CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)	9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net income (loss)	$ 705,118	$ (653,144)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Deferred income taxes	612,816	(211,311)
Depreciation and amortization	122,399	134,837
Provision for bad debts	1,205	0
Provision for inventory obsolescence	35,713	5,000
Amortization of debt discount	0	75,308
Amortization of deferred financing costs	4,072	67,808
Loss on extinguishment of debt	0	188,102
Change in fair value of common stock warrant	697,579	68,750
Non-cash stock-based compensation	23,546	29,733
Changes in assets and liabilities:
Decrease in accounts receivable	596,529	1,481,401
Increase in inventories	(812,003)	(548,963)
Decrease (increase) in prepaid expenses & other assets	28,393	(184,716)
(Decrease) increase in accounts payable and other accrued expenses	(1,238,440)	423,290
Increase in accrued payroll, vacation pay & withholdings	215,019	82,990
Decrease in deferred revenues	5,401	43,936
Decrease in progress billings	0	(518,659)
Decrease in other long-term liabilities	(18,900)	(10,500)
Net cash provided by operating activities	978,447	473,862
Cash flows from investing activities:
Purchases of equipment	(45,041)	(8,541)
Net cash used in investing activities	(45,041)	(8,541)
Cash flows from financing activities:
Proceeds from bank loan	18,000	1,200,000
Deferred financing costs	0	(16,287)
Repayment of notes to related parties	(205,000)	0
Repayment of long-term debt	(290,937)	(1,499,392)
Repayment of capitalized lease obligations	(12,348)	(49,769)
Net cash used in financing activities	(490,285)	(365,448)
Net increase in cash and cash equivalents	443,121	99,873
Cash and cash equivalents at beginning of period	185,932	232,118
Cash and cash equivalents at end of period	629,053	331,991
Supplemental cash flow information:
Taxes paid	0	20,500
Interest paid	46,793	141,180
Supplemental non-cash information:
Converted accounts payable to equity	$ 0	$ 26,610