Summary of Significant Accounting Policies (Tables)
|
12 Months Ended |
Apr. 30, 2015 |
|---|
| Accounting Policies [Abstract] |
|
| Accounts receivable |
| |
|
April 30,
2015 |
|
|
April 30,
2014 |
|
| Trade receivables |
|
$ |
2,151,000 |
|
|
$ |
3,758,000 |
|
| VAT receivable |
|
|
160,000 |
|
|
|
125,000 |
|
| Allowance for doubtful accounts and sales returns |
|
|
(140,000 |
) |
|
|
(220,000 |
) |
| |
|
$ |
2,171,000 |
|
|
$ |
3,663,000 |
|
|
| Changes in goodwill |
| |
|
2015 |
|
|
2014 |
|
| Opening balance May 1 |
|
$ |
1,083,000 |
|
|
$ |
1,083,000 |
|
| Contingent purchase price |
|
|
— |
|
|
|
— |
|
| Impairment charge |
|
|
— |
|
|
|
— |
|
| Goodwill balance April 30 |
|
$ |
1,083,000 |
|
|
$ |
1,083,000 |
|
|
| The components of finite-lived intangible assets acquired |
| |
|
Gross |
|
|
Weighted |
|
|
|
|
Net |
|
| |
|
Carrying |
|
|
Average |
|
Accumulated |
|
|
Carrying |
|
| |
|
Amount |
|
|
Life |
|
Amortization |
|
|
Amount |
|
| Customer relationships |
|
$ |
758,000 |
|
|
2 Years |
|
$ |
758,000 |
|
|
$ |
0 |
|
| Trade names |
|
|
733,000 |
|
|
5 Years |
|
|
733,000 |
|
|
|
0 |
|
| Non-compete agreement |
|
|
68,000 |
|
|
4 Years |
|
|
68,000 |
|
|
|
0 |
|
| |
|
$ |
1,559,000 |
|
|
|
|
$ |
1,559,000 |
|
|
$ |
0 |
|
|
| The assets and liabilities measured at fair value on a nonrecurring basis, by input level, in the consolidated balance sheet |
| |
|
Quoted |
|
|
|
|
|
|
|
|
|
|
|
Total |
|
| |
|
Prices in |
|
|
|
|
|
|
|
|
|
|
|
Reduction |
|
| |
|
Active Markets for |
|
|
Significant Other |
|
|
Significant |
|
|
|
|
|
in Fair value |
|
| Balance Sheet |
|
Identical Assets or |
|
|
Observable Inputs |
|
|
Unobservable |
|
|
April 30, 2015 |
|
|
Recorded as of |
|
| Location |
|
Liabilities (Level 1) |
|
|
(Level 2) |
|
|
Inputs (Level 3) |
|
|
Total |
|
|
April 30, 2015 |
|
| Assets: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Goodwill |
|
$ |
— |
|
|
$ |
— |
|
|
$ |
1,083,000 |
|
|
$ |
1,083,000 |
|
|
$ |
— |
|
| Convertible notes payable, net of discount |
|
$ |
— |
|
|
$ |
708,000 |
|
|
$ |
— |
|
|
$ |
708,000 |
|
|
$ |
— |
|
| Preferred stock |
|
$ |
— |
|
|
$ |
1,857,000 |
|
|
$ |
— |
|
|
$ |
1,857,000 |
|
|
$ |
— |
|
|
| Reconciliation of the numerator and denominator used in computing basic and diluted net loss per share |
| |
|
Year ended April 30, 2015 |
|
| |
|
Loss |
|
|
Shares |
|
|
Per share |
|
| |
|
(numerator) |
|
|
(denominator) |
|
|
amount |
|
| Basic net loss per share-net loss and weighted average common shares outstanding |
|
$ |
(5,588,000 |
) |
|
|
2,538,511 |
|
|
$ |
(2.20 |
) |
| Effect of dilutive securities-stock options |
|
|
— |
|
|
|
— |
|
|
|
— |
|
Diluted net loss per share-net loss, weighted average common shares outstanding
and effect of stock options |
|
$ |
(5,588,000 |
) |
|
|
2,538,511 |
|
|
$ |
(2.20 |
) |
| |
|
Year ended April 30, 2014 |
|
| |
|
Loss |
|
|
Shares |
|
|
Per share |
|
| |
|
(numerator) |
|
|
(denominator) |
|
|
amount |
|
| Basic net loss per share-net loss and weighted average common shares outstanding |
|
$ |
(2,609,000 |
) |
|
|
1,999,856 |
|
|
$ |
(1.30 |
) |
| Effect of dilutive securities-stock options |
|
|
— |
|
|
|
— |
|
|
|
— |
|
| Diluted net loss per share -net loss weighted average common shares outstanding and effect of stock options |
|
$ |
(2,609,000 |
) |
|
|
1,999,856 |
|
|
$ |
(1.30 |
) |
|
| Product warranty accruals |
| |
|
Balance |
|
|
Charges to |
|
|
|
|
|
Balance |
|
| |
|
Beginning |
|
|
Costs and |
|
|
|
|
|
End |
|
| |
|
of Year |
|
|
Expenses |
|
|
Deductions |
|
|
of Year |
|
| Year Ended April 30, 2015 |
|
$ |
69,000 |
|
|
$ |
11,000 |
|
|
$ |
(70,000 |
) |
|
$ |
10,000 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Year Ended April 30, 2014 |
|
$ |
69,000 |
|
|
$ |
9,000 |
|
|
$ |
(9,000 |
) |
|
$ |
69,000 |
|
|
| Summary of option activity |
| |
|
|
|
|
|
|
|
Weighted |
|
|
|
|
| |
|
|
|
|
Weighted |
|
|
average |
|
|
Aggregate |
|
| |
|
|
|
|
average |
|
|
remaining |
|
|
intrinsic |
|
| |
|
Shares |
|
|
exercise price |
|
|
contractual life |
|
|
value(1) |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
| Balance April 30, 2014 |
|
|
264,244 |
|
|
$ |
12.42 |
|
|
|
4.46 |
|
|
$ |
6,250 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Granted |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Exercised |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Expired |
|
|
(138,498 |
) |
|
$ |
16.00 |
|
|
|
— |
|
|
|
— |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Balance April 30, 2015 |
|
|
125,746 |
|
|
$ |
8.48 |
|
|
|
3.59 |
|
|
$ |
— |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Exercisable April 30, 2015 |
|
|
125,746 |
|
|
$ |
8.48 |
|
|
|
3.59 |
|
|
$ |
— |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Vested April 30, 2015 |
|
|
125,746 |
|
|
$ |
8.48 |
|
|
|
3.59 |
|
|
$ |
— |
|
|
| The fair value of each stock option granted during the year |
| |
|
2015 |
|
|
2014 |
|
|
2013 |
|
| Expected life (years) |
|
|
|
|
|
|
|
|
|
|
3.0 to 5.75 |
|
| Expected volatility |
|
|
|
|
|
|
|
|
|
|
77% |
|
| Expected dividend yield |
|
|
— |
|
|
|
— |
|
|
|
— |
|
| Expected forfeiture rate |
|
|
— |
|
|
|
— |
|
|
|
5.0% |
|
| Risk-free interest rate |
|
|
— |
|
|
|
— |
|
|
|
0.5% to 0.6% |
|
| Weighted average fair value of options granted during the year |
|
$ |
— |
|
|
$ |
— |
|
|
$ |
0.90 |
|
|