and cash equivalents at end of period	1,995,000	2,541,000
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Interest	290,000	$ 221,000
Income taxes	$ 21,000