Quarterly report pursuant to Section 13 or 15(d)

Product Warranties (Details Textual)

v2.4.1.9
Product Warranties (Details Textual) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Dec. 31, 2014
Mar. 31, 2014
Product Warranties (Textual) [Abstract]    
Current portions of warranty reserve 549us-gaap_StandardProductWarrantyAccrualCurrent $ 286us-gaap_StandardProductWarrantyAccrualCurrent
Non-current portions of the warranty reserve 146us-gaap_StandardProductWarrantyAccrualNoncurrent $ 42us-gaap_StandardProductWarrantyAccrualNoncurrent
CSG [Member] | Minimum [Member]    
Product Warranties (Textual) [Abstract]    
Standard Product Warranty Description P1Y  
CSG [Member] | Maximum [Member]    
Product Warranties (Textual) [Abstract]    
Standard Product Warranty Description P7Y  
IBW [Member] | Minimum [Member]    
Product Warranties (Textual) [Abstract]    
Standard Product Warranty Description P1Y  
IBW [Member] | Maximum [Member]    
Product Warranties (Textual) [Abstract]    
Standard Product Warranty Description P5Y