Annual report pursuant to Section 13 and 15(d)

Intangible Assets (Details Textual)

v3.7.0.1
Intangible Assets (Details Textual) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2016
Dec. 31, 2016
Mar. 31, 2017
Mar. 31, 2016
Goodwill [Line Items]        
Intangible Assets, Net (Excluding Goodwill)     $ 15,624,000 $ 20,388,000
Finite-Lived Intangible Assets, Net     15,624,000 20,388,000
Intangible amortization     $ 4,764,000 5,554,000
Impairment of Intangible Assets (Excluding Goodwill)       0
Minimum [Member]        
Goodwill [Line Items]        
Finite-Lived Intangible Asset, Useful Life     2 years  
Maximum [Member]        
Goodwill [Line Items]        
Finite-Lived Intangible Asset, Useful Life     10 years  
Product Technology [Member]        
Goodwill [Line Items]        
Finite-Lived Intangible Assets, Net     $ 3,803,000 $ 5,779,000
CNS [Member]        
Goodwill [Line Items]        
Impairment of Intangible Assets, Finite-lived $ 31,000      
CNS [Member] | Customer-Related Intangible Assets [Member]        
Goodwill [Line Items]        
Intangible Assets, Net (Excluding Goodwill) $ 100,000 $ 100,000    
Finite-Lived Intangible Asset, Useful Life   1 year 6 months    
IBW [Member]        
Goodwill [Line Items]        
Impairment of Intangible Assets, Finite-lived     0  
ISMS [Member]        
Goodwill [Line Items]        
Impairment of Intangible Assets, Finite-lived     $ 0