Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Consolidated Statements of Comprehensive Income (Loss) (Unaudited) [Abstract] | ||||
| Net income (loss) | $ 9,143,000 | $ (1,392,000) | $ 16,651,000 | $ 518,000 |
| Other comprehensive income (loss), net of tax: | ||||
| Unrealized gain (loss) on short-term investments (net of tax of $44,000, $(36,000), $59,000, and $(40,000)) | 66,000 | (53,000) | 88,000 | (59,000) |
| Foreign currency translation loss | (807,000) | (1,424,000) | (1,342,000) | (1,773,000) |
| Total other comprehensive loss, net of tax | (741,000) | (1,477,000) | (1,254,000) | (1,832,000) |
| Comprehensive income (loss) | $ 8,402,000 | $ (2,869,000) | $ 15,397,000 | $ (1,314,000) |