CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $)	3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities:
Net loss	$ (2,190,332)	$ (1,609,292)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	72,584	87,013
Loss (gain) loss on disposal of equipment	1,249	(5,881)
Amortization of premium on marketable securities	343	3,342
Share-based compensation expense	323,304	16,044
Deferred income tax expense	2,205	2,178
Deferred rent	22,744	(9,263)
Changes in operating assets and liabilities:
Accounts receivable, net	263,078	60,458
Inventories	(92,649)	39,773
Other current assets	(30,323)	23,110
Accounts payable	49,797	264,500
Accrued compensation	94,249	19,415
Accrued liabilities	(65,795)	383,436
Accrued pension liability	44,081	40,073
Net cash used in operating activities	(1,505,465)	(685,094)
Cash flows from investing activities:
Proceeds from maturity of available-for-sale investments	3,050,000	1,000,000
Proceeds from maturity of held-to-maturity investments	0	820,000
Purchases of property, plant and equipment	(52,739)	(189,789)
Proceeds from sale of property, plant and equipment	0	6,080
Net cash provided by investing activities	2,997,261	1,636,291
Cash flows from financing activities:
Proceeds from exercise of options	48,600	0
Net cash provided by financing activities	48,600	0
Effect of exchange rate changes on cash and cash equivalents	(315)	9,312
Net increase in cash and cash equivalents	1,540,081	960,509
Cash and cash equivalents at beginning of period	8,681,609	3,533,864
Cash and cash equivalents at end of period	10,221,690	4,494,373
Cash paid during the period for income taxes	$ 38,700	$ 17,770