CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $)	9 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net loss	$ (5,375,917)us-gaap_NetIncomeLoss	$ (4,207,604)us-gaap_NetIncomeLoss
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	207,011	267,369
Loss (gain) loss on disposal of equipment	161us-gaap_GainLossOnDispositionOfAssets	(5,000)us-gaap_GainLossOnDispositionOfAssets
Amortization of premium on marketable securities	311	7,562
Share-based compensation expense	1,077,928us-gaap_ShareBasedCompensation	1,210,201us-gaap_ShareBasedCompensation
Long term incentive plans	131,907	0
Deferred income tax expense	5,129us-gaap_DeferredIncomeTaxExpenseBenefit	3,245us-gaap_DeferredIncomeTaxExpenseBenefit
Deferred rent	23,556	(27,790)
Changes in operating assets and liabilities:
Accounts receivable, net	220,002	79,428
Inventories	73,626us-gaap_IncreaseDecreaseInInventories	255,207us-gaap_IncreaseDecreaseInInventories
Other current assets	48,142	16,868
Accounts payable	295,113	21,724
Accrued compensation	212,259	274,139
Accrued liabilities	(59,459)	(120,881)
Accrued pension liability	(56,226)	(39,011)
Net cash used in operating activities	(3,196,457)	(2,264,543)
Cash flows from investing activities:
Proceeds from maturity of available-for-sale investments	3,450,000	2,750,000
Proceeds from maturity of held-to-maturity investments	0	4,180,000
Purchases of property, plant and equipment	(206,498)	(221,769)
Proceeds from sale of property, plant and equipment	3,104	6,773
Payments for intangible assets	0	(41,300)
Net cash provided by investing activities	3,246,606	6,673,704
Cash flows from financing activities:
Proceeds from exercise of stock options	67,850	172,485
Net cash provided by financing activities	67,850	172,485
Effect of exchange rate changes on cash and cash equivalents	(95,819)	48,741
Net increase in cash and cash equivalents	22,180	4,630,387
Cash and cash equivalents at beginning of period	8,681,609	3,533,864
Cash and cash equivalents at end of period	8,703,789	8,164,251
Cash paid during the period for income taxes	$ 56,144us-gaap_IncomeTaxesPaid	$ 34,640us-gaap_IncomeTaxesPaid

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (j)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

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