Business Segment Information (Details) (USD $)	3 Months Ended
	Jun. 30, 2014 Customer Segment		Jun. 30, 2013 Customer		Mar. 31, 2014
Business Segment Information [Abstract]
Number of operating segments	1
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue by customer (in hundredths)
Revenues	$ 6,385,000		$ 5,841,000
Long-lived assets	980,000				998,000
Number of major customers	0		0
Percentage of sales considered for major customer (in hundredths)	0.00%		0.00%
United States [Member] | Reportable Geographical Components [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	4,533,000		4,285,000
Long-lived assets	363,000				379,000
United Kingdom [Member] | Reportable Geographical Components [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	697,000		0
All Other Foreign Countries [Member] | Reportable Geographical Components [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	1,155,000	[1]	1,556,000	[1]
Long-lived assets	$ 617,000	[2]			$ 619,000	[2]

[1] No country accounts for 10% or more of the consolidated net sales.

[2] Substantially all maintained in The Netherlands.