Quarterly report pursuant to Section 13 or 15(d)

Liquidity (Details)

v3.5.0.2
Liquidity (Details) - USD ($)
Sep. 28, 2016
Sep. 30, 2016
Mar. 31, 2016
Sep. 30, 2015
Mar. 31, 2015
Liquidity [Line Items]          
Cash   $ 9,416,000 $ 11,231,000 $ 4,582,000 $ 7,069,000
Repayments of debt $ 11,000,000        
Silicon Valley Bank          
Liquidity [Line Items]          
Repayments of debt 3,000,000        
North Atlantic Capital          
Liquidity [Line Items]          
Repayments of debt 8,000,000        
Convertible notes          
Liquidity [Line Items]          
Debt face amount $ 16,000,000 $ 16,000,000      
Interest rate 8.75%        
Proceeds from debt $ 14,316,000