Annual report pursuant to Section 13 and 15(d)

Description of Business and Summary of Significant Accounting Policies (Details)

v2.4.0.8
Description of Business and Summary of Significant Accounting Policies (Details) (USD $)
0 Months Ended 3 Months Ended 12 Months Ended
Jul. 12, 2012
Sep. 30, 2013
Patent
Mar. 31, 2014
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2014
Minimum [Member]
Mar. 31, 2014
Minimum [Member]
Patents [Member]
Mar. 31, 2014
Minimum [Member]
Trademarks [Member]
Mar. 31, 2014
Maximum [Member]
Mar. 31, 2014
Maximum [Member]
Patents [Member]
Mar. 31, 2014
Maximum [Member]
Trademarks [Member]
Mar. 31, 2014
Furniture and Machinery and Equipment [Member]
Mar. 31, 2014
Computer and Software [Member]
Minimum [Member]
Mar. 31, 2014
Computer and Software [Member]
Maximum [Member]
Mar. 31, 2014
Leaseholds Improvements [Member]
Mar. 31, 2014
Accounts Receivable [Member]
Customer Concentration Risk [Member]
Customer
Mar. 31, 2013
Accounts Receivable [Member]
Customer Concentration Risk [Member]
Customer
Mar. 31, 2014
Restricted Stock Units (RSUs) [Member]
Mar. 31, 2013
Restricted Stock Units (RSUs) [Member]
Mar. 31, 2013
Sequel Power [Member]
Mar. 31, 2012
Sequel Power [Member]
Jan. 14, 2011
Sequel Power [Member]
Schedule of Equity Method Investments [Line Items]                                            
Equity investment                                           $ 2,000,000
Ownership interest (in hundredths)                                           25.00%
Warrants cancelled (in shares)                                       44,578 48,310  
Business Acquisition [Line Items]                                            
Business acquisition effective date Jul. 12, 2012   Jul. 12, 2012                                      
Date of acquisition agreement Jun. 29, 2012   Jun. 29, 2012                                      
Percentage of interest acquired (in hundredth) 100.00%                                          
Number of shares issuable to acquire business (in shares) 236,433                                          
Shares issued specified as percentage of total shares outstanding (in hundredths) 14.00%                                          
Common stock consideration 932,000                                          
Promissory note assumed 500,000                                          
Interest rate on promissory note (in hundredths) 0.28%                                          
Bridge loan included as part of purchase price 300,000                                          
RSUs and options granted as "inducement grants" to newly hired management (in shares)     368,417 368,417                                    
Vesting period of equity awards     4 years 4 years                                    
Aggregate RSUs forfeited (in shares)                                   215,475 215,475      
Noncompetition period     3 years 3 years                                    
Stockholders Agreement Period of transfer restrictions and voting provisions     2 years 2 years                                    
Change in the fair value of warrants [Abstract]                                            
Balance as of the beginning of the period     10,000 19,000                                    
Change in fair value recorded in earnings, including expirations     (10,000) (9,000)                                    
Balance as of the end of the period     0 10,000 19,000                                  
Cash equivalents     1,430,000                                      
Investment in Unconsolidated Affiliate [Abstract]                                            
Estimated useful life of the underlying intangibles     10 years       3 years 3 years   10 years 10 years                      
Net difference between investment in unconsolidated affiliates and the underlying equity of unconsolidated affiliates     0                                      
Amortization expense     0                                      
Equity method investment estimated fair value       0 0                                  
Impairment of unconsolidated affiliate         1,377,000                                  
Investment in Convertible Promissory Note [Abstract]                                            
Interest rate on note receivable (in hundredths)     10.00%                                      
Maturity date     Nov. 15, 2014                                      
Convertible promissory note balance     378,000 345,000                                    
Original amount     300,000                                      
Accrued interest on note receivable     78,000 45,000                                    
Concentration Risk [Line Items]                                            
Number of customers                               4 1          
Concentration risk (in hundredths)                               100.00% 100.00%          
Accounts receivable     148,000 250,000                       148,000 250,000          
Number of patent lots sold   2                                        
Amount received on sale of patent   365,000                                        
Property, Plant and Equipment [Line Items]                                            
Useful Life           3 years     7 years     7 years 3 years 5 years 5 years              
Finite-Lived Intangible Assets [Line Items]                                            
Useful life     10 years       3 years 3 years   10 years 10 years                      
Impairment of intangible assets     0 0                                    
Impairment of Long-Lived Assets [Abstract]                                            
Impairment of long-lived assets     0 17,000                                    
Accounts Receivable - Allowance for Sales Returns and Doubtful Accounts [Abstract]                                            
Reserves for potential credit losses     0 0                                    
Accounts receivable     $ 148,000 $ 250,000                       $ 148,000 $ 250,000          
Earnings Per Share [Abstract]                                            
Reverse stock split     1-for-5                                      
Stock-Based Compensation [Abstract]                                            
Vesting period of equity awards     4 years 4 years                                    
Stock options expiry period     10 years                                      
Purchase price of shares to fair market value (in hundredths)     85.00%