Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (105)	$ (381)
Adjustments to reconcile net loss to net cash used in operating activities:
Loss on disposal of equipment and leasehold improvements		10
Depreciation and amortization	$ 313	303
Amortization of debt issue costs and other assets	12	12
Share based compensation expense	$ 163	192
Reduction of inventory reserve		(1)
Deferred income tax benefit	$ (134)	(716)
Net (increase) decrease in assets:
Accounts receivable	(290)	113
Inventories	(161)	130
Prepaid expenses	(84)	$ (50)
Other assets	(94)
Net increase (decrease) in liabilities:
Customer deposits	52	$ 33
Accounts payable	164	132
Accrued expenses	(69)	5
Net cash used in operating activities	(233)	(218)
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from restricted cash	158	253
Investment in equipment and leasehold improvements	(1,092)	(903)
Net cash used in investing activities	(934)	$ (650)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from short term note payable	500
Principal payments on long-term debt	(57)	$ (51)
Net cash provided by (used in) financing activities	443	(51)
Net decrease in cash and cash equivalents	(724)	(919)
Cash and cash equivalents at beginning of period	2,226	4,312
Cash and cash equivalents at end of period	1,502	3,393
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Interest	83	75
Income taxes	$ 21	$ 5