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Stockholders' Equity | 6 Months Ended
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Sep. 30, 2017
Stockholders' Equity Note [Abstract] |
Stockholders' Equity | Stockholders' Equity The following table represents changes in stockholders' equity for the six months ended September 30, 2017 (dollars in thousands):
|  |  |  |  | Additional paid-in capital |  | Retained earnings |  | Accumulated other comprehensive income |  | Total
| Common Stock |  |  |  |
| Shares |  | Amount |  |  |  |
Balance, April 1, 2017 | 8,994,968 |  |  | $ | 90 |  |  | $ | 244,791 |  |  | $ | 148,141 |  |  | $ | 1,386 |  |  | $ | 394,408 |
Cumulative effect of implementing ASU 2016-09 | — |  |  | — |  |  | — |  |  | 69 |  |  | — |  |  | 69 |
Stock option exercises, including incremental tax benefits | 32,626 |  |  | — |  |  | (1,583 | ) |  |  |  |  | — |  |  | (1,583 | )
Share-based compensation | — |  |  | — |  |  | 1,535 |  |  | — |  |  | — |  |  | 1,535 |
Net income | — |  |  | — |  |  | — |  |  | 17,935 |  |  | — |  |  | 17,935 |
Unrealized loss on available-for-sale securities | — |  |  | — |  |  | — |  |  | — |  |  | 604 |  |  | 604 |
Balance, September 30, 2017 | 9,027,594 |  |  | $ | 90 |  |  | $ | 244,743 |  |  | $ | 166,145 |  |  | $ | 1,990 |  |  | $ | 412,968 |
(1) | Other comprehensive income is comprised of unrealized gains and losses on available-for-sale investments. Unrealized gains before tax effect on available-for-sale securities were $983,000 for the six months ended September 30, 2017.

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- References No definition available. + Details
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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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