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Net Income (Loss) Per Share (Details) (USD $) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012
Net Income (Loss) Per Share [Abstract] |  |  |  |
Income from continuing operations | $ 2,164,000 | $ 6,503,000 | $ 2,267,000 | $ 8,870,000
Income (loss) from discontinued operations | 0 | (15,436,000) | 100,877,000 | (27,665,000)
Net income (loss) | $ 2,164,000 | $ (8,933,000) | $ 103,144,000 | $ (18,795,000)
Basic (in shares) | 14,460,979 | 14,456,921 | 14,460,979 | 14,192,235
Effect of dilutive stock options and warrants (in shares) | 93,478 | 44,231 | 151,309 | 56,480
Diluted (in shares) | 14,554,457 | 14,501,152 | 14,612,288 | 14,248,715
Net income (loss) per share [Abstract] |  |  |  |
Basic net income per share from continuing operations (in dollars per share) | $ 0.15 | $ 0.45 | $ 0.16 | $ 0.63
Basic net income (loss) per share from discontinued operations (in dollars per share) | $ 0 | $ (1.07) | $ 6.97 | $ (1.95)
Basic net income (loss) per share (in dollars per share) | $ 0.15 | $ (0.62) | $ 7.13 | $ (1.32)
Diluted net income per share from continuing operations (in dollars per share) | $ 0.15 | $ 0.45 | $ 0.16 | $ 0.62
Diluted net income (loss) per share from discontinued operations (in dollars per share) | $ 0 | $ (1.07) | $ 6.90 | $ (1.94)
Diluted net income (loss) per share (in dollars per share) | $ 0.15 | $ (0.62) | $ 7.06 | $ (1.32)
Minimum [Member] |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |
Exercise price of antidilutive options and warrants (in dollars per share) | $ 9.85 | $ 4.60 | $ 8.70 | $ 5.83
Maximum [Member] |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |
Exercise price of antidilutive options and warrants (in dollars per share) | $ 15.06 | $ 15.06 | $ 15.06 | $ 15.06
Stock Options [Member] |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |
Antidilutive shares excluded from computation of earnings per share (in shares) | 755,334 | 1,311,534 | 1,034,534 | 1,279,534
Warrants [Member] |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |
Antidilutive shares excluded from computation of earnings per share (in shares) |  | 735,484 |  | 735,484

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