Quarterly report pursuant to Section 13 or 15(d)

Variable Interest Entity and Guarantee (Details Textual)

v3.8.0.1
Variable Interest Entity and Guarantee (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Mar. 31, 2017
Apr. 02, 2013
Concentration Risk [Line Items]            
Total revenue $ 17,232 $ 17,780 $ 33,806 $ 32,596    
AKA [Member]            
Concentration Risk [Line Items]            
Equity Method Investments 56   56   $ 111  
Dividend Income, Operating 59          
Total revenue 900 $ 600 1,700 $ 1,700    
Accounts Receivable, Net, Current 200   200   500  
Deferred Revenue 1,700   1,700   $ 2,800  
Guarantor Obligations, Maximum Exposure, Undiscounted $ 700   $ 700      
AKA [Member]            
Concentration Risk [Line Items]            
Equity Method Investment, Ownership Percentage           50.00%