CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)	9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Net income	$ 823,877	$ 705,118
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes	317,509	612,816
Depreciation and amortization	95,209	122,399
Provision for bad debts	0	1,205
Provision for inventory obsolescence	20,000	35,713
Amortization of deferred financing costs	4,072	4,072
Change in fair value of common stock warrant	(288,203)	697,579
Non-cash stock-based compensation	24,536	23,546
Changes in assets and liabilities:
Decrease in accounts receivable	396,430	596,529
Decrease (increase) in inventories	185,145	(812,003)
(Increase) decrease in prepaid expenses & other assets	(28,774)	28,393
Decrease in accounts payable and other accrued expenses	(299,359)	(1,238,440)
Decrease in federal and state taxes	(53,623)	0
(Decrease) increase in accrued payroll, vacation pay & withholdings	(224,072)	215,019
Increase in deferred revenues	338,792	5,401
Decrease in other long-term liabilities	(7,800)	(18,900)
Net cash generated by operating activities	1,303,739	978,447
Cash flows from investing activities:
Purchases of equipment	(37,070)	(45,041)
Net cash used in investing activities	(37,070)	(45,041)
Cash flows from financing activities:
Proceeds from bank loan	0	18,000
Payment of warrant liability	(720,000)	0
Repayment of long-term debt	(322,894)	(290,937)
Repayment of subordinated notes - related parties	(25,000)	(205,000)
Repayment of capitalized lease obligations	(9,254)	(12,348)
Net cash used in financing activities	(1,077,148)	(490,285)
Net (decrease) increase in cash and cash equivalents	189,521	443,121
Cash and cash equivalents at beginning of period	972,633	185,932
Cash and cash equivalents at end of period	1,162,154	629,053
Supplemental cash flow information:
Taxes paid	87,374	0
Interest paid	$ 107,768	$ 47,793