Annual report pursuant to Section 13 and 15(d)

Note 19 - Series B, C, D Convertible Voting Perpetual Preferred Stock and Warrants - Preferred Stock Information (Details)

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Note 19 - Series B, C, D Convertible Voting Perpetual Preferred Stock and Warrants - Preferred Stock Information (Details) - USD ($)
$ in Thousands
Mar. 25, 2017
Mar. 26, 2016
Jul. 08, 2013
Feb. 19, 2013
Nov. 10, 2011
Designated shares (in shares) 1,000,000 1,000,000      
Series B Preferred Stock [Member]          
Shares outstanding (in shares) 9,997        
Liquidation preference $ 2,309        
Designated shares (in shares) 10,000        
Preferred Stock, Shares Issued 9,997       9,997
Series C Preferred Stock [Member]          
Shares outstanding (in shares) 3,424.65        
Liquidation preference $ 500        
Designated shares (in shares) 3,500        
Preferred Stock, Shares Issued 3,424.65     3,424.65  
Series D Preferred Stock [Member]          
Shares outstanding (in shares) 5,111.86        
Liquidation preference $ 731        
Designated shares (in shares) 6,000        
Preferred Stock, Shares Issued 5,111.86   5,111.86    
Series B, C, and D Preferred Stock [Member]          
Shares outstanding (in shares) 18,533.51 18,533.51      
Liquidation preference $ 3,540 $ 3,540      
Designated shares (in shares) 19,500 19,500      
Preferred Stock, Shares Issued 18,533.51 18,533.51