CONSOLIDATED BALANCE SHEETS (USD $)	Mar. 31, 2014	Mar. 31, 2013
Current assets:
Cash and cash equivalents	$ 8,681,609	$ 3,533,864
Short-term investments	3,451,086	7,936,605
Accounts receivable, net	2,875,275	2,553,447
Inventories	517,217	718,933
Other	507,299	566,536
Total current assets	16,032,486	15,309,385
Property, plant, and equipment, net	997,609	1,033,085
Intangible assets, net	119,980	100,502
Long-term investments	0	3,451,711
Prepaid pension assets	855	0
Deferred tax assets	150,116	146,052
Total assets	17,301,046	20,040,735
Current liabilities:
Accounts payable	904,879	618,916
Current portion - deferred rent	2,917	35,000
Income tax payable	21,922	7,729
Accrued liabilities:
Compensation	1,999,966	1,550,846
Other	479,373	476,287
Total current liabilities	3,409,057	2,688,778
Deferred rent - less current portion	171	5,141
Accrued pension liability	678,118	660,580
Total liabilities	4,087,346	3,354,499
Commitments and contingencies
Shareholders' equity:
Common stock $.01 par value; 40,000,000 shares authorized, 21,653,835 and 21,005,582 shares issued and outstanding at March 31, 2014 and 2013, respectively.	216,538	210,056
Additional paid-in capital	57,655,628	55,866,338
Accumulated deficit	(44,174,071)	(38,820,981)
Accumulated other comprehensive loss	(484,395)	(569,177)
Total shareholders' equity	13,213,700	16,686,236
Total liabilities and shareholders' equity	$ 17,301,046	$ 20,040,735